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US City Data

Youngest Cities in Illinois

Cities ranked by lowest median age · 50 cities · Updated 2026-04-05

This ranking shows the youngest cities in Illinois based on data from the US Census Bureau's American Community Survey (ACS) 5-Year Estimates. All 50 cities are sorted by lowest median age from lowest to highest. Lane leads the ranking with a value of 10.9 years and a population of 145.

The top three cities are Lane (10.9 years), Kings (13.5 years), and Serena (15.4 years). Data is updated nightly from official Census APIs. Click any city name to view its full demographic profile, or see the national youngest cities ranking to compare across all 50 states. You can also explore all cities in Illinois.

RankCityValuePopulation
#1Lane10.9 years145
#2Kings13.5 years322
#3Serena15.4 years195
#4Westervelt15.4 years24
#5Kaskaskia15.9 years34
#6Merritt16.0 years75
#7Elsah20.6 years655
#8Paloma20.6 years104
#9New Salem23.5 years131
#10North Chicago23.6 years30,772
#11Mound Station23.9 years151
#12White Heath24.0 years197
#13Grand Tower24.1 years551
#14Eagarville24.7 years183
#15Carbondale24.9 years21,813
#16Normal25.2 years52,908
#17DeKalb25.4 years40,464
#18Elwin25.8 years33
#19West York25.9 years68
#20Buncombe26.2 years341
#21Scott AFB26.2 years4,195
#22Trilla26.5 years118
#23Henderson26.6 years253
#24Lorenzo26.6 years64
#25Tovey26.6 years707
#26Urbana26.7 years38,447
#27Phillipstown27.0 years46
#28Champaign27.1 years88,822
#29Lockport Heights27.1 years984
#30Cowden27.3 years547
#31Congerville27.4 years723
#32Willow Hill27.6 years266
#33Dixmoor27.7 years2,962
#34Macomb27.7 years15,006
#35Shirley27.7 years73
#36Kinderhook27.9 years245
#37Mount Erie27.9 years133
#38Burnt Prairie28.0 years92
#39Elliott28.0 years265
#40Little York28.2 years357
#41Joppa28.4 years264
#42La Clede28.5 years151
#43Ste. Marie28.5 years266
#44Bowen28.8 years710
#45Charleston28.8 years17,212
#46Bulpitt28.9 years213
#47Custer Park29.0 years426
#48El Dara29.0 years100
#49Industry29.0 years633
#50Brooklyn29.1 years811

Frequently Asked Questions

What city has the youngest in Illinois?

Lane ranks #1 for youngest cities in Illinois with a value of 10.9 years and a population of 145.

How many cities are ranked for youngest cities in Illinois?

There are 50 cities ranked for youngest cities in Illinois. Rankings are based on data from the US Census Bureau's American Community Survey.

How does Illinois compare to other states for youngest cities?

You can compare Illinois's city rankings to other states or view the national ranking at our national youngest cities page, which lists the top 100 cities across all 50 states.

Other Rankings for Illinois

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→ See Youngest Cities nationallyCost of Living in IllinoisAll Illinois Rankings