Counties in Colorado by population speaking a language other than English at home

Costilla County had the highest population speaking a language other than English at home of 64 counties in 2022, at 35.6%. Mineral County had the lowest, at 0%. The median was 10.2% and the figure for Colorado was 16.2%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest35.6Costilla County
Median10.264 counties
Colorado16.2History

Map of counties, 2022

Adams County: 28.8 %Alamosa County: 22.6 %Arapahoe County: 22.9 %Archuleta County: 7.7 %Baca County: 4.5 %Bent County: 9.3 %Boulder County: 14.4 %Broomfield County: 13.9 %Chaffee County: 5 %Cheyenne County: 12.1 %Clear Creek County: 7.5 %Conejos County: 27.9 %Costilla County: 35.6 %Crowley County: 10.4 %Custer County: 1.4 %Delta County: 8.5 %Denver County: 24.4 %Dolores County: 14 %Douglas County: 9.6 %Eagle County: 26.5 %Elbert County: 4.2 %El Paso County: 11.2 %Fremont County: 5.4 %Garfield County: 26 %Gilpin County: 9.9 %Grand County: 6.8 %Gunnison County: 7.6 %Hinsdale County: 1.7 %Huerfano County: 5.9 %Jackson County: 0.7 %Jefferson County: 10 %Kiowa County: 5.2 %Kit Carson County: 13.7 %Lake County: 17.7 %La Plata County: 8.3 %Larimer County: 8.7 %Las Animas County: 11.8 %Lincoln County: 7.2 %Logan County: 7.8 %Mesa County: 6.6 %Mineral County: 0 %Moffat County: 11.7 %Montezuma County: 10.8 %Montrose County: 16.8 %Morgan County: 23.5 %Otero County: 14.4 %Ouray County: 5.8 %Park County: 3 %Phillips County: 26.6 %Pitkin County: 14.9 %Prowers County: 18.8 %Pueblo County: 11.6 %Rio Blanco County: 7.2 %Rio Grande County: 20 %Routt County: 5.8 %Saguache County: 21 %San Juan County: 19.6 %San Miguel County: 17.2 %Sedgwick County: 9.7 %Summit County: 9 %Teller County: 4.3 %Washington County: 5.9 %Weld County: 19.2 %Yuma County: 21.6 %
  • Under 5.6
  • 5.6 to 7.7
  • 7.7 to 10
  • 10 to 14
  • 14 to 21
  • 21 and over
%, 2022. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2022

Costilla County: 35.6 %Costilla County35.6Adams County: 28.8 %Adams County28.8Conejos County: 27.9 %Conejos County27.9Phillips County: 26.6 %Phillips County26.6Eagle County: 26.5 %Eagle County26.5Garfield County: 26 %Garfield County26Denver County: 24.4 %Denver County24.4Morgan County: 23.5 %Morgan County23.5Arapahoe County: 22.9 %Arapahoe County22.9Alamosa County: 22.6 %Alamosa County22.6Yuma County: 21.6 %Yuma County21.6Saguache County: 21 %Saguache County21Rio Grande County: 20 %Rio Grande County20San Juan County: 19.6 %San Juan County19.6Weld County: 19.2 %Weld County19.2Prowers County: 18.8 %Prowers County18.8Lake County: 17.7 %Lake County17.7San Miguel County: 17.2 %San Miguel County17.2Montrose County: 16.8 %Montrose County16.8Pitkin County: 14.9 %Pitkin County14.9Otero County: 14.4 %Otero County14.4Boulder County: 14.4 %Boulder County14.4Dolores County: 14 %Dolores County14Broomfield County: 13.9 %Broomfield County13.9Kit Carson County: 13.7 %Kit Carson County13.7Cheyenne County: 12.1 %Cheyenne County12.1Las Animas County: 11.8 %Las Animas County11.8Moffat County: 11.7 %Moffat County11.7Pueblo County: 11.6 %Pueblo County11.6El Paso County: 11.2 %El Paso County11.2Montezuma County: 10.8 %Montezuma County10.8Crowley County: 10.4 %Crowley County10.4Jefferson County: 10 %Jefferson County10Gilpin County: 9.9 %Gilpin County9.9Sedgwick County: 9.7 %Sedgwick County9.7Douglas County: 9.6 %Douglas County9.6Bent County: 9.3 %Bent County9.3Summit County: 9 %Summit County9Larimer County: 8.7 %Larimer County8.7Delta County: 8.5 %Delta County8.5Costilla County: 35.6 %Costilla County35.6Adams County: 28.8 %Adams County28.8Conejos County: 27.9 %Conejos County27.9Phillips County: 26.6 %Phillips County26.6Eagle County: 26.5 %Eagle County26.5Garfield County: 26 %Garfield County26Denver County: 24.4 %Denver County24.4Morgan County: 23.5 %Morgan County23.5Arapahoe County: 22.9 %Arapahoe County22.9Alamosa County: 22.6 %Alamosa County22.6Yuma County: 21.6 %Yuma County21.6Saguache County: 21 %Saguache County21Rio Grande County: 20 %Rio Grande County20San Juan County: 19.6 %San Juan County19.6Weld County: 19.2 %Weld County19.2Prowers County: 18.8 %Prowers County18.8Lake County: 17.7 %Lake County17.7San Miguel County: 17.2 %San Miguel County17.2Montrose County: 16.8 %Montrose County16.8Pitkin County: 14.9 %Pitkin County14.9Otero County: 14.4 %Otero County14.4Boulder County: 14.4 %Boulder County14.4Dolores County: 14 %Dolores County14Broomfield County: 13.9 %Broomfield County13.9Kit Carson County: 13.7 %Kit Carson County13.7Cheyenne County: 12.1 %Cheyenne County12.1Las Animas County: 11.8 %Las Animas County11.8Moffat County: 11.7 %Moffat County11.7Pueblo County: 11.6 %Pueblo County11.6El Paso County: 11.2 %El Paso County11.2Montezuma County: 10.8 %Montezuma County10.8Crowley County: 10.4 %Crowley County10.4Jefferson County: 10 %Jefferson County10Gilpin County: 9.9 %Gilpin County9.9Sedgwick County: 9.7 %Sedgwick County9.7Douglas County: 9.6 %Douglas County9.6Bent County: 9.3 %Bent County9.3Summit County: 9 %Summit County9Larimer County: 8.7 %Larimer County8.7Delta County: 8.5 %Delta County8.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Costilla County35.6+1.5 pts
2Adams County28.8+0.6 pts
3Conejos County27.9+0.7 pts
4Phillips County26.6-0.9 pts
5Eagle County26.5+0.6 pts
6Garfield County26+0.2 pts
7Denver County24.4-0.1 pts
8Morgan County23.5-0.4 pts
9Arapahoe County22.9-0.3 pts
10Alamosa County22.6-3.8 pts
11Yuma County21.6+0.7 pts
12Saguache County21-2.9 pts
13Rio Grande County20-0.3 pts
14San Juan County19.6-0.3 pts
15Weld County19.2-0.3 pts
16Prowers County18.8-4 pts
17Lake County17.7+0.2 pts
18San Miguel County17.2+1.6 pts
19Montrose County16.8-0.9 pts
20Pitkin County14.9-1 pts
21Otero County14.4+0.8 pts
22Boulder County14.4-0.3 pts
23Dolores County14+1.4 pts
24Broomfield County13.9+0.2 pts
25Kit Carson County13.7+0.7 pts
26Cheyenne County12.1+2 pts
27Las Animas County11.8-0.8 pts
28Moffat County11.7-1.3 pts
29Pueblo County11.6+0.1 pts
30El Paso County11.2-0 pts
31Montezuma County10.8-1.2 pts
32Crowley County10.4-1.8 pts
33Jefferson County10-0.2 pts
34Gilpin County9.9+3.4 pts
35Sedgwick County9.7+0.5 pts
36Douglas County9.6+0.4 pts
37Bent County9.3-2.7 pts
38Summit County9+0.7 pts
39Larimer County8.7-0.4 pts
40Delta County8.5-1.4 pts
41La Plata County8.3-0.1 pts
42Logan County7.8-1.4 pts
43Archuleta County7.7-0.6 pts
44Gunnison County7.6-1.2 pts
45Clear Creek County7.5-0.1 pts
46Rio Blanco County7.2+1.1 pts
47Lincoln County7.2-4.9 pts
48Grand County6.8-0.5 pts
49Mesa County6.60 pts
50Washington County5.9+0.8 pts
51Huerfano County5.9-0.5 pts
52Ouray County5.8-1.4 pts
53Routt County5.8+0.3 pts
54Fremont County5.4-0.7 pts
55Kiowa County5.2+3.1 pts
56Chaffee County5-0 pts
57Baca County4.5-1.1 pts
58Teller County4.3+1.1 pts
59Elbert County4.2-0.5 pts
60Park County3+0.1 pts
61Hinsdale County1.7-0.1 pts
62Custer County1.4-0.5 pts
63Jackson County0.7-3.3 pts
64Mineral County0-0.9 pts

Other periods

About this ranking

People aged 5 and over who speak a language other than English at home, as a percentage of all people aged 5 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Measures the language used at home, not English ability: most people in this group also speak English. Spanish speakers are shown separately in spanish_at_home_share.

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 C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.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 C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs (Counties in Colorado by population speaking a language other than English at home, 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat

MLA 9

American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs, Counties in Colorado by population speaking a language other than English at home, 2022. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat. Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/colorado-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. Counties in Colorado by population speaking a language other than English at home, 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat. Also distributed by Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/colorado-counties?period=2022.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs, Counties in Colorado by population speaking a language other than English at home, 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat, via Invokely: https://invokely.ai/rankings/language-other-than-english-at-home/colorado-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2022,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs: Counties in Colorado by population speaking a language other than English at home, 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/colorado-counties?period=2022. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs: Counties in Colorado by population speaking a language other than English at home, 2022
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat
L2  - https://invokely.ai/rankings/language-other-than-english-at-home/colorado-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/colorado-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-c16001.dat. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest population speaking a language other than English at home?

Costilla County, with 35.6% in 2022, according to the U.S. Census Bureau.

Which county has the lowest population speaking a language other than English at home?

Mineral County, with 0% in 2022.

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 C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. Retrieved 2026-10-12.

Population speaking a language other than English at home: other rankings

Counties in Colorado: more rankings