RANKING · 2020 CENSUS · 24 SHOWN OF 24

Largest households, Maryland counties · 2020

Maryland counties ranked by average household size (2023 ACS). This list covers the 24 counties in Maryland that qualify, ranked against each other statewide.

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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 2000

01Prince George's County, MDMD970,3742.83–

02Calvert County, MDMD94,4842.81–

03Montgomery County, MDMD1,074,5822.79–

04Charles County, MDMD176,5932.78–

05Howard County, MDMD339,1832.75–

06Cecil County, MDMD107,1312.72–

07Caroline County, MDMD34,1162.69–

08Carroll County, MDMD176,6772.69–

09St. Mary's County, MDMD116,6922.67–

10Frederick County, MDMD302,8832.66–

11Harford County, MDMD266,4462.65–

12Anne Arundel County, MDMD603,3802.62–

13Queen Anne's County, MDMD54,4482.61–

14Wicomico County, MDMD106,8992.60–

15Baltimore County, MDMD847,6502.56–

16Washington County, MDMD157,7312.51–

17Baltimore, MDMD569,9972.39–

18Dorchester County, MDMD33,6282.34–

19Somerset County, MDMD24,9732.31–

20Allegany County, MDMD66,8482.28–

21Worcester County, MDMD54,4592.26–

22Garrett County, MDMD28,3702.23–

23Talbot County, MDMD38,2382.18–

24Kent County, MDMD19,5652.15–

SHOWING 1–24 OF 24

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