Natural change, July to June in Contra Costa County

Natural change, July to June in Contra Costa County was 2,868 in 2025, according to the U.S. Census Bureau. That is down 0.8% from 2024. That is the 13th highest of 58 counties in 2025.

2025, persons2,868 Estimated

Change on 2024-0.8%

Rank13th of 58Counties in California ranked

Series high5,0682011

Series low2,5432020

Next release: Friday, 26 March 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Natural change, July to June in Contra Costa County, 2011 to 2025

persons. Source: U.S. Census Bureau, Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12, published 2026-03-26.

All 15 values

Period	persons
2025	2,868 Estimated
2024	2,892 Estimated
2023	2,707 Estimated
2022	2,756 Estimated
2021	2,684 Estimated
2020	2,543 Estimated
2019	3,846 Estimated
2018	4,065 Estimated
2017	4,320 Estimated
2016	4,790 Estimated
2015	5,001 Estimated
2014	5,016 Estimated
2013	4,998 Estimated
2012	4,952 Estimated
2011	5,068 Estimated

Compared with California and United States

Place	2025
Contra Costa County	2,868
California	109,715
United States	518,858

Contra Costa County compared with nearby places

Under -200
-200 to -100
-100 to 0
0 to 600
600 to 3,100
3,100 and over

Natural change, July to June, 2025, persons. 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 natural change, July to June 51 places
Counties in California by natural change, July to June 58 places

Definition

Estimated births minus deaths of residents from July 1 of the previous year through June 30 of the reported year. A negative value means more deaths than births.

Equals births_july_june minus deaths_july_june for the same place and year. Not a calendar-year figure.

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How to cite

U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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). Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Natural change, July to June, Contra Costa County, 2011 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Natural change, July to June, Contra Costa County, 2011 to 2025. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/en/natural-change-july-june/contra-costa-county-california. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Natural change, July to June, Contra Costa County, 2011 to 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/en/natural-change-july-june/contra-costa-county-california.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Natural change, July to June, Contra Costa County, 2011 to 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/en/natural-change-july-june/contra-costa-county-california (Accessed: 12 October 2026).

BibTeX

@misc{census_natural_change_july_to_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Natural change, July to June, Contra Costa County, 2011 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/natural-change-july-june/contra-costa-county-california. Publisher attribution: U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Natural change, July to June, Contra Costa County, 2011 to 2025
PY  - 2026
DA  - 2026/03/26
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/en/natural-change-july-june/contra-costa-county-california
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/natural-change-july-june/contra-costa-county-california.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -

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Questions

What is the natural change, July to June in Contra Costa County?

Natural change, July to June in Contra Costa County was 2,868 in 2025, according to the U.S. Census Bureau. That is down 0.8% from 2024. That is the 13th highest of 58 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Population Estimates Program: natural change (births minus deaths), July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved by Invokely on 2026-10-12.

What was the highest natural change, July to June in Contra Costa County?

5,068 in 2011, the highest value since 2011 in this series.

Related statistics for Contra Costa County

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