Housing units in St. Louis County

Housing units in St. Louis County was 446,192 in 2024, according to the U.S. Census Bureau. That is up 0.2% from 2023. That is the 1st highest of 115 counties in 2024.

2024, count446,192

Change on 2023+0.2%

Rank1st of 115Counties in Missouri ranked

Series high446,1922024

Series low444,1462021

Next release: Friday, 29 January 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Housing units in St. Louis County, 2021 to 2024

count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12, published 2026-01-29.

All 4 values

Period	count
2024	446,192
2023	445,472
2022	444,860
2021	444,146

Compared with Missouri and United States

Place	2024
St. Louis County	446,192
Missouri	2,825,287
United States	143,775,355

St. Louis County compared with nearby places

Under 4,000
4,000 to 6,000
6,000 to 8,000
8,000 to 13K
13K to 25K
25K and over

Housing units, 2024, count. St. Louis County is outlined. Same source and period for every area shown. Source: U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

US states by housing units 51 places
Counties in Missouri by housing units 115 places

Definition

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.

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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 (Housing units, St. Louis County, 2021 to 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, Housing units, St. Louis County, 2021 to 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/en/housing-units/st-louis-county-missouri. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25001: total housing units. Housing units, St. Louis County, 2021 to 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/en/housing-units/st-louis-county-missouri.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Housing units, St. Louis County, 2021 to 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/en/housing-units/st-louis-county-missouri (Accessed: 12 October 2026).

BibTeX

@misc{census_housing_units_st_louis_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Housing units, St. Louis County, 2021 to 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/en/housing-units/st-louis-county-missouri. 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: Housing units, St. Louis County, 2021 to 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/en/housing-units/st-louis-county-missouri
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/housing-units/st-louis-county-missouri.
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

What is the housing units in St. Louis County?

Housing units in St. Louis County was 446,192 in 2024, according to the U.S. Census Bureau. That is up 0.2% from 2023. That is the 1st highest of 115 counties in 2024.

Where does this figure come from?

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

What was the highest housing units in St. Louis County?

446,192 in 2024, the highest value since 2021 in this series.

Related statistics for St. Louis County

All statistics for St. Louis County | St. Louis County in figures