RANKING · 2020 CENSUS · 14 SHOWN OF 14

Youngest by median age, Massachusetts counties · 2020

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, MAMA791,89132.3+2%

02Hampshire County, MAMA164,06538.3+11%

03Middlesex County, MAMA1,669,97938.6+6%

04Hampden County, MAMA464,33840.2+10%

05Worcester County, MAMA888,50240.2+11%

06Nantucket County, MAMA14,75840.7+11%

07Norfolk County, MAMA739,74941.2+8%

08Essex County, MAMA826,65341.4+10%

09Bristol County, MAMA593,64041.5+13%

10Plymouth County, MAMA546,82943.5+18%

11Franklin County, MAMA70,69847.0+19%

12Berkshire County, MAMA128,22447.8+18%

13Dukes County, MAMA21,21949.3+21%

14Barnstable County, MAMA233,53955.0+23%

SHOWING 1–14 OF 14

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