Township · Michigan
Williamstown Township, Michigan
Williamstown Township, township, in Ingham County, Michigan. Williamstown Township had 5,338 residents on July 1, 2025 by the Census Bureau's estimate, up 0.6% since 2020; the 2020 Census counted 5,286 and the ACS 2020-2024 5-year estimates put it at 5,295 (±21). GEOID 2606587440.
Residents, July 2025 estimate
5,338
Census Bureau estimate (no margin published)
2020 Census count: 5,286 · ACS 2020-2024: 5,295 ±21
Median household income
$114,792
±$25,067 (90% margin)
Michigan: $72,875
Median home value
$358,700
±$51,639 (90% margin)
Michigan: $231,600
Median gross rent
$1,622
±$427 (90% margin)
Michigan: $1,129
Where is Williamstown Township and what county is it in?
Williamstown Township is a township in Ingham County, Michigan. It covers 29.3 square miles of land, 181 residents per square mile in 2020.
Part of Okemos (CDP) and Haslett (CDP) also lie in it.
Williamstown Township is in the Lansing-East Lansing, MI metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Williamstown Township, and is it growing?
The Census Bureau estimates that 5,338 people lived in Williamstown Township on July 1, 2025, up 0.6% since 2020, in line with Michigan (+0.5%). The 2020 Census counted 5,286 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 5,295 (±21).
| Measure | Williamstown Township | Ingham County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 5,295±21 | 283,913 | +164 |
| Households | 2,205±204 | 117,096 | +264 |
| Average household size | 2.39±0.23 | 2.27 | no clear change |
| Housing units | 2,309±208 | 126,232 | +284 |
Williamstown Township's population since 2000
From 4,834 in 2000 to 5,338 in 2025: up 10.4%. The 2000, 2010 and 2020 figures are census counts, each for Williamstown Township as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Williamstown Township?
The median resident of Williamstown Township is 52.3 years old; 20.8% are under 18 and 28.3% are 65 or older. The largest group is non-Hispanic white residents at 92.7%, then Hispanic or Latino residents (of any race) at 3.3%.
| Measure | Williamstown Township | Ingham County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 52.3±6.1 | 33.3 | no clear change |
| Under 18 years | 20.8%±4.7 pts | 19.6% | – |
| 65 years and over | 28.3%±4.7 pts | 14.9% | – |
| Male | 48.5%±3.3 pts | 48.9% | – |
| Hispanic or Latino (any race) | 3.3%±1.9 pts | 8.7% | – |
| White alone, not Hispanic | 92.7%±3.4 pts | 66.6% | no clear change |
| Black or African American alone, not Hispanic | 0.2%±0.2 pts | 11.0% | – |
| Asian alone, not Hispanic | 0.0%±0.6 pts | 6.2% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.6 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.9%±1.9 pts | 6.4% | – |
| Some other race alone, not Hispanic | 0.9%±1.3 pts | 0.8% | – |
| Born outside the United States | 1.0%±0.7 pts | 9.4% | – |
| Speak a language other than English at home (age 5+) | 2.9%±1.5 pts | 13.4% | – |
| Civilian veterans (age 18+) | 5.0%±2.4 pts | 4.7% | – |
| With a disability | 13.5%±3.7 pts | 13.9% | – |
| No health insurance coverage | 5.3%±4.1 pts | 4.9% | – |
| High school graduate or higher (age 25+) | 96.4%±2.7 pts | 93.7% | – |
| Bachelor's degree or higher (age 25+) | 54.7%±6.2 pts | 41.2% | no clear change |
| Graduate or professional degree (age 25+) | 24.0%±4.6 pts | 18.1% | – |
| Lived in the same house a year earlier | 91.7%±4.0 pts | 81.5% | – |
| Moved from another state in the past year | 2.3%±3.0 pts | 2.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Williamstown Township earn?
Half of Williamstown Township's 2,205 households earn less than $114,792 a year (±$25,067), against $65,526 in Ingham County and $72,875 in Michigan. In 2015-2019 the median was $152,490 in 2024 dollars, so it fell by $37,698 after inflation.
| Measure | Williamstown Township | Ingham County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $114,792±$25,067 | $65,526 | −$37,698 |
| Mean household income | $143,293±$16,159 | $89,065 | – |
| Per capita income | $60,525±$7,831 | $37,723 | no clear change |
| People below the poverty line | 1.5%±1.3 pts | 16.7% | – |
| Children under 18 below the poverty line | 0.0%±2.7 pts | 17.6% | – |
| Households receiving SNAP | 1.9%±2.4 pts | 12.1% | – |
| Households with a computer | 94.9%±4.0 pts | 95.8% | – |
| Households with a broadband subscription | 92.3%±4.7 pts | 90.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Williamstown Township?
Owners occupy 96.7% of Williamstown Township's occupied homes and renters 3.3%. The median owner-occupied home is valued at $358,700 by its owner (±$51,639). The median renter pays $1,622 a month including utilities.
| Measure | Williamstown Township | Ingham County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $358,700±$51,639 | $198,800 | no clear change |
| Median gross rent | $1,622±$427 | $1,084 | +$678 |
| Renters paying 35% or more of income on rent | 0.0%±37.0 pts | 44.8% | – |
| Median monthly owner costs, with a mortgage | $2,116±$315 | $1,501 | – |
| Owner-occupied homes | 96.7%±2.2 pts | 59.5% | +5.6 pts |
| Renter-occupied homes | 3.3%±2.2 pts | 40.5% | – |
| Housing units | 2,309±208 | 126,232 | +284 |
| Homeowner vacancy rate | 0.0%±1.3 pts | 1.3% | – |
| Rental vacancy rate | 0.0%±32.7 pts | 5.6% | – |
| Single-family detached homes | 97.2%±2.6 pts | 60.5% | – |
| Mobile homes | 1.1%±1.7 pts | 2.6% | – |
| Built 2020 or later | 0.0%±1.3 pts | 0.8% | – |
| Built 2010 to 2019 | 3.6%±2.5 pts | 5.4% | – |
| Built 1939 or earlier | 6.7%±3.6 pts | 16.5% | – |
| Households with no vehicle | 1.7%±1.4 pts | 8.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Williamstown Township building?
Builders took permits for 7 new housing units in Williamstown Township in 2025 (7 in single-family houses), 1.3 per 1,000 residents against 2.3 across Michigan.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Williamstown Township work and get to work?
71.2% of Williamstown Township's workers drive alone and 19.1% work from home. The average trip to work takes 23.1 minutes. The unemployment rate in 2020-2024 averaged 3.9%.
| Measure | Williamstown Township | Ingham County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 54.6%±6.0 pts | 64.2% | – |
| Unemployment rate | 3.9%±2.2 pts | 6.2% | – |
| Drove alone to work | 71.2%±6.4 pts | 66.1% | – |
| Carpooled | 5.1%±3.1 pts | 8.0% | – |
| Public transportation | 0.8%±1.1 pts | 2.4% | – |
| Walked | 3.1%±3.5 pts | 4.1% | – |
| Worked from home | 19.1%±5.7 pts | 17.3% | +10.6 pts |
| Mean travel time to work | 23.1 min±2.7 | 20.5 min | −5.8 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Williamstown Township?
1 census tract lies mostly in Williamstown Township, and 1 more reaches into it (2020 census blocks).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Williamstown Township) · Census block assignment files
How does Williamstown Township compare with other places in Michigan?
By the Census Bureau's July 2025 estimates, Williamstown Township is the 2,184th-most populous of the 16,079 U.S. towns and townships that have one and the 205th-most populous of 1,240 in Michigan.
Williamstown Township ranks 68th of 1,354 places in Michigan with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 205th | 1,240 |
| Growth 2020-2025 (PEP) | 646th | 1,281 |
| Residents per square mile | 615th | 1,356 |
| Median household income | 68th | 1,354 |
| Per capita income | 69th | 1,355 |
| Median home value | 129th | 1,354 |
| Median gross rent | 56th | 1,212 |
| Bachelor's degree or higher | 65th | 1,350 |
| Median age | 162nd | 1,356 |
| Owner-occupied share | 62nd | 1,356 |
| Work from home | 112th | 1,062 |
| Travel time to work | 861st | 1,356 |
Williamstown Township's figures with every place in Michigan (CSV)
Every place in Michigan, sortable · Compare Williamstown Township with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Williamstown Township?
21 of the 57 figures for Williamstown Township on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Williamstown Township are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.