RANKING · 2024 ACS · 14 SHOWN OF 14

Youngest by median age, Massachusetts counties

Massachusetts counties with the youngest median age (2023 ACS). This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Suffolk County, MAMA791,89133.9+7%

02Hampshire County, MAMA164,06537.4+9%

03Middlesex County, MAMA1,669,97938.9+7%

04Hampden County, MAMA464,33840.0+10%

05Worcester County, MAMA888,50240.2+11%

06Bristol County, MAMA593,64040.9+11%

07Norfolk County, MAMA739,74940.9+7%

08Essex County, MAMA826,65341.2+10%

09Nantucket County, MAMA14,75842.4+16%

10Plymouth County, MAMA546,82943.0+17%

11Franklin County, MAMA70,69847.2+19%

12Berkshire County, MAMA128,22447.3+17%

13Dukes County, MAMA21,21950.7+25%

14Barnstable County, MAMA233,53955.4+24%

SHOWING 1–14 OF 14

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES