RANKING · 2000 CENSUS · 14 SHOWN OF 14

Youngest by median age, Massachusetts counties · 2000

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, MAMA791,89131.7+0%

02Hampshire County, MAMA164,06534.4+0%

03Worcester County, MAMA888,50236.3+0%

04Hampden County, MAMA464,33836.4+0%

05Middlesex County, MAMA1,669,97936.4+0%

06Bristol County, MAMA593,64036.7+0%

07Nantucket County, MAMA14,75836.7+0%

08Plymouth County, MAMA546,82936.8+0%

09Essex County, MAMA826,65337.5+0%

10Norfolk County, MAMA739,74938.1+0%

11Franklin County, MAMA70,69839.5+0%

12Berkshire County, MAMA128,22440.5+0%

13Dukes County, MAMA21,21940.7+0%

14Barnstable County, MAMA233,53944.6+0%

SHOWING 1–14 OF 14

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