Counties in Maryland by housing units, 2024

Montgomery County had the highest housing units of 24 counties in 2024, at 406,531. Kent County had the lowest, at 10,363. The median was 51,626 and the figure for Maryland was 2.56 million. Source: the U.S. Census Bureau.

Highest406,531Montgomery County

Lowest10,363Kent County

Median51,62624 counties

Maryland2,560,784History

Map of counties, 2024

Under 19K
19K to 44K
44K to 64K
64K to 170K
170K and over

count, 2024. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2024 count	Change on 2023
1	Montgomery County	406,531	+0.3%
2	Prince George's County	365,506	+0.8%
3	Baltimore County	350,821	+0.1%
4	Baltimore city	295,032	+0.5%
5	Anne Arundel County	236,262	+0.6%
6	Howard County	125,286	+0.6%
7	Frederick County	108,924	+2.3%
8	Harford County	105,468	+1%
9	Carroll County	66,768	+0.9%
10	Washington County	64,145	+0.3%
11	Charles County	63,813	+1.2%
12	Worcester County	56,867	+0.5%
13	St. Mary's County	46,385	+0.7%
14	Cecil County	44,355	+0.4%
15	Wicomico County	44,127	+0.5%
16	Calvert County	36,119	+0.4%
17	Allegany County	32,720	-0.3%
18	Queen Anne's County	22,038	+1.5%
19	Talbot County	19,720	+0.2%
20	Garrett County	18,642	+0.4%
21	Dorchester County	16,433	+0.1%
22	Caroline County	13,531	+0.1%
23	Somerset County	10,928	+0.1%
24	Kent County	10,363	+0.4%

Other periods

2024
2023
2022
2021

About this ranking

All housing units, occupied and vacant: houses, apartments, mobile homes and rooms intended as separate living quarters. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

A survey estimate averaged over five years, not a count on one date.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25001: total housing units (Counties in Maryland by housing units, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat

MLA 9

American Community Survey 5-year estimates, table B25001: total housing units, Counties in Maryland by housing units, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Invokely, https://invokely.ai/rankings/housing-units/maryland-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25001: total housing units. Counties in Maryland by housing units, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Also distributed by Invokely, https://invokely.ai/rankings/housing-units/maryland-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Counties in Maryland by housing units, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat, via Invokely: https://invokely.ai/rankings/housing-units/maryland-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_maryland_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Counties in Maryland by housing units, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/housing-units/maryland-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25001: total housing units: Counties in Maryland by housing units, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat
L2  - https://invokely.ai/rankings/housing-units/maryland-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/housing-units/maryland-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest housing units?

Montgomery County, with 406,531 in 2024, according to the U.S. Census Bureau.

Which county has the lowest housing units?

Kent County, with 10,363 in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12.