RANKING · 2020 CENSUS · 14 SHOWN OF 14

Oldest by median age, Massachusetts counties · 2020

Massachusetts counties ranked by median age of residents (2020 ACS). This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide. The median across all 14 is 41.4.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Barnstable County, MAMA233,53955.0+23%

02Dukes County, MAMA21,21949.3+21%

03Berkshire County, MAMA128,22447.8+18%

04Franklin County, MAMA70,69847.0+19%

05Plymouth County, MAMA546,82943.5+18%

06Bristol County, MAMA593,64041.5+13%

07Essex County, MAMA826,65341.4+10%

08Norfolk County, MAMA739,74941.2+8%

09Nantucket County, MAMA14,75840.7+11%

10Hampden County, MAMA464,33840.2+10%

11Worcester County, MAMA888,50240.2+11%

12Middlesex County, MAMA1,669,97938.6+6%

13Hampshire County, MAMA164,06538.3+11%

14Suffolk County, MAMA791,89132.3+2%

SHOWING 1–14 OF 14

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS