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Decatur (IL) Streets, Geographical, Population & More

W Main St
E Main St
E Wood St
PO Box
W Wood St
E Prairie St
N Monroe St
W Center St
E Cantrell St
W Forest Ave
N Summit Ave
W Macon St
N Church St
E William St
E Clay St
W Decatur St
E Division St
E Decatur St
E North St
W William St
E Fitzgerald Rd
W Riverview Ave
E Johns Ave
N Country Club Rd
N Edward St
N Main St
W Marietta St
W Division St
N Taylor Ave
W Waggoner St

Population of Decatur, Illinois

StateIllinois
Land Area (mi²)42.3 sq mi
Density (mi²)1,639.9/sq mi
2022 Growth Rate-0.8% (-560)
Growth Since 2020-3.42% (-2455)
Rank in State17th
Rank in Country584th

The population of Decatur, IL in 2022 is estimated to be 69,402. This is a decrease of -0.8% (-560 people) compared to the population in 2021.

Population in Metro Area of Decatur by Year

2021 and 2022 population is estimated by projecting the 2019 numbers.

YearPopulationGrowthGrowth Rate

Population of Decatur by Race

Population by Race
  • Total
  • Hispanic
  • Non-Hispanic
Race
Population
Percentage

Population of Decatur by Age

Decatur Population Pyramid 2022
Decatur Median Age
39.8
Total
37.7
Male
41.2
Female
Decatur Sex Ratio
46.63%
33,508
Male
53.37%
38,349
Female
Decatur Age Dependency Ratio
34.5
Old Age Dependency Ratio
35.8
Child Dependency Ratio
Decatur Adults
56,753
Adults
(14,556 of whom are seniors) in Decatur.

Population of Decatur by Year

Year
PopulationGrowthAnnual Growth Rate
Streets