COUNTY · 1990 CENSUS
Sangamon County
Illinois · 178,386 residents · 868.23 sq mi
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Part of the Springfield metro area
The short version
Sangamon County has roughly average household income, with a median household income of $30,350. Population has declined 6% since 2000. Median home value is $60,300.
At a glance
Average income
near the US median
US median: $30,130
Mid-age
median age 34.3
US median: 33.0
More educated
22% hold a bachelor's degree
US average: 20%
More affordable
home values down 9%, inflation adjusted
US median home: $93,722
Section 01
Population & growth
Population, 1990 – 2024
2024195K
Age distribution, 1990
Under 57.1%(12,724)
5 to 97.5%(13,431)
10 to 147%(12,445)
15 to 196.3%(11,222)
20 to 246.1%(10,878)
25 to 3417.2%(30,734)
35 to 4416.3%(29,063)
45 to 5410.1%(18,035)
55 to 648.6%(15,411)
65 to 747.5%(13,297)
75 to 844.8%(8,570)
85 and over1.4%(2,576)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$30,350
−7%inflation adjusted, since 2000
vs $42,957 in 2000
US average: $30,130
1990 – 2024
Section 03
Housing
$60,300
−9%inflation adjusted, since 2000
vs $87,600 in 2000
US average: $93,722
1990 – 2024
RELATED:See current rent listings in Sangamon County on RentDataNow
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%
1990
White, non-Hispanic90.9%(162,073)
Black8.1%(14,413)
Hispanic / Latino0.6%(1,125)
Asian0.7%(1,301)
Other0.3%(599)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry
Detailed origin tables are available for 2024; showing 2024 data.
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
81.8%
−6.3 ptsvs 2000
vs 88.1% in 2000
US average: 75.2%
Section 06
Commute & transportation
Section 07
Work & employment
No data for the years selected.
Section 08
People & community
No data for the years selected.
Marital status (2024)
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
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Compare Sangamon County to nearby counties
SANGAMON COUNTY VS
Menard County
Income$82,176+171%
Home value$185,500+208%
Population11,863−94%
SEE FULL COMPARISON →
SANGAMON COUNTY VS
Christian County
Income$62,611+106%
Home value$115,500+92%
Population33,443−83%
SEE FULL COMPARISON →
SANGAMON COUNTY VS
Morgan County
Income$66,306+118%
Home value$130,800+117%
Population32,515−83%
SEE FULL COMPARISON →
SANGAMON COUNTY VS
Logan County
Income$66,358+119%
Home value$134,400+123%
Population27,182−86%
SEE FULL COMPARISON →
Frequently asked
How many people live in Sangamon County, Illinois?
Sangamon County, Illinois has about 178,386 residents according to the 1990 Census.
What is the median household income in Sangamon County, Illinois?
The typical household in Sangamon County, Illinois earns about $30,350 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 $60,300, and the typical rent is about $382 a month.
How educated are people in Sangamon County, Illinois?
About 22.4% 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 9.9% of people in Sangamon County, Illinois live below the federal poverty line.
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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