County · Illinois
Sangamon County, Illinois
Sangamon County, Illinois. Sangamon County had 194,170 residents in 2025 by the Census Bureau's estimate, down 1.1% since 2020, in line with Illinois (−0.8%). It holds 52 places (26 cities, villages and boroughs and 26 towns and townships) and 54 census tracts. GEOID 17167.
Sangamon County is one of the 2 counties of the Springfield, IL metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
194,170
Census Bureau estimate (no margin published)
2020 Census count: 196,343 · ACS 2020-2024: 194,947
Median household income
$75,357
±$1,749 (90% margin)
Illinois: $83,390
Median home value
$176,300
±$4,624 (90% margin)
Illinois: $263,300
Median gross rent
$983
±$18 (90% margin)
Illinois: $1,274
How many people live in Sangamon County, and is it growing?
The 2020 Census counted 196,343 residents in Sangamon County. The Census Bureau estimates 194,170 for July 1, 2025, down 1.1% since 2020, in line with Illinois (−0.8%). The 2020-2024 American Community Survey puts the population at 194,947 over 868 square miles of land.
| Measure | Sangamon County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Total population | 194,947 | 12,694,798 | −1,914 |
| Households | 84,762±732 | 5,036,449 | +1,051 |
| Average household size | 2.25±0.02 | 2.46 | −0.05 |
| Housing units | 93,382±103 | 5,457,452 | +1,645 |
Sangamon County's population since 2000
From 188,951 in 2000 to 194,170 in 2025: up 2.8%. The 2000, 2010 and 2020 figures are census counts. 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); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Sangamon County?
Sangamon County holds 52 places: 26 cities, villages and boroughs (incorporated places) and 26 towns and townships (county subdivisions with their own government). The largest is Springfield with 112,989 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Springfield | 114,394 | $66,064 |
|---|---|---|
| Capital Township | 112,219 | $65,902 |
| Chatham | 14,377 | $106,773 |
| Woodside Township | 11,688 | $73,007 |
| Chatham Township | 8,399 | $88,959 |
| Clear Lake Township | 8,348 | $86,473 |
| Ball Township | 7,520 | $140,753 |
| Auburn Township, Sangamon County | 5,957 | $81,179 |
| Fancy Creek Township | 5,836 | $145,385 |
| Springfield Township | 5,813 | $39,507 |
| Rochester Township | 5,530 | $114,551 |
| Sherman | 4,673 | $148,906 |
| Gardner Township | 4,637 | $103,932 |
| Auburn | 4,574 | $81,411 |
| Rochester | 3,863 | $117,118 |
| Riverton | 3,532 | $80,920 |
| Williams Township | 3,451 | $125,583 |
| Pawnee Township | 2,991 | $79,150 |
| Pawnee | 2,678 | $81,103 |
| Mechanicsburg Township | 2,305 | $74,453 |
| Jerome | 1,692 | $65,189 |
| New Berlin Township | 1,609 | $67,310 |
| Southern View | 1,596 | $57,270 |
| Curran Township | 1,566 | $102,857 |
| Cartwright Township | 1,518 | $100,982 |
| Leland Grove | 1,454 | $130,833 |
| Divernon Township | 1,434 | $76,971 |
| Williamsville | 1,425 | $106,731 |
| Grandview | 1,405 | $48,819 |
| New Berlin | 1,381 | $70,179 |
| Illiopolis Township | 1,212 | $83,000 |
| Divernon | 1,139 | $71,750 |
| Loami Township | 1,109 | $73,125 |
| Cotton Hill TownshipGEOID 1716716574 | 984 | $95,179 |
| Cooper TownshipGEOID 1716716223 | 898 | $136,354 |
| Illiopolis | 846 | $63,125 |
| Loami | 812 | $57,813 |
| Pleasant Plains | 808 | $89,643 |
| Spaulding | 801 | $105,114 |
| Mechanicsburg | 662 | $93,125 |
| Thayer | 632 | $62,083 |
| Island Grove TownshipGEOID 1716737881 | 549 | $95,208 |
| Dawson | 519 | $76,339 |
| Buffalo | 447 | $56,250 |
| Maxwell TownshipGEOID 1716747618 | 219 | not published |
| CurranGEOID 1718147 | 213 | $53,750 |
| Lanesville TownshipGEOID 1716741976 | 212 | not published |
| Buffalo Hart TownshipGEOID 1716709486 | 178 | $93,646 |
| Talkington TownshipGEOID 1716774340 | 161 | $188,000 |
| Virden | 3,231 | $80,577 |
| CantrallGEOID 1711033 | 144 | $87,500 |
| BerlinGEOID 1705443 | 141 | $66,250 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Sangamon County?
The median resident of Sangamon County is 41.0 years old; 21.9% are under 18 and 19.4% are 65 or older. The largest group is non-Hispanic white residents at 77.3%, then non-Hispanic Black residents at 12.5%. 3.6% of residents were born outside the United States.
| Measure | Sangamon County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.0±0.2 | 39.0 | +0.7 |
| Under 18 years | 21.9%±0.1 pts | 21.8% | – |
| 65 years and over | 19.4%±0.1 pts | 17.0% | – |
| Hispanic or Latino (any race) | 2.9% | 18.8% | +0.6 pts |
| White alone, not Hispanic | 77.3%±0.3 pts | 58.1% | −3.0 pts |
| Black or African American alone, not Hispanic | 12.5%±0.6 pts | 13.3% | no clear change |
| Asian alone, not Hispanic | 2.3%±0.2 pts | 5.9% | +0.3 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.3%±0.5 pts | 3.4% | – |
| Some other race alone, not Hispanic | 0.5%±0.4 pts | 0.4% | – |
| Born outside the United States | 3.6%±0.3 pts | 14.7% | +0.4 pts |
| Speak a language other than English at home (age 5+) | 4.8%±0.4 pts | 24.0% | – |
| Civilian veterans (age 18+) | 6.6%±0.5 pts | 4.8% | – |
| With a disability | 13.6%±0.6 pts | 12.1% | – |
| No health insurance coverage | 3.6%±0.4 pts | 6.9% | no clear change |
| High school graduate or higher (age 25+) | 94.1%±0.5 pts | 90.5% | – |
| Bachelor's degree or higher (age 25+) | 36.6%±1.1 pts | 37.8% | +2.1 pts |
| Graduate or professional degree (age 25+) | 14.8%±0.7 pts | 15.3% | – |
| Moved from another state in the past year | 1.2%±0.2 pts | 1.6% | – |
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 Sangamon County earn?
Half of Sangamon County's 84,762 households earn less than $75,357 a year (±$1,749), against $83,390 in Illinois. In 2015-2019 it was $76,195 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.1% of residents live below the poverty line.
| Measure | Sangamon County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $75,357±$1,749 | $83,390 | no clear change |
| Mean household income | $100,226±$2,239 | $115,638 | – |
| Per capita income | $44,151±$904 | $46,406 | no clear change |
| People below the poverty line | 13.1%±1.0 pts | 11.8% | −1.4 pts |
| Children under 18 below the poverty line | 17.8%±2.5 pts | 15.1% | −5.2 pts |
| Households receiving SNAP | 15.5%±0.9 pts | 13.8% | – |
| Households with a broadband subscription | 90.6%±0.9 pts | 90.8% | – |
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 Sangamon County?
Owners occupy 71.3% of Sangamon County's occupied homes and renters 28.7%. The median owner-occupied home is valued at $176,300 by its owner (±$4,624). The median renter pays $983 a month including utilities, and 37.1% of renters pay 35% or more of their income on rent.
| Measure | Sangamon County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $176,300±$4,624 | $263,300 | no clear change |
| Median gross rent | $983±$18 | $1,274 | −$26 |
| Renters paying 35% or more of income on rent | 37.1%±2.5 pts | 39.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,494±$29 | $1,987 | – |
| Owner-occupied homes | 71.3%±1.2 pts | 67.1% | +2.4 pts |
| Housing units | 93,382±103 | 5,457,452 | +1,645 |
| Homeowner vacancy rate | 1.0%±0.3 pts | 1.0% | – |
| Rental vacancy rate | 10.9%±1.6 pts | 5.0% | – |
| Single-family detached homes | 72.5%±0.9 pts | 58.2% | – |
| Mobile homes | 3.9%±0.5 pts | 2.3% | – |
| Built 2020 or later | 0.4%±0.1 pts | 0.7% | – |
| Built 1939 or earlier | 15.5%±0.7 pts | 20.2% | – |
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 Sangamon County building?
Builders took permits for 224 new housing units across Sangamon County in 2025 (180 single-family), 1.2 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Sangamon County get to work?
77.1% of Sangamon County's workers drive alone and 13.7% work from home. The average trip to work takes 19.7 minutes. The unemployment rate in 2020-2024 averaged 5.4%.
| Measure | Sangamon County | Illinois | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.2%±0.9 pts | 65.0% | – |
| Unemployment rate | 5.4%±0.7 pts | 5.8% | no clear change |
| Drove alone to work | 77.1%±1.2 pts | 65.9% | – |
| Carpooled | 5.6%±0.6 pts | 7.8% | – |
| Public transportation | 0.9%±0.2 pts | 5.8% | – |
| Walked | 1.4%±0.3 pts | 2.8% | – |
| Worked from home | 13.7%±1.0 pts | 15.9% | +9.5 pts |
| Mean travel time to work | 19.7 min±0.6 | 27.8 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 are Sangamon County's census tracts?
Sangamon County is divided into 54 census tracts. Among those with a reliable estimate, median household income runs from $21,358 (Tract 9) to $151,212 (Tract 36.03).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Sangamon County compare with Illinois's other counties?
| Measure | Rank |
|---|---|
| Population | 11th of 102 |
| Growth 2020-2025 | 30th of 102 |
| Residents per square mile | 13th of 102 |
| Median household income | 25th of 102 |
| Median home value | 24th of 102 |
| Median gross rent | 20th of 102 |
| Poverty rate | 46th of 102 |
| Bachelor's degree or higher | 10th of 102 |
| Median age | 70th of 102 |
Source: PlainCities ranks 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 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 Sangamon County 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.