Data / Rankings / Housing vacancy rate, all vacant units (US) / Counties in Maryland

Counties in Maryland by housing vacancy rate, all vacant units (US)

Worcester County had the highest housing vacancy rate, all vacant units (US) of 24 counties in 2021, at 59.9%. Howard County had the lowest, at 3.4%. The median was 10% and the figure for Maryland was 8.8%. Source: the U.S. Census Bureau.

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Highest59.9Worcester County
Lowest3.4Howard County
Median1024 counties
Maryland8.8History

Map of counties, 2021

Allegany County: 16.3 %Anne Arundel County: 5.5 %Baltimore County: 6.1 %Calvert County: 7.8 %Caroline County: 11.2 %Carroll County: 4 %Cecil County: 11.7 %Charles County: 5.8 %Dorchester County: 20.1 %Frederick County: 4.3 %Garrett County: 33.1 %Harford County: 5.1 %Howard County: 3.4 %Kent County: 19.9 %Montgomery County: 4.6 %Prince George's County: 5.3 %Queen Anne's County: 10.7 %St. Mary's County: 10.9 %Somerset County: 25.9 %Talbot County: 17.1 %Washington County: 7.6 %Wicomico County: 9.3 %Worcester County: 59.9 %Baltimore city: 16.6 %
  • Under 5.2
  • 5.2 to 7.6
  • 7.6 to 11
  • 11 to 18
  • 18 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Worcester County: 59.9 %Worcester County59.9Garrett County: 33.1 %Garrett County33.1Somerset County: 25.9 %Somerset County25.9Dorchester County: 20.1 %Dorchester County20.1Kent County: 19.9 %Kent County19.9Talbot County: 17.1 %Talbot County17.1Baltimore city: 16.6 %Baltimore city16.6Allegany County: 16.3 %Allegany County16.3Cecil County: 11.7 %Cecil County11.7Caroline County: 11.2 %Caroline County11.2St. Mary's County: 10.9 %St. Mary's County10.9Queen Anne's County: 10.7 %Queen Anne's County10.7Wicomico County: 9.3 %Wicomico County9.3Calvert County: 7.8 %Calvert County7.8Washington County: 7.6 %Washington County7.6Baltimore County: 6.1 %Baltimore County6.1Charles County: 5.8 %Charles County5.8Anne Arundel County: 5.5 %Anne Arundel County5.5Prince George's County: 5.3 %Prince George's County5.3Harford County: 5.1 %Harford County5.1Montgomery County: 4.6 %Montgomery County4.6Frederick County: 4.3 %Frederick County4.3Carroll County: 4 %Carroll County4Howard County: 3.4 %Howard County3.4Worcester County: 59.9 %Worcester County59.9Garrett County: 33.1 %Garrett County33.1Somerset County: 25.9 %Somerset County25.9Dorchester County: 20.1 %Dorchester County20.1Kent County: 19.9 %Kent County19.9Talbot County: 17.1 %Talbot County17.1Baltimore city: 16.6 %Baltimore city16.6Allegany County: 16.3 %Allegany County16.3Cecil County: 11.7 %Cecil County11.7Caroline County: 11.2 %Caroline County11.2St. Mary's County: 10.9 %St. Mary's County10.9Queen Anne's County: 10.7 %Queen Anne's County10.7Wicomico County: 9.3 %Wicomico County9.3Calvert County: 7.8 %Calvert County7.8Washington County: 7.6 %Washington County7.6Baltimore County: 6.1 %Baltimore County6.1Charles County: 5.8 %Charles County5.8Anne Arundel County: 5.5 %Anne Arundel County5.5Prince George's County: 5.3 %Prince George's County5.3Harford County: 5.1 %Harford County5.1Montgomery County: 4.6 %Montgomery County4.6Frederick County: 4.3 %Frederick County4.3Carroll County: 4 %Carroll County4Howard County: 3.4 %Howard County3.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Worcester County59.9
2Garrett County33.1
3Somerset County25.9
4Dorchester County20.1
5Kent County19.9
6Talbot County17.1
7Baltimore city16.6
8Allegany County16.3
9Cecil County11.7
10Caroline County11.2
11St. Mary's County10.9
12Queen Anne's County10.7
13Wicomico County9.3
14Calvert County7.8
15Washington County7.6
16Baltimore County6.1
17Charles County5.8
18Anne Arundel County5.5
19Prince George's County5.3
20Harford County5.1
21Montgomery County4.6
22Frederick County4.3
23Carroll County4
24Howard County3.4

Other periods

About this ranking

Vacant housing units as a percentage of all housing units.

More on how it is measured
  • Vacant units include those for rent or for sale, rented or sold but not yet occupied, for seasonal, recreational or occasional use, for migrant workers, and other vacant units.
  • United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

This gross rate counts seasonal and other off-market vacant units, so it is much higher than the rental and homeowner vacancy rates of the Housing Vacancy Survey (rental_vacancy_rate and homeowner_vacancy_rate) and cannot be compared with them. Counties with many holiday homes have high rates.

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 B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.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 B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs (Counties in Maryland by housing vacancy rate, all vacant units (US), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat

MLA 9

American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs, Counties in Maryland by housing vacancy rate, all vacant units (US), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat. Invokely, https://invokely.ai/rankings/housing-vacancy-rate-all-vacant-units/maryland-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs. Counties in Maryland by housing vacancy rate, all vacant units (US), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat. Also distributed by Invokely, https://invokely.ai/rankings/housing-vacancy-rate-all-vacant-units/maryland-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs, Counties in Maryland by housing vacancy rate, all vacant units (US), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat, via Invokely: https://invokely.ai/rankings/housing-vacancy-rate-all-vacant-units/maryland-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maryland_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs: Counties in Maryland by housing vacancy rate, all vacant units (US), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/housing-vacancy-rate-all-vacant-units/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs: Counties in Maryland by housing vacancy rate, all vacant units (US), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat
L2  - https://invokely.ai/rankings/housing-vacancy-rate-all-vacant-units/maryland-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/housing-vacancy-rate-all-vacant-units/maryland-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25002.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest housing vacancy rate, all vacant units (US)?

Worcester County, with 59.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest housing vacancy rate, all vacant units (US)?

Howard County, with 3.4% in 2021.

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 B25002: vacant housing units as a percentage of all housing units, calculated with stored inputs. Retrieved 2026-10-12.

Housing vacancy rate, all vacant units (US): other rankings

Counties in Maryland: more rankings