Data / Rankings / Net international migration rate, July to June / Counties in Colorado

Counties in Colorado by net international migration rate, July to June

Yuma County had the highest net international migration rate, July to June of 64 counties in 2021, at 4.02 per 1,000 inhabitants. Costilla County had the lowest, at -0.28 per 1,000 inhabitants. The median was 0.23 per 1,000 inhabitants and the figure for Colorado was 0.68 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest4.02Yuma County
Lowest-0.28Costilla County
Median0.2364 counties
Colorado0.68History

Map of counties, 2021

Adams County: 0.92 per 1,000 inhabitantsAlamosa County: 0.61 per 1,000 inhabitantsArapahoe County: 1.48 per 1,000 inhabitantsArchuleta County: 0.15 per 1,000 inhabitantsBaca County: 0.29 per 1,000 inhabitantsBent County: 0 per 1,000 inhabitantsBoulder County: 1.01 per 1,000 inhabitantsBroomfield County: 0.77 per 1,000 inhabitantsChaffee County: 0.2 per 1,000 inhabitantsCheyenne County: 2.31 per 1,000 inhabitantsClear Creek County: 0.32 per 1,000 inhabitantsConejos County: 0 per 1,000 inhabitantsCostilla County: -0.28 per 1,000 inhabitantsCrowley County: -0.17 per 1,000 inhabitantsCuster County: 0 per 1,000 inhabitantsDelta County: 0.26 per 1,000 inhabitantsDenver County: 0.98 per 1,000 inhabitantsDolores County: 0 per 1,000 inhabitantsDouglas County: 0.68 per 1,000 inhabitantsEagle County: 0.68 per 1,000 inhabitantsElbert County: 0.15 per 1,000 inhabitantsEl Paso County: 0.08 per 1,000 inhabitantsFremont County: 0.14 per 1,000 inhabitantsGarfield County: 0.76 per 1,000 inhabitantsGilpin County: 1.37 per 1,000 inhabitantsGrand County: 0.57 per 1,000 inhabitantsGunnison County: 0.06 per 1,000 inhabitantsHinsdale County: 0 per 1,000 inhabitantsHuerfano County: -0.15 per 1,000 inhabitantsJackson County: 0 per 1,000 inhabitantsJefferson County: 0.39 per 1,000 inhabitantsKiowa County: 0 per 1,000 inhabitantsKit Carson County: 0 per 1,000 inhabitantsLake County: 0.14 per 1,000 inhabitantsLa Plata County: 0.18 per 1,000 inhabitantsLarimer County: 0.5 per 1,000 inhabitantsLas Animas County: 0.28 per 1,000 inhabitantsLincoln County: 0.36 per 1,000 inhabitantsLogan County: 0.33 per 1,000 inhabitantsMesa County: 0.19 per 1,000 inhabitantsMineral County: 0 per 1,000 inhabitantsMoffat County: 0 per 1,000 inhabitantsMontezuma County: 0.61 per 1,000 inhabitantsMontrose County: 0.56 per 1,000 inhabitantsMorgan County: 3.24 per 1,000 inhabitantsOtero County: 0.11 per 1,000 inhabitantsOuray County: 0.2 per 1,000 inhabitantsPark County: 0.11 per 1,000 inhabitantsPhillips County: 2.21 per 1,000 inhabitantsPitkin County: 1.04 per 1,000 inhabitantsProwers County: 1 per 1,000 inhabitantsPueblo County: 0.16 per 1,000 inhabitantsRio Blanco County: 1.08 per 1,000 inhabitantsRio Grande County: 0.09 per 1,000 inhabitantsRoutt County: 0.4 per 1,000 inhabitantsSaguache County: 0 per 1,000 inhabitantsSan Juan County: 0 per 1,000 inhabitantsSan Miguel County: 0.5 per 1,000 inhabitantsSedgwick County: 0 per 1,000 inhabitantsSummit County: 0.42 per 1,000 inhabitantsTeller County: 0.2 per 1,000 inhabitantsWashington County: 0.21 per 1,000 inhabitantsWeld County: 0.53 per 1,000 inhabitantsYuma County: 4.02 per 1,000 inhabitants
  • Under -0.21
  • -0.21 to -0.16
  • -0.16 to 0
  • 0 to 0.15
  • 0.15 to 0.53
  • 0.53 and over
per 1,000 inhabitants, 2021. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: net international migration rate per 1,000 residents, 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. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Yuma County: 4.02 per 1,000 inhabitantsYuma County4.02Morgan County: 3.24 per 1,000 inhabitantsMorgan County3.24Cheyenne County: 2.31 per 1,000 inhabitantsCheyenne County2.31Phillips County: 2.21 per 1,000 inhabitantsPhillips County2.21Arapahoe County: 1.48 per 1,000 inhabitantsArapahoe County1.48Gilpin County: 1.37 per 1,000 inhabitantsGilpin County1.37Rio Blanco County: 1.08 per 1,000 inhabitantsRio Blanco County1.08Pitkin County: 1.04 per 1,000 inhabitantsPitkin County1.04Boulder County: 1.01 per 1,000 inhabitantsBoulder County1.01Prowers County: 1 per 1,000 inhabitantsProwers County1Denver County: 0.98 per 1,000 inhabitantsDenver County0.98Adams County: 0.92 per 1,000 inhabitantsAdams County0.92Broomfield County: 0.77 per 1,000 inhabitantsBroomfield County0.77Garfield County: 0.76 per 1,000 inhabitantsGarfield County0.76Eagle County: 0.68 per 1,000 inhabitantsEagle County0.68Douglas County: 0.68 per 1,000 inhabitantsDouglas County0.68Montezuma County: 0.61 per 1,000 inhabitantsMontezuma County0.61Alamosa County: 0.61 per 1,000 inhabitantsAlamosa County0.61Grand County: 0.57 per 1,000 inhabitantsGrand County0.57Montrose County: 0.56 per 1,000 inhabitantsMontrose County0.56Weld County: 0.53 per 1,000 inhabitantsWeld County0.53San Miguel County: 0.5 per 1,000 inhabitantsSan Miguel County0.5Larimer County: 0.5 per 1,000 inhabitantsLarimer County0.5Summit County: 0.42 per 1,000 inhabitantsSummit County0.42Routt County: 0.4 per 1,000 inhabitantsRoutt County0.4Jefferson County: 0.39 per 1,000 inhabitantsJefferson County0.39Lincoln County: 0.36 per 1,000 inhabitantsLincoln County0.36Logan County: 0.33 per 1,000 inhabitantsLogan County0.33Clear Creek County: 0.32 per 1,000 inhabitantsClear Creek County0.32Baca County: 0.29 per 1,000 inhabitantsBaca County0.29Las Animas County: 0.28 per 1,000 inhabitantsLas Animas County0.28Delta County: 0.26 per 1,000 inhabitantsDelta County0.26Washington County: 0.21 per 1,000 inhabitantsWashington County0.21Chaffee County: 0.2 per 1,000 inhabitantsChaffee County0.2Ouray County: 0.2 per 1,000 inhabitantsOuray County0.2Teller County: 0.2 per 1,000 inhabitantsTeller County0.2Mesa County: 0.19 per 1,000 inhabitantsMesa County0.19La Plata County: 0.18 per 1,000 inhabitantsLa Plata County0.18Pueblo County: 0.16 per 1,000 inhabitantsPueblo County0.16Elbert County: 0.15 per 1,000 inhabitantsElbert County0.15Yuma County: 4.02 per 1,000 inhabitantsYuma County4.02Morgan County: 3.24 per 1,000 inhabitantsMorgan County3.24Cheyenne County: 2.31 per 1,000 inhabitantsCheyenne County2.31Phillips County: 2.21 per 1,000 inhabitantsPhillips County2.21Arapahoe County: 1.48 per 1,000 inhabitantsArapahoe County1.48Gilpin County: 1.37 per 1,000 inhabitantsGilpin County1.37Rio Blanco County: 1.08 per 1,000 inhabitantsRio Blanco County1.08Pitkin County: 1.04 per 1,000 inhabitantsPitkin County1.04Boulder County: 1.01 per 1,000 inhabitantsBoulder County1.01Prowers County: 1 per 1,000 inhabitantsProwers County1Denver County: 0.98 per 1,000 inhabitantsDenver County0.98Adams County: 0.92 per 1,000 inhabitantsAdams County0.92Broomfield County: 0.77 per 1,000 inhabitantsBroomfield County0.77Garfield County: 0.76 per 1,000 inhabitantsGarfield County0.76Eagle County: 0.68 per 1,000 inhabitantsEagle County0.68Douglas County: 0.68 per 1,000 inhabitantsDouglas County0.68Montezuma County: 0.61 per 1,000 inhabitantsMontezuma County0.61Alamosa County: 0.61 per 1,000 inhabitantsAlamosa County0.61Grand County: 0.57 per 1,000 inhabitantsGrand County0.57Montrose County: 0.56 per 1,000 inhabitantsMontrose County0.56Weld County: 0.53 per 1,000 inhabitantsWeld County0.53San Miguel County: 0.5 per 1,000 inhabitantsSan Miguel County0.5Larimer County: 0.5 per 1,000 inhabitantsLarimer County0.5Summit County: 0.42 per 1,000 inhabitantsSummit County0.42Routt County: 0.4 per 1,000 inhabitantsRoutt County0.4Jefferson County: 0.39 per 1,000 inhabitantsJefferson County0.39Lincoln County: 0.36 per 1,000 inhabitantsLincoln County0.36Logan County: 0.33 per 1,000 inhabitantsLogan County0.33Clear Creek County: 0.32 per 1,000 inhabitantsClear Creek County0.32Baca County: 0.29 per 1,000 inhabitantsBaca County0.29Las Animas County: 0.28 per 1,000 inhabitantsLas Animas County0.28Delta County: 0.26 per 1,000 inhabitantsDelta County0.26Washington County: 0.21 per 1,000 inhabitantsWashington County0.21Chaffee County: 0.2 per 1,000 inhabitantsChaffee County0.2Ouray County: 0.2 per 1,000 inhabitantsOuray County0.2Teller County: 0.2 per 1,000 inhabitantsTeller County0.2Mesa County: 0.19 per 1,000 inhabitantsMesa County0.19La Plata County: 0.18 per 1,000 inhabitantsLa Plata County0.18Pueblo County: 0.16 per 1,000 inhabitantsPueblo County0.16Elbert County: 0.15 per 1,000 inhabitantsElbert County0.15
per 1,000 inhabitants. Source: U.S. Census Bureau, Population Estimates Program: net international migration rate per 1,000 residents, 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.

Full ranking

RankCounties2021
per 1,000 inhabitants		Change on 2020
1Yuma County Estimated4.02+1.53 pts
2Morgan County Estimated3.24+0.4 pts
3Cheyenne County Estimated2.31+1.76 pts
4Phillips County Estimated2.21-5.12 pts
5Arapahoe County Estimated1.48+0.29 pts
6Gilpin County Estimated1.37+1.37 pts
7Rio Blanco County Estimated1.08-0.02 pts
8Pitkin County Estimated1.04-1.48 pts
9Boulder County Estimated1.01+0.13 pts
10Prowers County Estimated1+1 pts
11Denver County Estimated0.98+0.18 pts
12Adams County Estimated0.92+0.32 pts
13Broomfield County Estimated0.77+0.21 pts
14Garfield County Estimated0.76+0.74 pts
15Eagle County Estimated0.68-0.26 pts
16Douglas County Estimated0.68+0.17 pts
17Montezuma County Estimated0.61+0.73 pts
18Alamosa County Estimated0.61+0.79 pts
19Grand County Estimated0.57+0.06 pts
20Montrose County Estimated0.56+0.74 pts
21Weld County Estimated0.53+0.24 pts
22San Miguel County Estimated0.5-1.59 pts
23Larimer County Estimated0.5+0.04 pts
24Summit County Estimated0.42-1.15 pts
25Routt County Estimated0.4-0.38 pts
26Jefferson County Estimated0.39+0.03 pts
27Lincoln County Estimated0.36-0.17 pts
28Logan County Estimated0.33+0.65 pts
29Clear Creek County Estimated0.32-0.51 pts
30Baca County Estimated0.29+0.01 pts
31Las Animas County Estimated0.28-0.69 pts
32Delta County Estimated0.26+0.32 pts
33Washington County Estimated0.21+0.41 pts
34Chaffee County Estimated0.2-0.04 pts
35Ouray County Estimated0.2+0.4 pts
36Teller County Estimated0.2+0.24 pts
37Mesa County Estimated0.19+0.19 pts
38La Plata County Estimated0.18+0.16 pts
39Pueblo County Estimated0.16+0.15 pts
40Elbert County Estimated0.15-0.04 pts
41Archuleta County Estimated0.15-0.28 pts
42Fremont County Estimated0.14+0.16 pts
43Lake County Estimated0.14-0.11 pts
44Park County Estimated0.11-0.04 pts
45Otero County Estimated0.11+0.16 pts
46Rio Grande County Estimated0.09+0.18 pts
47El Paso County Estimated0.08-0.03 pts
48Gunnison County Estimated0.06+0.06 pts
49Bent County Estimated0-0.18 pts
49Conejos County Estimated0-0.12 pts
49Custer County Estimated00 pts
49Dolores County Estimated00 pts
49Hinsdale County Estimated00 pts
49Jackson County Estimated0-0.72 pts
49Kiowa County Estimated0-0.7 pts
49Kit Carson County Estimated0-0.56 pts
49Mineral County Estimated00 pts
49Moffat County Estimated0+0.08 pts
49Saguache County Estimated0-0.73 pts
49San Juan County Estimated00 pts
49Sedgwick County Estimated00 pts
62Huerfano County Estimated-0.15-0.15 pts
63Crowley County Estimated-0.17-1.03 pts
64Costilla County Estimated-0.28-2.08 pts

Other periods

About this ranking

Net international migration from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.

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 international migration rate per 1,000 residents, 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: net international migration rate per 1,000 residents, 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 international migration rate, July to June, 2021) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: net international migration rate per 1,000 residents, 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 international migration rate, July to June, 2021. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/colorado-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net international migration rate per 1,000 residents, 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 international migration rate, July to June, 2021. 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-international-migration-rate-july-june/colorado-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net international migration rate per 1,000 residents, 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 international migration rate, July to June, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-international-migration-rate-july-june/colorado-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: net international migration rate per 1,000 residents, 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 international migration rate, July to June, 2021}},
  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-international-migration-rate-july-june/colorado-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, 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 international migration rate per 1,000 residents, 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 international migration rate, July to June, 2021
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-international-migration-rate-july-june/colorado-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/colorado-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, 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

Which county has the highest net international migration rate, July to June?

Yuma County, with 4.02 per 1,000 inhabitants in 2021, according to the U.S. Census Bureau.

Which county has the lowest net international migration rate, July to June?

Costilla County, with -0.28 per 1,000 inhabitants 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, Population Estimates Program: net international migration rate per 1,000 residents, 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.

Net international migration rate, July to June: other rankings

Counties in Colorado: more rankings