Sangamon County IL Information


Sangamon County Subdivisions

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  1. Sangamon County 2018 Demographic Data
  2. Growth Rates forSangamon County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2018 Demographics

Sangamon County IL Data & Demographics (As of July 1, 2018)


Total Population 199,462
Population in Households 195,550
Population in Familes 151,850
Population in Group Qrtrs 3,912
Population Density2 230
Diversity Index3 35


Median Household Income $56,325
Average Household Income $77,396
Per Capita Income $33,205


Total Housing Units 92,037 (100%)
Owner Occupied HU 61,052 (66.3%)
Renter Occupied HU 23,157 (25.2%)
Vacant Housing Units 7,828 ( 8.5%)
Median Home Value $128,175
Average Home Value $159,232


Total Households 84,209
Average Household Size 2.32
Family Households 51,275
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 0.12% -0.04%
Households 0.18% -0.01%
Families -0.02% -0.14%
Median Household Income   1.33%
Per Capita Income   2.06%


Sangamon County IL - Peer Comparisons by Rank and Percentile

The table below compares Sangamon County to the other 102 counties and county equivalents in Illinois by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 11 90th
Population Density # 13 88th
Diversity Index # 25 76th
Median Household Income # 21 80th
Per Capita Income # 11 90th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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Illinois Census Data Comparison Tool

Compare Illinois July 1, 2018 Data
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