RANKING · 2010 CENSUS · 500 SHOWN OF 6,642
Youngest by median age, US cities · 2010
US cities with the youngest median age (2023 ACS). Kaser, New York leads at 12.9. 6,642 cities qualify in total. Cities with fewer than 5,000 residents are excluded. New York carries 10 of the top 25 entries.
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RANKPLACESTATEPOPMEDIAN AGEVS 2000
UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which city has the lowest median age?
Kaser, New York ranks #1 with 12.9 (2010 American Community Survey).
What are the top 5 cities by median age?
Kaser, New York, Kiryas Joel, New York, New Square, New York, Monsey, New York, Lakewood, New Jersey.
How many cities are in this ranking?
6,642 cities qualify after filtering for population minimums and data availability (minimum 5,000 residents). The ranking covers 2010 ACS 5-year data.
How is median age measured?
Median age of all residents. Source: US Census Bureau, American Community Survey 5-year estimates (2010).