Illinois · Census place 1759000

Peoria, Illinois

Peoria is a city in Peoria County, Illinois with an estimated 111,696 residents on July 1, 2024. It is the 8th largest of 651 incorporated places of 1,000+ people in the state.

Population 2024
111,696
#8 of 651 in Illinois
Change since 2020
-1.1%
-1,246 people
Land area
48.1 sq mi
+ 2.58 sq mi water
Density
2,321 / sq mi
State median 2,177
Orange pin: Peoria. Shaded: its county. Dark pin: Springfield.

Peoria population, 2020 to 2024

Peoria lost 1,246 residents from July 2020 to July 2024, a change of -1.1%. In the latest year it moved by +501. Among 330 Illinois places of 5,000 or more, that growth ranks 173rd; the median place changed by -0.9%. The median place of 5,000+ in Illinois has 14,760 people, so Peoria is 7.6 times that size.

112.9k2020111.9k2021111.1k2022111.2k2023111.7k2024
July 1 estimates. The April 2020 estimates base was 113,264. The axis starts above zero so yearly changes are visible.

Peoria covers 48.13 square miles of land and 2.58 of water, for 2,321 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Peoria is close to the typical town.

What county Peoria is in

All of Peoria's residents live in Peoria County, which had 179,630 residents in 2024. Peoria holds 62.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Peoria

8 ZIP Code Tabulation Areas (ZCTAs) overlap Peoria by at least 10% of the ZCTA's or the city's land: 61602, 61603, 61604, 61605, 61606, 61614, 61615, 61625. 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 Peoria is

The Census internal point of Peoria is at 40.751600, -89.617200. Springfield, the capital, is 67.1 miles S in a straight line. The nearest larger place is Springfield, IL (112,949 people), 66.4 miles away. The ground at the internal point is about 220 m (722 ft) above sea level.

Internal point

Decimal
40.751600, -89.617200
DMS
40°45'5.76"N 89°37'1.92"W
UTM
16N 279053.7E 4514478.3N
Geohash
dp0rbdwer
Plus code
86GGQ92M+J4
Time zone
America/Chicago

Daylight in Peoria

At 40.75° N, Peoria gets about 15 h 06 min of daylight around the June solstice and 9 h 15 min around the December solstice, a swing of 5 h 51 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 Peoria daylight page.

Places near Peoria

The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Peoria Heights, 2.5 miles away, with 5,802 people.

Questions people ask

What is the population of Peoria, IL?

111,696 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 1,246 (1.1%) from 112,942 in July 2020.

What county is Peoria in?

Peoria County. All of its residents live in that county.

What ZIP codes cover Peoria?

8 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 61602, 61603, 61604, 61605, 61606, 61614, 61615, 61625.

How far is Peoria from Springfield?

67.1 miles (108.0 km) in a straight line, heading S from Peoria.

What is the nearest larger city to Peoria?

Springfield, IL, with 112,949 residents, 66.4 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.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)
  5. 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.