Springfield, IL Profile: Facts & Data


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Springfield, Illinois - Basic Facts

The City of Springfield is the 6th largest city in Illinois with a population of 115,611 as of July 1, 2018. Springfield ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Springfield is located at latitude 39.7911 and longitude -89.6446 in Sangamon County. The formal boundaries for the City of Springfield (see map below) encompass a land area of 59.63 sq. miles and a water area of 6.28 sq. miles. Sangamon County is in the Central time zone (GMT -6). The elevation is 600 feet.

The City of Springfield (GNIS ID: 2395940) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Springfield is located within Township of Capital, a minor civil division (MCD) of Sangamon County.

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  1. Springfield 2018 Demographic Data
  2. Growth Rates for Springfield (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

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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


Total Population 115,611
Population in Households 112,250
Population in Familes 82,249
Population in Group Qrtrs 3,361
Population Density2 1,939
Diversity Index3 45


Median Household Income $50,011
Average Household Income $71,988
Per Capita Income $32,360


Total Housing Units 56,451 (100%)
Owner Occupied HU 33,367 (59.1%)
Renter Occupied HU 17,322 (30.7%)
Vacant Housing Units 5,762 (10.2%)
Median Home Value $119,088
Average Home Value $151,471


Total Households 50,689
Average Household Size 2.21
Family Households 27,812
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 -0.03% -0.11%
Households 0.03% -0.08%
Families -0.24% -0.26%
Median Household Income   1.03%
Per Capita Income   1.96%

Springfield, IL - Peer Comparisons by Rank and Percentile

The table below compares Springfield to the other 1,368 incorporated cities, towns and CDPs 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 # 6 100th
Population Density # 286 79th
Diversity Index # 215 84th
Median Household Income # 884 35th
Per Capita Income # 360 74th

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

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