Penn Township, Michigan Living Guide: The Ultimate living guide

By Andrew McManamonPlaces To Live In Michigan

Penn Township, Michigan Living Guide: The Ultimate Living Guide

Penn Township, Michigan doesn't come with a lot of noise. It's a quiet, rural Cass County township most people drive through on M-60 without realizing they're passing through one of the most historically significant communities in the state. The Bonine House sits right there at the corner of M-60 and Penn Road, and most of the cars blowing past it have no idea that the Quaker and Illinois lines of the Underground Railroad met on that very ground — or that over 1,500 freedom seekers passed through what is now Penn Township on their way to freedom in Canada.

That history is part of what makes Penn Township worth knowing about. So are Diamond Lake, Donnell Lake, the International Dark Sky Park hidden nine miles east of Cassopolis, and the fact that this township has a median household income that runs about 20% above the Michigan statewide figure — despite a cost of living well below the national average.

This guide covers it all: the numbers, the tradeoffs, the history, and what it actually feels like to put down roots here. Let's get into it.

Penn Township, Michigan Living Guide: The Ultimate living guide

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Where Is Penn Township, Michigan Located?

According to Wikipedia, Penn Township is a civil township of Cass County, located just northeast of the county's geographic center. Per the U.S. Census Bureau, the township covers a total area of 35.4 square miles, of which 33.6 square miles is land and 1.8 square miles is water.

The village of Vandalia is the township's only incorporated municipality, situated in the southeastern portion of the township along M-60. The unincorporated area of Shore Acres — historically known as Geneva, the original Cass County seat when it was platted in 1831 per Wikipedia — is located in the township's southwestern area.

Key distances:

Cassopolis (Cass County seat): approximately 9 miles to the west
Three Rivers (St. Joseph County): approximately 15 miles to the northeast
South Bend, Indiana: approximately 30 miles to the southwest
Kalamazoo: approximately 45 miles to the north

Highway access centers on M-60, which runs east-west through the township and through the village of Vandalia. According to the Michigan Department of Transportation (MDOT), M-60 connects Penn Township westward to Cassopolis and the broader county seat amenities, and eastward toward Three Rivers and US-131, the latter providing access to Kalamazoo to the north and Fort Wayne to the south. I-94 is accessible to the north via Kalamazoo County.

According to Census Reporter, based on ACS 2024 5-year data, the mean travel time to work for Penn Township residents is approximately 34.3 minutes — higher than both the Cass County average (24.4 minutes) and the Michigan statewide average (24.2 minutes). This reflects the township's off-highway positioning relative to major employment centers, and is a meaningful data point for commuters evaluating this area.

Cost of Living in Penn Township, Michigan

According to BestPlaces.net, Cass County as a whole carries a Cost of Living Index of 84.8 compared to the U.S. national baseline of 100 — meaning the broader region runs approximately 15% below the national average. Michigan statewide scores approximately 91.5. Penn Township, as one of Cass County's more rural, low-density interior townships, tracks at or below those county-level figures on housing and transportation.

Based on Census Reporter ACS 2024 5-year data, Penn Township presents an economically solid profile:

Median household income: approximately $83,897 — about 20% above the Michigan statewide median of $72,875 and about 19% above the Cass County median of $70,443
Per capita income: approximately $45,587 — about 20% above the Cass County per capita ($39,236) and about 12% above the Michigan figure ($40,735)
Poverty rate: approximately 9.3% — below both the Cass County rate of 11.9% and the Michigan rate of 13.2%
Median age: approximately 51.1 years — about 25% above the Michigan median of 40.2, reflecting the township's significant retired and near-retirement population

The income picture is notably strong for a rural Cass County township, and the high median age suggests Penn Township attracts a significant number of retirees, second-home owners who have made the township a primary residence, and established households who value the lake-country setting without the price premium of more publicized Michigan lakefront communities.

Day-to-day costs — groceries, fuel, and utilities — are generally in line with southwest Michigan averages. The township is car-dependent; all services require a vehicle. Healthcare is available in Cassopolis, Three Rivers, and the South Bend metro area's hospital systems.

Real Estate & Housing Overview

Penn Township's real estate market is distinctly a lake-country market — and that shapes everything about pricing, inventory, and buyer expectations.

According to RocketHomes, based on Realcomp II Ltd. MLS data, the median list price in Penn Township was approximately $419,900 as of March 2024, with an average listing age of 102 days. That 102-day average signals a patient, slower-paced market where buyers generally have time to evaluate and where overpriced properties sit — important context for anyone expecting the compressed timelines common in Michigan metro markets.

For county-level comparison, RocketHomes reports the Cass County median sold price at approximately $232,500 as of August 2024 — making Penn Township's median list price approximately 80% above the countywide average. That premium reflects the dominance of Diamond Lake and Donnell Lake properties in the active listing pool. Waterfront and water-access homes on both lakes routinely command prices well above the township's statistical median.

According to Wikipedia, there were 1,280 housing units in the township at an average density of 38.0 per square mile — a very low-density pattern consistent with the rural, lake-country character of the area. Per Niche.com, most residents of Penn Township own their homes. The housing stock is a mix of:

Lakefront and lake-access properties (Diamond Lake, Donnell Lake, and smaller private lakes) — the market's price leaders, ranging from renovated vintage cottages to updated year-round waterfront homes
Rural residential acreage parcels — farmhouses, older ranches, and country properties on large lots, typically on well and septic
Village of Vandalia properties — a modest, tight-knit platted community along M-60 with older single-family stock at significantly lower price points than the lakefront market

New construction in Penn Township is minimal. Per historical building permit data, the township issues occasional single-family permits but has no active subdivision development at scale. This is primarily a resale market.

Property Taxes in Penn Township

Michigan's mill-based property tax system is the same in Penn Township as anywhere in the state: one mill equals $1 per $1,000 of taxable value. Michigan's Proposal A (1994) caps annual growth in taxable value, providing meaningful long-term protection for established homeowners and a meaningful consideration for buyers who plan to stay.

According to the Cass County 2023 Millage Rates compiled from county and township records (and verified against the Michigan Department of Treasury's 2023 Total Property Tax Rates Report), homestead (principal residence) millage rates for Penn Township are:

Penn Township / Cassopolis Public Schools: approximately 21.8631 mills for principal residence
Penn Township / Marcellus Community Schools: approximately 23.0846 mills for principal residence

These rates are among the more competitive in Cass County for comparable townships, and are well below the rates found in most Michigan urban and suburban areas, where 35–55 mills for homestead properties are common.

For quick estimation: at 21.8631 mills (Cassopolis school district), a property with a taxable value of $150,000 would yield an estimated annual homestead tax of approximately $3,280. At 23.0846 mills (Marcellus school district), the same taxable value would produce approximately $3,463.

The Michigan Department of Treasury's Property Tax Estimator at michigan.gov/taxes allows buyers to calculate estimates using 2024 millage data by selecting Cass County, Penn Township, and the applicable school district. Always verify current rates directly with the Cass County Equalization Office, as rates can change with voter-approved levies and annual budget adjustments. No estimate should be treated as a guarantee of any individual tax bill.

Things to Do & Lifestyle in Penn Township, Michigan

Penn Township punches above its weight on lifestyle and recreation. For a township of roughly 2,000 residents, the concentration of outdoor assets and historical significance here is genuinely impressive.

Diamond Lake and Donnell Lake

According to Wikipedia, Diamond Lake (southwest) and Donnell Lake (southeast) are the two largest lakes in Penn Township. Both offer the boating, fishing, and water recreation typical of Cass County's lake-rich landscape. According to Discover Cass County (discovercasscounty.com), the county's lakes number between 122 and over 200. Michigan DNR manages public access sites on key Cass County lakes; buyers interested in specific access points for Diamond or Donnell Lake should verify current DNR access availability at michigan.gov/dnr.

Dr. T.K. Lawless Park — International Dark Sky Park

This is Penn Township's showstopper for outdoor recreation, and it's genuinely extraordinary. According to Cass County Parks and Recreation (casscountymi.org), Dr. T.K. Lawless County Park is an 820-acre nature park located on Monkey Run Street, nine miles east of Cassopolis off M-60 and Lewis Lake Road — placing it directly within Penn Township's geographic area.

In 2020, the park was designated an International Dark Sky Park by the International Dark-Sky Association, making it one of only two in the state of Michigan and the only one in southern Michigan, per the Cass County Parks Department announcement and DarkSky International (darksky.org). The park was posthumously named for Chicago-based physician Dr. Theodore Kenneth Lawless, M.D., who deeded approximately 850 acres to the county in 1971 per DarkSky International. The park is open year-round and, per ClickOnDetroit and Visit Southwest Michigan (swmichigan.org), offers mountain biking, hiking, disc golf, fishing, volleyball courts, horseshoe pits, inner tube sledding, cross-country skiing (over seven miles of groomed trails), and picnicking — in addition to its acclaimed stargazing programming.

If you've never looked at the Milky Way from a county park in southwest Michigan, you're missing something real.

The Underground Railroad and the Bonine House

Penn Township is one of the most historically significant communities in Cass County — and arguably in Michigan — when it comes to the Underground Railroad. According to Discover Cass County (discovercasscounty.com), Vandalia was a major hub on the Underground Railroad, with over 1,500 freedom seekers helped to freedom in Canada by Quakers and free Black residents living in Penn, Calvin, and Porter townships.

Per the Underground Railroad Society of Cass County (urscc.org), the James E. Bonine House — located at the corner of M-60 and Penn Road in Vandalia — is owned and operated by the URSCC, which offers tours and historical events. According to ABC57 News and urscc.org, the Bonine Carriage House served as a known station on the Underground Railroad, where the Quaker Line from Ohio and the Illinois Line from St. Louis intersected. The property hosts multiple annual events including the Cass County UGRR Wax Museum, Underground Railroad Days (typically the second weekend in July), and Christmas at the Bonine House (first weekend in December). According to the URSCC website, admission to the house is free, with donations welcome.

Per the Cass County Council on Aging's Underground Railroad Driving Tour, there are 20 documented UGRR sites within four miles of Vandalia — a remarkable concentration for any township in America.

Schools & Education in Penn Township, Michigan

According to Wikipedia, most of Penn Township is served by Cassopolis Public Schools. Portions of the township closer to the Marcellus Township boundary may be served by Marcellus Community Schools, per Cass County millage rate records.

Cassopolis Public Schools

Per Niche.com, Cassopolis Public Schools serves approximately 858 students in grades K–12 with a student-teacher ratio of 19:1. State test score data cited by Niche shows 14% of students at or above proficiency in math and 25% in reading. GreatSchools.org describes the district as one where a larger number of schools are rated below average in school quality, while noting that students are making about the same academic progress as the state average.

Individual school performance by level, per Niche.com:

Cassopolis Ross Beatty High School (grades 9–12): Niche grade C+; 259 students; student-teacher ratio 20:1
Cassopolis Middle School (grades 6–8): Niche grade C−; 207 students; student-teacher ratio 16:1 per Niche; GreatSchools rates the school as performing below average compared to Michigan public and charter schools at the same grade level
Cassopolis Elementary (grades K–5): Niche grade C; 370 students; student-teacher ratio 15:1

Niche reviewers for Cassopolis Public Schools frequently describe the small district size as creating a tight-knit, community-oriented environment — where teachers know students individually and class sizes remain manageable.

Marcellus Community Schools

For the small portion of Penn Township that falls within the Marcellus school district boundary, per Niche.com, Marcellus Community Schools is rated above average for a Michigan public district with 616 students in grades PK–12 and a 22:1 student-teacher ratio. State test scores per Niche show 34% of students at or above proficiency in math and 42% in reading — meaningfully stronger than the Cassopolis district figures.

Families should verify the school district assignment for any specific property directly with the relevant district or the Cass County Equalization Office, as boundaries can change.

For higher education, Southwestern Michigan College in Dowagiac is the county's primary two-year institution and its largest employer, per Wikipedia. Indiana University South Bend, Western Michigan University (Kalamazoo), and South Bend's university cluster are all accessible within 30–50 miles.

Pros & Cons of Living in Penn Township, Michigan

Pros:

Median household income approximately $83,897 per Census Reporter ACS 2024 — about 20% above the Michigan statewide median and 19% above the Cass County median, reflecting a financially established community
Per capita income approximately $45,587 per Census Reporter — about 20% above the Cass County average and 12% above the Michigan average
Poverty rate (9.3% per Census Reporter ACS 2024) below both Cass County (11.9%) and Michigan (13.2%) averages
Diamond Lake and Donnell Lake are the two largest lakes in the township per Wikipedia, providing year-round water recreation access
Dr. T.K. Lawless County Park — 820 acres of multi-season outdoor recreation including mountain biking, hiking, disc golf, cross-country skiing, fishing, and the only International Dark Sky Park in southern Michigan, per Cass County Parks and casscountymi.org
Homestead millage rates of approximately 21.86–23.08 mills per 2023 Cass County millage rate records — among the more competitive rates in Cass County, and well below most Michigan urban areas
Median list price of approximately $419,900 per RocketHomes/Realcomp II Ltd. (March 2024), with an average listing age of 102 days — a patient market with genuine buyer negotiating room
James E. Bonine House and 20+ documented Underground Railroad sites within 4 miles of Vandalia per URSCC and Cass County COA — a genuinely rare cultural and heritage asset for a township of this size
Regional cost of living approximately 15% below the national average per BestPlaces.net (Cass County index: 84.8)
Pennsylvania Quaker heritage and Underground Railroad history dating to the 1820s and 1830s per Wikipedia and Cass County Wikipedia

Cons:

Mean commute time approximately 34.3 minutes per Census Reporter ACS 2024 — notably above both the Cass County average (24.4 min) and Michigan statewide average (24.2 min), reflecting the township's interior positioning away from major highways
Cassopolis Public Schools (serving most of the township per Wikipedia) rates below average on school quality per GreatSchools.org, with 14% math and 25% reading proficiency per Niche.com
Median list price of approximately $419,900 (RocketHomes, March 2024) is the highest of any Cass County township in this series — driven heavily by lakefront inventory — and may exclude buyers seeking modest entry-level properties
No walkable commercial center in the township itself — all daily services require a vehicle; the village of Vandalia offers minimal commercial activity
No public transit of any kind — fully car-dependent
Housing inventory is very limited and slow-moving (102-day average listing age per RocketHomes, March 2024); selection is narrow, particularly for buyers with specific requirements
Well and septic are standard for most properties outside Vandalia; no municipal water or sewer infrastructure for rural parcels
Median age of approximately 51.1 years (per Census Reporter ACS 2024) — the highest of any township profiled in this series — may reflect limited peer-age community density for younger residents

Frequently Asked Questions About Living in Penn Township, Michigan

What is the population of Penn Township, Cass County, Michigan?
According to Wikipedia, the population of Penn Township was 1,755 at the 2020 U.S. Census. Census Reporter, based on ACS 2024 5-year data, places the current estimate at approximately 2,052, with a population density of approximately 61 people per square mile.

Where is Penn Township, Michigan located?
According to Wikipedia, Penn Township is a civil township of Cass County located just northeast of the county's center. The village of Vandalia lies in the southeastern portion of the township along M-60. The township is approximately 9 miles east of Cassopolis (the county seat), 15 miles southwest of Three Rivers, 30 miles northeast of South Bend, Indiana, and 45 miles south of Kalamazoo.

What is the Bonine House in Vandalia, Michigan?
Per Wikipedia and the Underground Railroad Society of Cass County (urscc.org), the James E. Bonine House is a historically significant Second Empire Victorian farmhouse at the corner of M-60 and Penn Road in Vandalia, built in the mid-1840s by Quaker abolitionist James E. Bonine and his wife Sarah Bogue Bonine. The Bonine Carriage House served as a documented station on the Underground Railroad, where the Quaker Line and Illinois Line converged. The property is owned and operated by the URSCC and is open for tours (typically June through September, Tuesday–Saturday, 1–4pm per urscc.org) and annual events including Underground Railroad Days (second weekend in July) and Christmas at the Bonine House (first weekend in December). Admission is free with donations welcome.

What school district serves Penn Township, Michigan?
According to Wikipedia, most of Penn Township is zoned to Cassopolis Public Schools. A small portion near the Marcellus Township boundary may fall within the Marcellus Community Schools district, per 2023 Cass County millage rate records. Families should verify school district assignment for a specific address directly with the relevant district or the Cass County Equalization Office.

What are property taxes like in Penn Township?
Per 2023 Cass County millage rate records compiled from county and township data, homestead (principal residence) millage rates in Penn Township are approximately 21.8631 mills for the Cassopolis school district overlay and approximately 23.0846 mills for the Marcellus school district overlay. These are competitive compared to many Michigan communities. Verify current rates via the Michigan Department of Treasury's Property Tax Estimator at michigan.gov/taxes, or contact the Cass County Equalization Office directly.

What is the median home price in Penn Township, Michigan?
According to RocketHomes, based on Realcomp II Ltd. MLS data, the median list price in Penn Township was approximately $419,900 as of March 2024, with an average listing age of 102 days. For county context, RocketHomes reports the Cass County median sold price at approximately $232,500 as of August 2024 — making Penn Township's listing prices significantly above the county median, driven by the dominance of Diamond Lake and Donnell Lake waterfront and water-access properties.

What is Dr. T.K. Lawless Park?
According to Cass County Parks and Recreation (casscountymi.org) and DarkSky International (darksky.org), Dr. T.K. Lawless County Park is an 820-acre nature park located on Monkey Run Street off M-60 in Penn Township, nine miles east of Cassopolis. It was named for Chicago-based physician Dr. Theodore Kenneth Lawless, who deeded approximately 850 acres to the county in 1971. In 2020, it received designation as an International Dark Sky Park by the International Dark-Sky Association — one of only two in Michigan, and the only one in southern Michigan. Per Cass County Parks and Visit Southwest Michigan (swmichigan.org), the park offers mountain biking, hiking, disc golf, fishing, volleyball, horseshoe pits, inner tube sledding, over seven miles of groomed cross-country ski trails, and year-round public access with no admission fee.

What lakes are in Penn Township, Michigan?
According to Wikipedia, the two largest lakes in Penn Township are Diamond Lake (southwest) and Donnell Lake (southeast). Buyers interested in lakefront or lake-access properties on either lake should verify current DNR public access points at michigan.gov/dnr and consult local MLS data for current availability.

Is Penn Township, Michigan connected to the Underground Railroad?
Yes — significantly. According to Discover Cass County (discovercasscounty.com), Vandalia in Penn Township was a major hub on the Underground Railroad, with over 1,500 freedom seekers aided by Quakers and free Black residents in Penn, Calvin, and Porter townships. The Cass County Council on Aging's Underground Railroad Driving Tour documents 20 UGRR sites within four miles of Vandalia. The James E. Bonine House and Carriage House are the most prominent surviving landmarks.

What is the median household income in Penn Township?
According to Census Reporter, based on ACS 2024 5-year data, the median household income in Penn Township is approximately $83,897 — about 20% above the Michigan statewide median of $72,875 and about 19% above the Cass County median of $70,443.

What is the zip code for Penn Township / Vandalia, Michigan?
The primary zip code serving Penn Township and the village of Vandalia is 49095, corresponding to Vandalia, Michigan, per the U.S. Census Bureau and Wikipedia.

How long has Penn Township been settled?
According to Wikipedia, the village of Geneva (now known as Shore Acres in Penn Township) was platted in 1831 and briefly served as the Cass County seat before Cassopolis took that role. Pennsylvania Quakers made a settlement in Penn Township as early as 1829, per Wikipedia's Cass County article — making Penn Township one of the earliest settled communities in the county. The Quaker community's anti-slavery convictions made it a natural hub for Underground Railroad activity throughout the 1830s–1860s.

Is Penn Township a good place to retire?
According to Census Reporter ACS 2024 data, the median age in Penn Township is approximately 51.1 years — notably above the Michigan statewide median of 40.2 years and the Cass County median of 45.5 years. Per Niche.com, many retirees live in Penn Township. The combination of lake access, low property tax millage rates (21.86–23.08 mills per 2023 county records), a regional cost of living approximately 15% below the national average per BestPlaces.net, and a mean household income significantly above state and county medians suggests the township attracts and retains retirees and near-retirement households effectively.

What is the commute like from Penn Township?
According to Census Reporter ACS 2024 data, the mean travel time to work for Penn Township residents is approximately 34.3 minutes — the highest of any township profiled in this guide series, and meaningfully above the Cass County average of 24.4 minutes and Michigan's 24.2 minutes. Residents employed in Cassopolis, Three Rivers, or South Bend have manageable commutes via M-60; those commuting to Kalamazoo (approximately 45 miles) or further should factor drive time and fuel costs into their budget planning carefully.

Is there anything to do near Penn Township on a weekend?
Beyond the township's own lakes and Dr. T.K. Lawless Park, the broader area offers the 5 Mile Drive-In in Dowagiac (one of the last operating drive-ins in Michigan, per Awesome Mitten), Fernwood Botanical Garden and Nature Preserve in Niles, and easy access to the South Bend-Mishawaka metro's dining, entertainment, and cultural offerings approximately 30 miles to the southwest. The annual Underground Railroad Days in Vandalia (typically the second weekend in July, per urscc.org) draws visitors from across the region and is one of the Cass County calendar's signature annual events.

To Conclude:

If you're looking to move to, from, or within the state of Michigan in one day or a million, I help people do just that and I love it as a Michigan Realtor. Please reach out anytime for help — I'm happy to be your go-to resource.

Question for You!

Penn Township has one of the most remarkable concentrations of Underground Railroad history in the entire state of Michigan — would that kind of deep local heritage be a meaningful part of why you'd choose to put down roots in a community? Drop your thoughts in the comments!

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