Data / Natural change, July to June / Jefferson County

Natural change, July to June in Jefferson County

Natural change, July to June in Jefferson County was 795 in 2025, according to the U.S. Census Bureau. That is up 66% from 2024. That is the 7th highest of 64 counties in 2025.

2025, persons795 Estimated
Change on 2024+66%
Rank7th of 64Counties in Colorado ranked
Series high1,8212014
Series low1372021
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Natural change, July to June in Jefferson County, 2011 to 2025

05001,0001,5002,000201120142017202020252011: 1,813 persons2012: 1,658 persons2013: 1,627 persons2014: 1,821 persons2015: 1,436 persons2016: 1,589 persons2017: 1,478 persons2018: 1,113 persons2019: 1,096 persons2020: 699 persons2021: 137 persons2022: 176 persons2023: 297 persons2024: 479 persons2025: 795 persons
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
Periodpersons
2025795 Estimated
2024479 Estimated
2023297 Estimated
2022176 Estimated
2021137 Estimated
2020699 Estimated
20191,096 Estimated
20181,113 Estimated
20171,478 Estimated
20161,589 Estimated
20151,436 Estimated
20141,821 Estimated
20131,627 Estimated
20121,658 Estimated
20111,813 Estimated

Compared with Colorado and United States

Place2025
Jefferson County795
Colorado20,608
United States518,858

Rankings

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.

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, Jefferson 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, Jefferson 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/jefferson-county-colorado. 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, Jefferson 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/jefferson-county-colorado.

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, Jefferson 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/jefferson-county-colorado (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, Jefferson 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/jefferson-county-colorado. 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, Jefferson 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/jefferson-county-colorado
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/natural-change-july-june/jefferson-county-colorado.
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 Jefferson County?

Natural change, July to June in Jefferson County was 795 in 2025, according to the U.S. Census Bureau. That is up 66% from 2024. That is the 7th highest of 64 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 Jefferson County?

1,821 in 2014, the highest value since 2011 in this series.

Related statistics for Jefferson County

All statistics for Jefferson County | Jefferson County in figures