RANKING · 2020 CENSUS · 14 SHOWN OF 14

Largest households, Massachusetts counties · 2020

Massachusetts counties ranked by average household size (2020 ACS). This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

MassachusettsAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2010

01Nantucket County, MAMA14,7582.95+14%

02Plymouth County, MAMA546,8292.66−0%

03Essex County, MAMA826,6532.59+2%

04Norfolk County, MAMA739,7492.56+2%

05Worcester County, MAMA888,5022.54−1%

06Middlesex County, MAMA1,669,9792.53+2%

07Hampden County, MAMA464,3382.50−0%

08Bristol County, MAMA593,6402.49−1%

09Dukes County, MAMA21,2192.49−15%

10Suffolk County, MAMA791,8912.41+3%

11Hampshire County, MAMA164,0652.31+0%

12Franklin County, MAMA70,6982.24−3%

13Barnstable County, MAMA233,5392.20+1%

14Berkshire County, MAMA128,2242.17−4%

SHOWING 1–14 OF 14

Download CSV (full list, 14 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS