Illinois · Census place 1772000
Springfield, Illinois
Springfield is a city in Sangamon County, Illinois with an estimated 112,949 residents on July 1, 2024. It is the 7th largest of 651 incorporated places of 1,000+ people in the state.
- Population 2024
- 112,949
- #7 of 651 in Illinois
- Change since 2020
- -1.2%
- -1,426 people
- Land area
- 61.3 sq mi
- + 6.33 sq mi water
- Density
- 1,844 / sq mi
- State median 2,177
Measure from here
Tools and pages that start from Springfield
Springfield population, 2020 to 2024
Springfield lost 1,426 residents from July 2020 to July 2024, a change of -1.2%. In the latest year it moved by -54. Among 330 Illinois places of 5,000 or more, that growth ranks 182nd; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Springfield is 7.7 times that size.
Springfield covers 61.26 square miles of land and 6.33 of water, for 1,844 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Springfield is less dense than the typical town.
What county Springfield is in
All of Springfield's residents live in Sangamon County, which had 194,345 residents in 2024. Springfield holds 58.1% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Springfield
8 ZIP Code Tabulation Areas (ZCTAs) overlap Springfield by at least 10% of the ZCTA's or the city's land: 62701, 62702, 62703, 62704, 62706, 62707, 62711, 62712. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.
Where Springfield is
The Census internal point of Springfield is at 39.791100, -89.644600. That is next to the Springfield capitol point. The nearest larger place is St. Louis, MO (279,695 people), 86.1 miles away. The nearest city of 100,000 or more is Peoria, IL, 66.4 miles away. The ground at the internal point is about 185 m (607 ft) above sea level.
Internal point
- Decimal
- 39.791100, -89.644600
- DMS
- 39°47'27.96"N 89°38'40.56"W
- UTM
- 16N 273556.6E 4407917.7N
- Geohash
- dp0625dzc
- Plus code
- 86FGQ9R4+C5
- Time zone
- America/Chicago
Daylight in Springfield
At 39.79° N, Springfield gets about 15 h 00 min of daylight around the June solstice and 9 h 21 min around the December solstice, a swing of 5 h 39 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026. Month-by-month sunrise and sunset times are on the Springfield daylight page.
Places near Springfield
The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Leland Grove, 2.3 miles away, with 1,409 people.
Questions people ask
What is the population of Springfield, IL?
112,949 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 1,426 (1.2%) from 114,375 in July 2020.
What county is Springfield in?
Sangamon County. All of its residents live in that county.
What ZIP codes cover Springfield?
8 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 62701, 62702, 62703, 62704, 62706, 62707, 62711, 62712.
How far is Springfield from Springfield?
Springfield's internal point is within about a mile of the Springfield capitol point.
What is the nearest larger city to Springfield?
St. Louis, MO, with 279,695 residents, 86.1 miles away between internal points.
Sources and data as of
Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.
- 01Census Vintage 2024 subcounty population estimates
- 02Census 2024 Gazetteer, places
- 03Census 2020 ZCTA to place relationship file
- 04Census 2024 cartographic boundary file, counties (1:5,000,000)
- 05Open-Meteo forecast API (time zone and Copernicus GLO-90 elevation) (last verified 2026-09-30)
How every number is computed: methodology. Spotted a wrong figure? Report an error.