City rankings

Youngest Cities in Illinois

North Chicago ranks #1 in Illinois for youngest cities at 23.2 yrs.

This ranking orders all 50 qualifying Illinois cities by median age, computed directly from the U.S. Census Bureau's American Community Survey and CDC PLACES datasets, never a blended or proprietary score. It is one of 9 single-metric rankings Areazine publishes for Illinois, each answering one direct question from official federal data. Compare North Chicago's standing against every other Illinois city ranked below.

50
Cities ranked
23.2 yrs
#1 North Chicago
36.7 yrs
Lowest, Elgin

What this Illinois ranking shows

According to the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, the CDC PLACES population-level health analysis, and the CMS Hospital Compare quality data, Areazine ranks U.S. cities across more than 19,000 incorporated places, census-designated places, and consolidated city-county governments. State-level city rankings combine these federal datasets to produce intra-state comparisons across demographics, economics, health outcomes, and hospital quality.

North Chicago leads 50 Illinois cities at 23.2 yrs, while Elgin sits at the bottom with 36.7 yrs - a total spread of 13.5 yrs on median age. The top 5 occupy 21% of that range, indicating a moderate distribution with meaningful steps between rungs.

The median Illinois city in this list sits at 35.3 yrs, 12.1 yrs behind North Chicago. See our methodology for ranking construction, data vintage, refresh cadence, and the federal upstream tables we join, and triangulate via the 8 other Illinois rankings below, cities that lead on multiple lenses are the most robust signals.

Top 5 - Youngest Cities

Top 5 Illinois cities ranked by median age
Rank City median age Population
#1 North Chicago 23.2 yrs 29K
#2 Carbondale 24.6 yrs 26K
#3 Normal 25.0 yrs 54K
#4 DeKalb 26.1 yrs 43K
#5 Urbana 26.1 yrs 42K

Does median age track with city size?

Youngest Cities vs. population, top 25 ranked cities

Source: U.S. Census Bureau (population), median age per methodology 2×2 strategic matrix plotting 25 entities by Population (X) and median age (Y), with a crosshair dividing the plot into four quadrants. Large & highSmall & highLarge & lowSmall & low 050,000100,000150,000200,000250,000 2025303540 Population median age Youngest Cities vs. population, top 25 ranked cities
Source: U.S. Census Bureau (population), median age per methodology

Youngest Cities 50

More Illinois Rankings 8

Reading this Illinois ranking responsibly

Single-metric rankings are useful precisely because they are honest about what they measure. A "highest income" ranking does not tell you that the top-ranked city is the best place to live in Illinois; it tells you that, among cities of population ten thousand and above in Illinois that have a published median household income field in the most recent American Community Survey five-year estimates, this city has the highest such value. That precise definition matters, because composite "best places" lists from real-estate marketing sites and lifestyle magazines often combine income with subjective weights on schools, walkability, and amenities, producing a score whose components are not disclosed and whose ordering is not reproducible. Areazine's editorial commitment is to keep the underlying field, source, and vintage visible so the reader can audit any rank in this list against the canonical federal record.

Cross-checking against other rankings is a useful sanity test. A city that appears in the top ten on three or more different rankings, for example, highest income, most educated, and lowest poverty, is showing a robust signal across multiple independent dimensions. A city that appears in the top ten on only one ranking and middling on the others is showing a narrower signal, often driven by a single statistical artifact (a small population pulling the per-capita measure, a recent acquisition spike inflating median home value, an outlier survey year). The other nine Illinois rankings linked above provide that cross-check at zero extra effort.

Data Sources

Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates). Health data from the CDC PLACES (2023). Ranking computations use U.S. Census Bureau reference geographies. Crime statistics, where referenced, originate from the FBI Uniform Crime Reporting program (also accessible via the Crime Data Explorer).