RANKING · 2024 ACS · 24 SHOWN OF 24

Largest households, Maryland counties

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

01Calvert County, MDMD94,4842.80–

02Charles County, MDMD176,5932.78–

03Howard County, MDMD339,1832.76–

04Montgomery County, MDMD1,074,5822.72–

05Frederick County, MDMD302,8832.70–

06Prince George's County, MDMD970,3742.70–

07Carroll County, MDMD176,6772.66–

08Caroline County, MDMD34,1162.65–

09St. Mary's County, MDMD116,6922.65–

10Anne Arundel County, MDMD603,3802.60–

11Queen Anne's County, MDMD54,4482.58–

12Harford County, MDMD266,4462.57–

13Cecil County, MDMD107,1312.54–

14Baltimore County, MDMD847,6502.50–

15Wicomico County, MDMD106,8992.49–

16Washington County, MDMD157,7312.48–

17Dorchester County, MDMD33,6282.38–

18Somerset County, MDMD24,9732.38–

19Talbot County, MDMD38,2382.28–

20Allegany County, MDMD66,8482.23–

21Garrett County, MDMD28,3702.22–

22Worcester County, MDMD54,4592.19–

23Baltimore, MDMD569,9972.16–

24Kent County, MDMD19,5652.09–

SHOWING 1–24 OF 24

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