Decatur

City in Macon County, Illinois

View of Decatur, Illinois
Photo: Gil Lebois · CC0

Decatur is a city in Macon County, Illinois, with 70,522 residents (2020 Census). It sits at 676 ft (206 m) above sea level. The nearest town is Forsyth, 5.1 miles N.

About Decatur

Decatur ( dih-KAY-tər) is the largest city in Macon County, Illinois, United States, and its county seat. The city was founded in 1829 and is situated along the Sangamon River and Lake Decatur in Central Illinois. As of the 2020 census, it had a population of 70,522. It is the 17th-most populous city in Illinois and the "fastest shrinking city" in Illinois. Decatur has an economy based on industrial and agricultural commodity processing and production. The city is home to Millikin University and Richland Community College.

Text: Wikipedia · CC BY-SA 4.0

Decatur weather: 7-day forecast

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Source: National Weather Service (NOAA).

Nearest webcams to Decatur

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Webcams: Windy.com

Living in Decatur

Median household income
$51,592
Median home value
$99,600
Median rent
$845/mo
Median age
39.2
Cost of living and demographics of Decatur ›

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Map of Decatur

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Decatur Street View

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Decatur, IL population

Decatur had 70,522 residents in the 2020 Census.

2020 Census70,522
Density1,597 per sq mi (617 per km²)

Source: U.S. Census Bureau, Decennial Census.

Decatur at a glance

StateIllinois (IL)
CountyMacon County
TypeCity
Population70,522 (2020)
Land area44.16 sq mi (114.4 km²)
Water area4.70 sq mi (12.18 km²)
Elevation676 ft (206 m)
Coordinates39.8560° N, 88.9337° W
ZIP codes62523, 62521, 62526
Official websiteci.decatur.il.us
Census code (GEOID)1718823

Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.

Towns near Decatur

Straight-line distance between town centers.

Frequently asked questions about Decatur

What county is Decatur in?

Decatur is in Macon County, Illinois.

What is the population of Decatur, IL?

70,522 people lived in Decatur at the 2020 Census.

What is the ZIP code of Decatur, IL?

The main ZIP code is 62523. Other ZIP codes: 62521, 62526.

What is the elevation of Decatur?

676 feet (206 m) above sea level.

What towns are near Decatur?

Forsyth (5.1 mi), Mount Zion (5.6 mi), Long Creek (5.8 mi), Elwin (6.0 mi), Oreana (6.6 mi).

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