Counties in Colorado by net domestic migration, July to June, 2025
Weld County had the highest net domestic migration, July to June of 64 counties in 2025, at 3,857. Arapahoe County had the lowest, at -9,859. The median was -1 and the figure for Colorado was -12,100. Source: the U.S. Census Bureau.
Top 40 counties, 2025
Full ranking
| Rank | Counties | 2025 | Change on 2024 |
|---|---|---|---|
| 1 | Weld County Estimated | 3,857 | -33% |
| 2 | Douglas County Estimated | 3,330 | -34.2% |
| 3 | Larimer County Estimated | 2,050 | +51.6% |
| 4 | Mesa County Estimated | 1,638 | +1.2% |
| 5 | Elbert County Estimated | 1,156 | +142.3% |
| 6 | Adams County Estimated | 383 | -59.7% |
| 7 | Fremont County Estimated | 329 | +1,275% |
| 8 | Broomfield County Estimated | 286 | -60.3% |
| 9 | Archuleta County Estimated | 198 | +1,142.1% |
| 10 | El Paso County Estimated | 164 | -64.5% |
| 11 | Huerfano County Estimated | 108 | +300% |
| 12 | Grand County Estimated | 106 | +24.7% |
| 13 | Gilpin County Estimated | 101 | +165.8% |
| 14 | Ouray County Estimated | 93 | +933.3% |
| 15 | Chaffee County Estimated | 55 | -73% |
| 16 | Saguache County Estimated | 54 | +515.4% |
| 17 | Crowley County Estimated | 52 | +85.7% |
| 18 | Montezuma County Estimated | 49 | -72.6% |
| 19 | Lincoln County Estimated | 46 | -56.6% |
| 20 | Costilla County Estimated | 41 | -52.3% |
| 21 | Teller County Estimated | 31 | -52.3% |
| 22 | Kit Carson County Estimated | 30 | +1,400% |
| 23 | Dolores County Estimated | 26 | +146.4% |
| 23 | Lake County Estimated | 26 | +157.8% |
| 25 | Cheyenne County Estimated | 25 | +192.6% |
| 26 | Custer County Estimated | 15 | +1,600% |
| 27 | Montrose County Estimated | 14 | -96.5% |
| 28 | Conejos County Estimated | 12 | -57.1% |
| 29 | Logan County Estimated | 10 | -91.8% |
| 30 | Bent County Estimated | 8 | -88.6% |
| 31 | Kiowa County Estimated | 5 | -82.1% |
| 32 | Hinsdale County Estimated | 0 | +100% |
| 33 | Delta County Estimated | -1 | -100.2% |
| 34 | San Juan County Estimated | -3 | -113.6% |
| 35 | Sedgwick County Estimated | -5 | +76.2% |
| 36 | Mineral County Estimated | -8 | -260% |
| 37 | Washington County Estimated | -14 | +86% |
| 38 | Alamosa County Estimated | -15 | +60.5% |
| 38 | Clear Creek County Estimated | -15 | +62.5% |
| 40 | La Plata County Estimated | -25 | -106.3% |
| 40 | Rio Grande County Estimated | -25 | -4.2% |
| 42 | Gunnison County Estimated | -32 | +68.6% |
| 43 | Baca County Estimated | -33 | -265% |
| 44 | Las Animas County Estimated | -49 | -126.1% |
| 44 | Phillips County Estimated | -49 | -81.5% |
| 46 | Park County Estimated | -63 | -138% |
| 47 | Jackson County Estimated | -64 | -60% |
| 48 | Prowers County Estimated | -67 | -208.1% |
| 49 | Yuma County Estimated | -74 | +53.5% |
| 50 | San Miguel County Estimated | -103 | +1.9% |
| 51 | Rio Blanco County Estimated | -114 | -700% |
| 52 | Otero County Estimated | -119 | +23.2% |
| 53 | Pitkin County Estimated | -198 | -5.3% |
| 54 | Moffat County Estimated | -223 | -23.2% |
| 55 | Morgan County Estimated | -248 | -439.1% |
| 56 | Routt County Estimated | -289 | -265.8% |
| 57 | Summit County Estimated | -448 | -39.6% |
| 58 | Pueblo County Estimated | -648 | -309% |
| 59 | Eagle County Estimated | -662 | +26% |
| 60 | Garfield County Estimated | -770 | -154.1% |
| 61 | Jefferson County Estimated | -1,904 | -24.6% |
| 62 | Boulder County Estimated | -2,248 | -113.5% |
| 63 | Denver County Estimated | -8,023 | -253.6% |
| 64 | Arapahoe County Estimated | -9,859 | -45.4% |
Other periods
About this ranking
Estimated moves into an area from elsewhere in the same country minus moves out to the rest of the country, from July 1 of the previous year through June 30 of the reported year. United States: states and counties. Canada: provinces and territories, net interprovincial migration (Statistics Canada). United Kingdom: local authorities, counting moves between any two UK local authorities, including across the borders of England, Wales, Scotland and Northern Ireland (ONS internal migration). A negative value means more people left than arrived.
Sums to zero, or close to it, for each country as a whole, so there is no national value.
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. Population Estimates Program: net domestic migration, states and counties, 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
APA 7
U.S. Census Bureau. (2026). Population Estimates Program: net domestic migration, states and counties, 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 (Counties in Colorado by net domestic migration, July to June, 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html
MLA 9
Population Estimates Program: net domestic migration, states and counties, 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, Counties in Colorado by net domestic migration, July to June, 2025. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/colorado-counties. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration, states and counties, 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. Counties in Colorado by net domestic migration, July to June, 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/colorado-counties.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net domestic migration, states and counties, 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, Counties in Colorado by net domestic migration, July to June, 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-domestic-migration-july-june/colorado-counties (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_colorado_by_2025,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program: net domestic migration, states and counties, 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: Counties in Colorado by net domestic migration, July to June, 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/rankings/net-domestic-migration-july-june/colorado-counties. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, 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: net domestic migration, states and counties, 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: Counties in Colorado by net domestic migration, July to June, 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/rankings/net-domestic-migration-july-june/colorado-counties
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/colorado-counties.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, 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 -
Use this data in your AI agent
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Rank Counties in Colorado by net domestic migration, July to June using official data, and cite the source.
rank_places {"indicator":"net_domestic_migration_july_june","level":"province","within":"Colorado","limit":10}
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Which county has the highest net domestic migration, July to June?
Weld County, with 3,857 in 2025, according to the U.S. Census Bureau.
Which county has the lowest net domestic migration, July to June?
Arapahoe County, with -9,859 in 2025.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, 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.