Housing units in Contra Costa County

Housing units in Contra Costa County was 429,260 in 2024, according to the U.S. Census Bureau. That is up 0.6% from 2023. That is the 9th highest of 58 counties in 2024.

2024, count429,260

Change on 2023+0.6%

Rank9th of 58Counties in California ranked

Series high429,2602024

Series low421,2392021

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 Contra Costa 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	429,260
2023	426,585
2022	424,057
2021	421,239

Compared with California and United States

Place	2024
Contra Costa County	429,260
California	14,644,735
United States	143,775,355

Contra Costa County compared with nearby places

Under 10K
10K to 30K
30K to 80K
80K to 160K
160K to 380K
380K and over

Housing units, 2024, count. Contra Costa 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 California by housing units 58 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.

Report a problem with this figure

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, Contra Costa 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, Contra Costa 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/contra-costa-county-california. 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, Contra Costa 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/contra-costa-county-california.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Housing units, Contra Costa 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/contra-costa-county-california (Accessed: 12 October 2026).

BibTeX

@misc{census_housing_units_contra_costa_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Housing units, Contra Costa 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/contra-costa-county-california. 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, Contra Costa 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/contra-costa-county-california
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/housing-units/contra-costa-county-california.
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  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/housing-units/contra-costa-county-california" width="760" height="440" title="Housing units, Contra Costa County, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

What is the latest housing units in Contra Costa County? Cite the source.

get_value {"indicator":"housing_units","place":"us-county-06013"}
GET https://invokely.ai/api/v1/value?indicator=housing_units&place=us-county-06013

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

What is the housing units in Contra Costa County?

Housing units in Contra Costa County was 429,260 in 2024, according to the U.S. Census Bureau. That is up 0.6% from 2023. That is the 9th highest of 58 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 Contra Costa County?

429,260 in 2024, the highest value since 2021 in this series.

Related statistics for Contra Costa County

All statistics for Contra Costa County | Contra Costa County in figures