Counties in Colorado by residents who moved from another state in the past year

Mineral County had the highest residents who moved from another state in the past year of 64 counties in 2021, at 11.7%. Saguache County had the lowest, at 0.1%. The median was 3.2% and the figure for Colorado was 4.1%. Source: the U.S. Census Bureau.

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Highest11.7Mineral County
Median3.264 counties
Colorado4.1History

Map of counties, 2021

Adams County: 2.2 %Alamosa County: 5.2 %Arapahoe County: 3.3 %Archuleta County: 3 %Baca County: 3.3 %Bent County: 3.1 %Boulder County: 5.7 %Broomfield County: 4.5 %Chaffee County: 1.6 %Cheyenne County: 1 %Clear Creek County: 3.6 %Conejos County: 2.3 %Costilla County: 5.9 %Crowley County: 3.6 %Custer County: 2.3 %Delta County: 2.3 %Denver County: 5.3 %Dolores County: 4.5 %Douglas County: 4.4 %Eagle County: 4.1 %Elbert County: 0.7 %El Paso County: 6.9 %Fremont County: 3.2 %Garfield County: 2.7 %Gilpin County: 5 %Grand County: 4.9 %Gunnison County: 5.2 %Hinsdale County: 2.2 %Huerfano County: 3.4 %Jackson County: 0.2 %Jefferson County: 2.9 %Kiowa County: 2.4 %Kit Carson County: 3.8 %Lake County: 5.2 %La Plata County: 5.2 %Larimer County: 4.5 %Las Animas County: 4.1 %Lincoln County: 1 %Logan County: 2.3 %Mesa County: 3.3 %Mineral County: 11.7 %Moffat County: 5.9 %Montezuma County: 1.9 %Montrose County: 2.1 %Morgan County: 3.2 %Otero County: 2.9 %Ouray County: 4.8 %Park County: 1.4 %Phillips County: 1.6 %Pitkin County: 5.8 %Prowers County: 2.5 %Pueblo County: 2 %Rio Blanco County: 6.3 %Rio Grande County: 1.9 %Routt County: 4.1 %Saguache County: 0.1 %San Juan County: 3.2 %San Miguel County: 4.5 %Sedgwick County: 5 %Summit County: 3.1 %Teller County: 3.2 %Washington County: 2.4 %Weld County: 2.5 %Yuma County: 1.9 %
  • Under 1.9
  • 1.9 to 2.5
  • 2.5 to 3.2
  • 3.2 to 4.1
  • 4.1 to 5.2
  • 5.2 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Mineral County: 11.7 %Mineral County11.7El Paso County: 6.9 %El Paso County6.9Rio Blanco County: 6.3 %Rio Blanco County6.3Costilla County: 5.9 %Costilla County5.9Moffat County: 5.9 %Moffat County5.9Pitkin County: 5.8 %Pitkin County5.8Boulder County: 5.7 %Boulder County5.7Denver County: 5.3 %Denver County5.3Alamosa County: 5.2 %Alamosa County5.2Lake County: 5.2 %Lake County5.2Gunnison County: 5.2 %Gunnison County5.2La Plata County: 5.2 %La Plata County5.2Sedgwick County: 5 %Sedgwick County5Gilpin County: 5 %Gilpin County5Grand County: 4.9 %Grand County4.9Ouray County: 4.8 %Ouray County4.8Dolores County: 4.5 %Dolores County4.5Larimer County: 4.5 %Larimer County4.5San Miguel County: 4.5 %San Miguel County4.5Broomfield County: 4.5 %Broomfield County4.5Douglas County: 4.4 %Douglas County4.4Eagle County: 4.1 %Eagle County4.1Las Animas County: 4.1 %Las Animas County4.1Routt County: 4.1 %Routt County4.1Kit Carson County: 3.8 %Kit Carson County3.8Crowley County: 3.6 %Crowley County3.6Clear Creek County: 3.6 %Clear Creek County3.6Huerfano County: 3.4 %Huerfano County3.4Arapahoe County: 3.3 %Arapahoe County3.3Mesa County: 3.3 %Mesa County3.3Baca County: 3.3 %Baca County3.3Morgan County: 3.2 %Morgan County3.2Teller County: 3.2 %Teller County3.2Fremont County: 3.2 %Fremont County3.2San Juan County: 3.2 %San Juan County3.2Summit County: 3.1 %Summit County3.1Bent County: 3.1 %Bent County3.1Archuleta County: 3 %Archuleta County3Jefferson County: 2.9 %Jefferson County2.9Otero County: 2.9 %Otero County2.9Mineral County: 11.7 %Mineral County11.7El Paso County: 6.9 %El Paso County6.9Rio Blanco County: 6.3 %Rio Blanco County6.3Costilla County: 5.9 %Costilla County5.9Moffat County: 5.9 %Moffat County5.9Pitkin County: 5.8 %Pitkin County5.8Boulder County: 5.7 %Boulder County5.7Denver County: 5.3 %Denver County5.3Alamosa County: 5.2 %Alamosa County5.2Lake County: 5.2 %Lake County5.2Gunnison County: 5.2 %Gunnison County5.2La Plata County: 5.2 %La Plata County5.2Sedgwick County: 5 %Sedgwick County5Gilpin County: 5 %Gilpin County5Grand County: 4.9 %Grand County4.9Ouray County: 4.8 %Ouray County4.8Dolores County: 4.5 %Dolores County4.5Larimer County: 4.5 %Larimer County4.5San Miguel County: 4.5 %San Miguel County4.5Broomfield County: 4.5 %Broomfield County4.5Douglas County: 4.4 %Douglas County4.4Eagle County: 4.1 %Eagle County4.1Las Animas County: 4.1 %Las Animas County4.1Routt County: 4.1 %Routt County4.1Kit Carson County: 3.8 %Kit Carson County3.8Crowley County: 3.6 %Crowley County3.6Clear Creek County: 3.6 %Clear Creek County3.6Huerfano County: 3.4 %Huerfano County3.4Arapahoe County: 3.3 %Arapahoe County3.3Mesa County: 3.3 %Mesa County3.3Baca County: 3.3 %Baca County3.3Morgan County: 3.2 %Morgan County3.2Teller County: 3.2 %Teller County3.2Fremont County: 3.2 %Fremont County3.2San Juan County: 3.2 %San Juan County3.2Summit County: 3.1 %Summit County3.1Bent County: 3.1 %Bent County3.1Archuleta County: 3 %Archuleta County3Jefferson County: 2.9 %Jefferson County2.9Otero County: 2.9 %Otero County2.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

Other periods

About this ranking

People aged 1 and over who lived in a different US state one year earlier, as a percentage of all people aged 1 and over living in the area. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Counts people who arrived, not net migration: people who left are not subtracted. Moves from abroad are left out. For the nation it is everyone who changed state.

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. American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.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 B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs (Counties in Colorado by residents who moved from another state in the past year, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat

MLA 9

American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs, Counties in Colorado by residents who moved from another state in the past year, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat. Invokely, https://invokely.ai/rankings/moved-from-another-state/colorado-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs. Counties in Colorado by residents who moved from another state in the past year, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat. Also distributed by Invokely, https://invokely.ai/rankings/moved-from-another-state/colorado-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs, Counties in Colorado by residents who moved from another state in the past year, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat, via Invokely: https://invokely.ai/rankings/moved-from-another-state/colorado-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs: Counties in Colorado by residents who moved from another state in the past year, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/moved-from-another-state/colorado-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs: Counties in Colorado by residents who moved from another state in the past year, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat
L2  - https://invokely.ai/rankings/moved-from-another-state/colorado-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/moved-from-another-state/colorado-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b07003.dat. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Colorado by residents who moved from another state in the past year using official data, and cite the source.
rank_places {"indicator":"moved_from_other_state_share","level":"province","within":"Colorado","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=moved_from_other_state_share&level=province&within=Colorado&limit=10

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Questions

Which county has the highest residents who moved from another state in the past year?

Mineral County, with 11.7% in 2021, according to the U.S. Census Bureau.

Which county has the lowest residents who moved from another state in the past year?

Saguache County, with 0.1% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B07003: people aged 1 and over who moved from a different state in the past year, as a percentage of the population aged 1 and over, calculated with stored inputs. Retrieved 2026-10-12.

Residents who moved from another state in the past year: other rankings

Counties in Colorado: more rankings