COUNTY
Sangamon County
Illinois · 194,170 residents (2025 est.) · 868 sq mi
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The short version
Sangamon County is home to 194,947 people in Illinois. Few US counties rank higher on income. The typical home is worth $176,300, having more than doubled since 2000. The foreign-born share is 4%. Getting to work takes 20 minutes on average. Median rent is $983 a month.
At a glance
Lower income
median household income $75,357, below the US median
US median: $82,259
Older
median age 41.0
US median: 38.9
Average education
37% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Sangamon County
What changed most since 1990
- Median home value (2024 dollars)$144,724 → $176,300 (+22%)US over the same years: +67%
Among the 102 counties in Illinois
- 25th in household income$75,357
- 10th in share with a bachelor's degree36.6%
- 24th in home value$176,300
- 24th in diversity score47.8
Section 01
Population & growth
194,947
+3%since 2000
from 188,951 in 2000
194,170 in 2025 (Census Bureau estimate)
1990 – 2025
Land area
868 sq mi
Population, 1990 – 2024
2024195K
Age distribution, 2024
Under 55.6%(10,846)
5 to 96%(11,629)
10 to 146.3%(12,323)
15 to 196.3%(12,194)
20 to 245.8%(11,316)
25 to 3412.1%(23,632)
35 to 4412.9%(25,126)
45 to 5412.1%(23,583)
55 to 6413.6%(26,449)
65 to 7411.5%(22,514)
75 to 845.6%(10,950)
85 and over2.2%(4,385)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$75,357
−4%inflation adjusted, since 2000
from $42,957 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
50.2%
+18.7 ptssince 2009
from 31.5% in 2009
US average: 53.3%
Workforce by industry, 2024
Information9.5%
Other services6.9%
Public administration5.8%
Retail trade5.6%
Finance & insurance4.6%
Wholesale trade4.4%
Professional, scientific, technical3.6%
Transportation & warehousing1.8%
Agriculture, forestry, fishing1.3%
Arts, entertainment, food1.2%
Construction1.2%
Education & health services1%
Manufacturing0.1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$176,300
+10%inflation adjusted, since 2000
from $87,600 in 2000
US average: $376,019
1990 – 2024
2.3
+4%since 2009
from 2.2 in 2009
1990 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
31
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity
2000
White, non-Hispanic86.8%(163,967)
Black9.6%(18,134)
Hispanic / Latino1.1%(2,000)
Asian1.1%(2,067)
Other0%
2024
White, non-Hispanic77.3%(150,779)
Black12.5%(24,441)
Hispanic / Latino2.9%(5,721)
Asian2.3%(4,401)
Other4.9%(9,605)
48
+42%since 2009
from 34 in 2009
1990 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
38
−10%since 2020
from 42 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Mexican1.3%(2,557)
Puerto Rican0.5%(899)
South American0.4%(780)
Central American0.3%(551)
Colombian0.2%(475)
Honduran0.2%(313)
Venezuelan0.1%(169)
Cuban0.1%(107)
Dominican0.1%(104)
Nicaraguan0.1%(103)
Spaniard0%(88)
Panamanian0%(85)
+ 7 more hispanic origin groups with data
Chilean0%(46)
Ecuadorian0%(37)
Argentine0%(32)
Salvadoran0%(30)
Guatemalan0%(20)
Bolivian0%(11)
Peruvian0%(10)
Asian origin
Asian Indian0.8%(1,559)
Filipino0.5%(905)
Chinese0.3%(642)
Korean0.1%(287)
Vietnamese0.1%(249)
Nepalese0.1%(184)
Japanese0.1%(152)
Taiwanese0.1%(117)
Pakistani0.1%(117)
Kazakh0%(64)
Cambodian0%(43)
Laotian0%(27)
+ 6 more asian origin groups with data
Ancestry
German20.7%(40,274)
English12.5%(24,421)
Irish12.4%(24,126)
American5%(9,739)
Italian4.5%(8,847)
Polish2%(3,993)
Scottish1.9%(3,698)
French1.8%(3,599)
Subsaharan African1.2%(2,242)
Dutch1.1%(2,166)
Swedish1.1%(2,073)
Scotch-Irish0.9%(1,819)
+ 44 more ancestry groups with data
Norwegian0.8%(1,590)
Welsh0.6%(1,202)
Lithuanian0.5%(1,053)
Nigerian0.4%(751)
Swiss0.4%(732)
Slovak0.4%(718)
British0.3%(676)
Portuguese0.3%(663)
Hungarian0.3%(581)
Arab0.3%(572)
Austrian0.2%(420)
Czech0.2%(415)
Russian0.2%(367)
Danish0.2%(340)
Greek0.2%(323)
West Indian0.2%(307)
Lebanese0.1%(272)
Croatian0.1%(241)
French Canadian0.1%(180)
Ukrainian0.1%(151)
Haitian0.1%(127)
Jamaican0.1%(126)
Finnish0.1%(120)
Canadian0.1%(119)
Slovene0.1%(105)
Belgian0.1%(98)
Armenian0%(67)
Iranian0%(58)
Israeli0%(53)
Brazilian0%(46)
Romanian0%(44)
Latvian0%(40)
Macedonian0%(34)
Turkish0%(34)
Australian0%(31)
Serbian0%(30)
Palestinian0%(25)
Ethiopian0%(21)
Egyptian0%(19)
Jordanian0%(19)
Moroccan0%(19)
Ghanaian0%(18)
Kenyan0%(10)
Somali0%(6)
Section 05
Education
High school or higher
94.1%
+6.1 ptssince 2000
from 88.1% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
76.6%
−0.8 ptssince 2020
from 77.4% in 2020
US average: 74.6%
Section 08
People & community
Computer in household
95.4%
+4.8 ptssince 2020
from 90.6% in 2020
US average: 95.5%
Marital status
Men 15+
Never married36%(27,395)
Married49.7%(37,846)
Widowed3.3%(2,510)
Divorced11.1%(8,448)
Women 15+
Never married31.3%(26,237)
Married44.8%(37,609)
Widowed9.3%(7,787)
Divorced14.7%(12,317)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage
Direct-purchase
11.7%
−0.9 ptssince 2020
from 12.6% in 2020
US average: 13.8%
VA health care
1.9%
−0.2 ptssince 2020
from 2.1% in 2020
US average: 2.2%
Any private
73.1%
−1.6 ptssince 2020
from 74.7% in 2020
US average: 67.1%
Any public
39.0%
+1.9 ptssince 2020
from 37.1% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)22.2%(2,209)
Gulf War (1990s)20.3%(2,024)
Vietnam era36.8%(3,664)
Korean War4.2%(414)
World War II1.6%(155)
Share of the 9,968 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Sangamon County, decade by decade
| Year | Population | Median household income | Median home value | Bachelor's degree+ | Diversity score |
|---|---|---|---|---|---|
| 1990 | 178,386 | $72,842 | $144,724 | 22.4% | 22.0 |
| 2000 | 188,951 | $78,253 | $159,577 | 28.6% | 29.7 |
| 2010 | 197,465 | $75,139 | $171,046 | 31.0% | 38.0 |
| 2020 | 196,343 | $74,835 | $174,655 | 34.1% | 49.2 |
| 2024 | 194,947 | $75,357 | $176,300 | 36.6% | 47.8 |
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
Drill deeper
Places similar to Sangamon County
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Pop 204,479
Shasta County
Pop 181,648
Hawaii County
Pop 210,043
Indian River County
Pop 172,799
Places similar to Sangamon CountyHead to head
Compare Sangamon County to nearby counties
SANGAMON COUNTY VS
Menard County
Income$82,176+9%
Home value$185,500+5%
Population11,863−94%
SEE FULL COMPARISON →
SANGAMON COUNTY VS
Christian County
Income$62,611−17%
Home value$115,500−34%
Population33,443−83%
SEE FULL COMPARISON →
SANGAMON COUNTY VS
Morgan County
Income$66,306−12%
Home value$130,800−26%
Population32,515−83%
SEE FULL COMPARISON →
SANGAMON COUNTY VS
Logan County
Income$66,358−12%
Home value$134,400−24%
Population27,182−86%
SEE FULL COMPARISON →
Frequently asked
How many people live in Sangamon County, Illinois?
Sangamon County, Illinois has about 194,947 residents according to the 2024 American Community Survey.
What is the median household income in Sangamon County, Illinois?
The typical household in Sangamon County, Illinois earns about $75,357 a year. Half of households make more than that, and half make less.
Is Sangamon County, Illinois expensive?
In Sangamon County, Illinois, the median home is worth about $176,300, and the typical rent is about $983 a month.
How educated are people in Sangamon County, Illinois?
About 36.6% of adults age 25 and over in Sangamon County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Sangamon County, Illinois?
About 13.1% of people in Sangamon County, Illinois live below the federal poverty line.
Has Sangamon County, Illinois grown since 1990?
Yes, Sangamon County, Illinois has grown since 1990. The population has added about 16,561 residents, a change of about 9 percent over that period.
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54 census tracts (top 20 by population)
Census Tract 31Census Tract 32.03Census Tract 38.02Census Tract 30Census Tract 25Census Tract 36.03Census Tract 34Census Tract 36.04Census Tract 39.01Census Tract 29Census Tract 33Census Tract 32.02Census Tract 36.02Census Tract 10.04Census Tract 35Census Tract 32.01Census Tract 6Census Tract 40Census Tract 37.01Census Tract 37.0226 ZIP codes
ZIP 62704ZIP 62702ZIP 62703ZIP 62711ZIP 62629ZIP 62712ZIP 62707ZIP 62563ZIP 62684ZIP 62615ZIP 62561ZIP 62558ZIP 62670ZIP 62677ZIP 62693ZIP 62520ZIP 62530ZIP 62539ZIP 62661ZIP 62701ZIP 62545ZIP 62536ZIP 62625ZIP 62515ZIP 62689ZIP 62706Up the hierarchy
All counties in IllinoisDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024