Township · Illinois
Arrowsmith Township, Illinois
Arrowsmith Township, township, in McLean County, Illinois. Arrowsmith Township had 443 residents on July 1, 2025 by the Census Bureau's estimate, down 2.0% from the Bureau's April 2020 estimates base of 452; the 2020 Census counted 498 on the place as it was defined then and the ACS 2020-2024 5-year estimates put it at 597 (±170). GEOID 1711302369.
Residents, July 2025 estimate
443
Census Bureau estimate (no margin published)
2020 Census count: 498 · ACS 2020-2024: 597 ±170
Median household income
$98,438
±$25,554 (90% margin)
Illinois: $83,390
Median home value
$121,200
±$13,934 (90% margin)
Illinois: $263,300
Median gross rent
$1,113
±$60 (90% margin)
Illinois: $1,274
Where is Arrowsmith Township and what county is it in?
Arrowsmith Township is a township in McLean County, Illinois. It covers 36.1 square miles of land, 14 residents per square mile in 2020.
One place lies inside Arrowsmith Township: Arrowsmith (village, 276 in 2020).
Arrowsmith Township is in the Bloomington, IL metropolitan statistical area (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 Arrowsmith Township, and is it growing?
The Census Bureau estimates that 443 people lived in Arrowsmith Township on July 1, 2025, down 2.0% since 2020, a steeper fall than Illinois's (−0.8%). The Census Bureau's yearly estimates start from its own April 2020 base for Arrowsmith Township, 452, which differs from the 2020 Census count of 498: the estimates follow the place as the estimates program defines it today (its present boundaries, and for a consolidated city-county the area the program assigns it), so the change since 2020 is measured from that base. The 2020-2024 American Community Survey, a five-year sample, puts the population at 597 (±170).
| Measure | Arrowsmith Township | McLean County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 597±170 | 171,556 | no clear change |
| Households | 200±53 | 70,220 | no clear change |
| Average household size | 2.99±0.64 | 2.31 | no clear change |
| Housing units | 217±53 | 75,305 | no clear change |
Arrowsmith Township's population since 2000
From 569 in 2000 to 443 in 2025: down 22.1%. The 2000, 2010 and 2020 figures are census counts, each for Arrowsmith 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 Arrowsmith Township?
The median resident of Arrowsmith Township is 33.9 years old; 28.8% are under 18 and 18.1% are 65 or older. The largest group is non-Hispanic white residents at 86.4%, then non-Hispanic Black residents at 6.9%.
| Measure | Arrowsmith Township | McLean County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.9±6.9 | 34.3 | no clear change |
| Under 18 years | 28.8%±12.7 pts | 21.2% | – |
| 65 years and over | 18.1%±9.1 pts | 14.6% | – |
| Male | 52.3%±4.8 pts | 48.9% | – |
| Hispanic or Latino (any race) | 4.2%±5.9 pts | 6.4% | – |
| White alone, not Hispanic | 86.4%±9.0 pts | 76.2% | −10.7 pts |
| Black or African American alone, not Hispanic | 6.9%±9.6 pts | 8.4% | – |
| Asian alone, not Hispanic | 0.0%±6.1 pts | 5.2% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±6.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±6.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.5%±2.6 pts | 3.3% | – |
| Some other race alone, not Hispanic | 0.0%±6.1 pts | 0.3% | – |
| Born outside the United States | 0.0%±6.1 pts | 7.6% | – |
| Speak a language other than English at home (age 5+) | 0.2%±0.5 pts | 9.7% | – |
| Civilian veterans (age 18+) | 8.7%±4.6 pts | 5.3% | – |
| With a disability | 7.7%±4.1 pts | 10.1% | – |
| No health insurance coverage | 1.7%±2.3 pts | 4.6% | – |
| High school graduate or higher (age 25+) | 88.7%±7.0 pts | 95.9% | – |
| Bachelor's degree or higher (age 25+) | 20.9%±7.9 pts | 47.2% | no clear change |
| Graduate or professional degree (age 25+) | 9.6%±5.7 pts | 16.2% | – |
| Lived in the same house a year earlier | 93.8%±5.3 pts | 85.1% | – |
| Moved from another state in the past year | 4.5%±4.8 pts | 1.5% | – |
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 Arrowsmith Township earn?
Half of Arrowsmith Township's 200 households earn less than $98,438 a year (±$25,554), against $79,905 in McLean County and $83,390 in Illinois. In 2015-2019 it was $77,432 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Arrowsmith Township | McLean County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $98,438±$25,554 | $79,905 | no clear change |
| Mean household income | $105,002±$16,518 | $105,003 | – |
| Per capita income | $35,715±$7,810 | $43,372 | no clear change |
| People below the poverty line | 22.1%±16.4 pts | 12.9% | – |
| Children under 18 below the poverty line | 44.6%±28.9 pts | 9.4% | no clear change |
| Households receiving SNAP | 10.0%±6.5 pts | 10.3% | – |
| Households with a computer | 87.5%±8.0 pts | 96.6% | – |
| Households with a broadband subscription | 79.5%±11.2 pts | 90.0% | – |
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 Arrowsmith Township?
Owners occupy 74.5% of Arrowsmith Township's occupied homes and renters 25.5%. The median owner-occupied home is valued at $121,200 by its owner (±$13,934). The median renter pays $1,113 a month including utilities.
| Measure | Arrowsmith Township | McLean County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $121,200±$13,934 | $208,400 | no clear change |
| Median gross rent | $1,113±$60 | $1,009 | −$169 |
| Renters paying 35% or more of income on rent | 6.7%±10.6 pts | 39.1% | – |
| Median monthly owner costs, with a mortgage | $1,151±$68 | $1,673 | – |
| Owner-occupied homes | 74.5%±11.4 pts | 65.1% | no clear change |
| Renter-occupied homes | 25.5%±11.4 pts | 34.9% | – |
| Housing units | 217±53 | 75,305 | no clear change |
| Homeowner vacancy rate | 3.9%±6.4 pts | 0.6% | – |
| Rental vacancy rate | 0.0%±44.6 pts | 5.5% | – |
| Single-family detached homes | 91.2%±9.9 pts | 60.3% | – |
| Mobile homes | 0.0%±15.8 pts | 3.6% | – |
| Built 2020 or later | 0.0%±15.8 pts | 0.9% | – |
| Built 2010 to 2019 | 1.8%±2.2 pts | 6.9% | – |
| Built 1939 or earlier | 56.2%±11.0 pts | 13.8% | – |
| Households with no vehicle | 1.0%±1.4 pts | 5.9% | – |
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 do people in Arrowsmith Township work and get to work?
93.0% of Arrowsmith Township's workers drive alone. The average trip to work takes 26.3 minutes.
| Measure | Arrowsmith Township | McLean County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.9%±10.1 pts | 64.8% | – |
| Unemployment rate | 2.6%±2.8 pts | 3.1% | – |
| Drove alone to work | 93.0%±5.0 pts | 69.1% | – |
| Carpooled | 0.8%±1.6 pts | 7.8% | – |
| Public transportation | 0.0%±13.5 pts | 0.7% | – |
| Walked | 0.0%±13.5 pts | 4.0% | – |
| Worked from home | 6.2%±4.8 pts | 17.5% | – |
| Mean travel time to work | 26.3 min±2.4 | 18.3 min | no clear change |
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 Arrowsmith Township?
No census tract lies mostly in Arrowsmith Township; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 56.02McLean County | 2,226 | $77,500 |
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 Arrowsmith Township) · Census block assignment files
How does Arrowsmith Township compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Arrowsmith Township is the 10,422nd-most populous of the 16,079 U.S. towns and townships that have one and the 1,026th-most populous of 1,407 in Illinois.
Arrowsmith Township is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 1,026th | 1,407 |
Arrowsmith Township's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Arrowsmith 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 Arrowsmith Township?
24 of the 57 figures for Arrowsmith 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 Arrowsmith 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.