Counties in Colorado by population speaking Spanish at home

Costilla County had the highest population speaking Spanish at home of 64 counties in 2023, at 31.1%. Mineral County had the lowest, at 0.1%. The median was 7.6% and the figure for Colorado was 11%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest31.1Costilla County
Median7.664 counties
Colorado11History

Map of counties, 2023

Adams County: 23.9 %Alamosa County: 19.4 %Arapahoe County: 12.6 %Archuleta County: 4.8 %Baca County: 2 %Bent County: 7.7 %Boulder County: 7.9 %Broomfield County: 5.9 %Chaffee County: 3.4 %Cheyenne County: 8.7 %Clear Creek County: 5.6 %Conejos County: 26.1 %Costilla County: 31.1 %Crowley County: 7.9 %Custer County: 1.2 %Delta County: 6.9 %Denver County: 16.5 %Dolores County: 9.8 %Douglas County: 3.9 %Eagle County: 22.4 %Elbert County: 3.6 %El Paso County: 7.1 %Fremont County: 3.8 %Garfield County: 24.6 %Gilpin County: 3.3 %Grand County: 5.2 %Gunnison County: 5 %Hinsdale County: 2.9 %Huerfano County: 5.3 %Jackson County: 1.7 %Jefferson County: 5.9 %Kiowa County: 4.7 %Kit Carson County: 14.1 %Lake County: 17 %La Plata County: 5.4 %Larimer County: 5.2 %Las Animas County: 9.7 %Lincoln County: 7.6 %Logan County: 7.5 %Mesa County: 5.3 %Mineral County: 0.1 %Moffat County: 8.7 %Montezuma County: 4.3 %Montrose County: 14.1 %Morgan County: 18.3 %Otero County: 13.7 %Ouray County: 2.9 %Park County: 1.2 %Phillips County: 22.9 %Pitkin County: 8.9 %Prowers County: 18.1 %Pueblo County: 9.9 %Rio Blanco County: 5.1 %Rio Grande County: 17.7 %Routt County: 5.8 %Saguache County: 20.1 %San Juan County: 14.5 %San Miguel County: 11.6 %Sedgwick County: 8.1 %Summit County: 9 %Teller County: 1.9 %Washington County: 5.5 %Weld County: 16.7 %Yuma County: 23 %
  • Under 3.7
  • 3.7 to 5.3
  • 5.3 to 7.6
  • 7.6 to 9.9
  • 9.9 to 18
  • 18 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

Costilla County: 31.1 %Costilla County31.1Conejos County: 26.1 %Conejos County26.1Garfield County: 24.6 %Garfield County24.6Adams County: 23.9 %Adams County23.9Yuma County: 23 %Yuma County23Phillips County: 22.9 %Phillips County22.9Eagle County: 22.4 %Eagle County22.4Saguache County: 20.1 %Saguache County20.1Alamosa County: 19.4 %Alamosa County19.4Morgan County: 18.3 %Morgan County18.3Prowers County: 18.1 %Prowers County18.1Rio Grande County: 17.7 %Rio Grande County17.7Lake County: 17 %Lake County17Weld County: 16.7 %Weld County16.7Denver County: 16.5 %Denver County16.5San Juan County: 14.5 %San Juan County14.5Kit Carson County: 14.1 %Kit Carson County14.1Montrose County: 14.1 %Montrose County14.1Otero County: 13.7 %Otero County13.7Arapahoe County: 12.6 %Arapahoe County12.6San Miguel County: 11.6 %San Miguel County11.6Pueblo County: 9.9 %Pueblo County9.9Dolores County: 9.8 %Dolores County9.8Las Animas County: 9.7 %Las Animas County9.7Summit County: 9 %Summit County9Pitkin County: 8.9 %Pitkin County8.9Moffat County: 8.7 %Moffat County8.7Cheyenne County: 8.7 %Cheyenne County8.7Sedgwick County: 8.1 %Sedgwick County8.1Boulder County: 7.9 %Boulder County7.9Crowley County: 7.9 %Crowley County7.9Bent County: 7.7 %Bent County7.7Lincoln County: 7.6 %Lincoln County7.6Logan County: 7.5 %Logan County7.5El Paso County: 7.1 %El Paso County7.1Delta County: 6.9 %Delta County6.9Jefferson County: 5.9 %Jefferson County5.9Broomfield County: 5.9 %Broomfield County5.9Routt County: 5.8 %Routt County5.8Clear Creek County: 5.6 %Clear Creek County5.6Costilla County: 31.1 %Costilla County31.1Conejos County: 26.1 %Conejos County26.1Garfield County: 24.6 %Garfield County24.6Adams County: 23.9 %Adams County23.9Yuma County: 23 %Yuma County23Phillips County: 22.9 %Phillips County22.9Eagle County: 22.4 %Eagle County22.4Saguache County: 20.1 %Saguache County20.1Alamosa County: 19.4 %Alamosa County19.4Morgan County: 18.3 %Morgan County18.3Prowers County: 18.1 %Prowers County18.1Rio Grande County: 17.7 %Rio Grande County17.7Lake County: 17 %Lake County17Weld County: 16.7 %Weld County16.7Denver County: 16.5 %Denver County16.5San Juan County: 14.5 %San Juan County14.5Kit Carson County: 14.1 %Kit Carson County14.1Montrose County: 14.1 %Montrose County14.1Otero County: 13.7 %Otero County13.7Arapahoe County: 12.6 %Arapahoe County12.6San Miguel County: 11.6 %San Miguel County11.6Pueblo County: 9.9 %Pueblo County9.9Dolores County: 9.8 %Dolores County9.8Las Animas County: 9.7 %Las Animas County9.7Summit County: 9 %Summit County9Pitkin County: 8.9 %Pitkin County8.9Moffat County: 8.7 %Moffat County8.7Cheyenne County: 8.7 %Cheyenne County8.7Sedgwick County: 8.1 %Sedgwick County8.1Boulder County: 7.9 %Boulder County7.9Crowley County: 7.9 %Crowley County7.9Bent County: 7.7 %Bent County7.7Lincoln County: 7.6 %Lincoln County7.6Logan County: 7.5 %Logan County7.5El Paso County: 7.1 %El Paso County7.1Delta County: 6.9 %Delta County6.9Jefferson County: 5.9 %Jefferson County5.9Broomfield County: 5.9 %Broomfield County5.9Routt County: 5.8 %Routt County5.8Clear Creek County: 5.6 %Clear Creek County5.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Costilla County31.1-4.2 pts
2Conejos County26.1+1.3 pts
3Garfield County24.6+0.7 pts
4Adams County23.9+0.6 pts
5Yuma County23+1.5 pts
6Phillips County22.9-3.1 pts
7Eagle County22.4+0.7 pts
8Saguache County20.1+0.5 pts
9Alamosa County19.4+0.9 pts
10Morgan County18.3-0 pts
11Prowers County18.1-0.4 pts
12Rio Grande County17.7-1.1 pts
13Lake County17-0 pts
14Weld County16.7-0.1 pts
15Denver County16.5-1 pts
16San Juan County14.5-3.8 pts
17Kit Carson County14.1+0.8 pts
18Montrose County14.1-0.9 pts
19Otero County13.7-0.1 pts
20Arapahoe County12.6+0.5 pts
21San Miguel County11.6-0.8 pts
22Pueblo County9.9-0.5 pts
23Dolores County9.8-1.2 pts
24Las Animas County9.7-0.6 pts
25Summit County9+0.7 pts
26Pitkin County8.9+1.5 pts
27Moffat County8.7-1.1 pts
28Cheyenne County8.7+0.6 pts
29Sedgwick County8.1+0.7 pts
30Boulder County7.9+0.2 pts
30Crowley County7.9-1.8 pts
32Bent County7.7+0.1 pts
33Lincoln County7.6+0.8 pts
34Logan County7.5+2.2 pts
35El Paso County7.1-0.1 pts
36Delta County6.9+0.3 pts
37Jefferson County5.9+0.1 pts
38Broomfield County5.9+0.1 pts
39Routt County5.8+1.4 pts
40Clear Creek County5.6-0.5 pts
41Washington County5.5+0.5 pts
42La Plata County5.4+0.3 pts
43Huerfano County5.3-0.1 pts
44Mesa County5.3+0.3 pts
45Larimer County5.2-0.2 pts
46Grand County5.2-0.3 pts
47Rio Blanco County5.10 pts
48Gunnison County5-0.1 pts
49Archuleta County4.8-2.2 pts
50Kiowa County4.7+0.2 pts
51Montezuma County4.3-1.1 pts
52Douglas County3.9+0.1 pts
53Fremont County3.8-0.6 pts
54Elbert County3.6+0.6 pts
55Chaffee County3.4+0.1 pts
56Gilpin County3.3+0.4 pts
57Hinsdale County2.9+1.9 pts
58Ouray County2.9-0.3 pts
59Baca County2-0.9 pts
60Teller County1.9+0.2 pts
61Jackson County1.7+1 pts
62Custer County1.2-0 pts
62Park County1.2-0.2 pts
64Mineral County0.1+0.1 pts

Other periods

About this ranking

People aged 5 and over who speak Spanish 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 or Hispanic origin. Hispanic origin is hispanic_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 Spanish 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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 Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs (Counties in Colorado by population speaking Spanish at home, 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat

MLA 9

American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs, Counties in Colorado by population speaking Spanish at home, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat. Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/colorado-counties?period=2023. 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 Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs. Counties in Colorado by population speaking Spanish at home, 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat. Also distributed by Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/colorado-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs, Counties in Colorado by population speaking Spanish at home, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat, via Invokely: https://invokely.ai/rankings/spanish-spoken-at-home/colorado-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs: Counties in Colorado by population speaking Spanish at home, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/colorado-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak Spanish 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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 Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs: Counties in Colorado by population speaking Spanish at home, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat
L2  - https://invokely.ai/rankings/spanish-spoken-at-home/colorado-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/colorado-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak Spanish 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/2023/table-based-SF/data/5YRData/acsdt5y2023-c16001.dat. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest population speaking Spanish at home?

Costilla County, with 31.1% in 2023, according to the U.S. Census Bureau.

Which county has the lowest population speaking Spanish at home?

Mineral County, with 0.1% in 2023.

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 Spanish at home, as a percentage of the population aged 5 and over, calculated with stored inputs. Retrieved 2026-10-12.

Population speaking Spanish at home: other rankings

Counties in Colorado: more rankings