Data / Rankings / Population speaking Spanish at home / Counties in Idaho

Counties in Idaho by population speaking Spanish at home

Clark County had the highest population speaking Spanish at home of 44 counties in 2021, at 37.1%. Nez Perce County had the lowest, at 1.1%. The median was 5.6% and the figure for Idaho was 8.1%. Source: the U.S. Census Bureau.

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Highest37.1Clark County
Lowest1.1Nez Perce County
Median5.644 counties
Idaho8.1History

Map of counties, 2021

Ada County: 4.5 %Adams County: 1.6 %Bannock County: 2.8 %Bear Lake County: 3.5 %Benewah County: 1.6 %Bingham County: 12 %Blaine County: 21.1 %Boise County: 2.8 %Bonner County: 1.4 %Bonneville County: 8.3 %Boundary County: 1.1 %Butte County: 5.2 %Camas County: 5.3 %Canyon County: 16.6 %Caribou County: 4.4 %Cassia County: 17.9 %Clark County: 37.1 %Clearwater County: 2.3 %Custer County: 3 %Elmore County: 9.2 %Franklin County: 4.1 %Fremont County: 11.7 %Gem County: 6.5 %Gooding County: 24.6 %Idaho County: 2.1 %Jefferson County: 9.8 %Jerome County: 31.6 %Kootenai County: 2.1 %Latah County: 1.7 %Lemhi County: 1.1 %Lewis County: 2.2 %Lincoln County: 26 %Madison County: 6.6 %Minidoka County: 25.4 %Nez Perce County: 1.1 %Oneida County: 6 %Owyhee County: 21.4 %Payette County: 11.5 %Power County: 26.4 %Shoshone County: 1.8 %Teton County: 13.1 %Twin Falls County: 11.8 %Valley County: 2.7 %Washington County: 12.6 %
  • Under 1.9
  • 1.9 to 2.9
  • 2.9 to 5.6
  • 5.6 to 12
  • 12 to 21
  • 21 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Clark County: 37.1 %Clark County37.1Jerome County: 31.6 %Jerome County31.6Power County: 26.4 %Power County26.4Lincoln County: 26 %Lincoln County26Minidoka County: 25.4 %Minidoka County25.4Gooding County: 24.6 %Gooding County24.6Owyhee County: 21.4 %Owyhee County21.4Blaine County: 21.1 %Blaine County21.1Cassia County: 17.9 %Cassia County17.9Canyon County: 16.6 %Canyon County16.6Teton County: 13.1 %Teton County13.1Washington County: 12.6 %Washington County12.6Bingham County: 12 %Bingham County12Twin Falls County: 11.8 %Twin Falls County11.8Fremont County: 11.7 %Fremont County11.7Payette County: 11.5 %Payette County11.5Jefferson County: 9.8 %Jefferson County9.8Elmore County: 9.2 %Elmore County9.2Bonneville County: 8.3 %Bonneville County8.3Madison County: 6.6 %Madison County6.6Gem County: 6.5 %Gem County6.5Oneida County: 6 %Oneida County6Camas County: 5.3 %Camas County5.3Butte County: 5.2 %Butte County5.2Ada County: 4.5 %Ada County4.5Caribou County: 4.4 %Caribou County4.4Franklin County: 4.1 %Franklin County4.1Bear Lake County: 3.5 %Bear Lake County3.5Custer County: 3 %Custer County3Bannock County: 2.8 %Bannock County2.8Boise County: 2.8 %Boise County2.8Valley County: 2.7 %Valley County2.7Clearwater County: 2.3 %Clearwater County2.3Lewis County: 2.2 %Lewis County2.2Idaho County: 2.1 %Idaho County2.1Kootenai County: 2.1 %Kootenai County2.1Shoshone County: 1.8 %Shoshone County1.8Latah County: 1.7 %Latah County1.7Adams County: 1.6 %Adams County1.6Benewah County: 1.6 %Benewah County1.6Bonner County: 1.4 %Bonner County1.4Boundary County: 1.1 %Boundary County1.1Lemhi County: 1.1 %Lemhi County1.1Nez Perce County: 1.1 %Nez Perce County1.1Clark County: 37.1 %Clark County37.1Jerome County: 31.6 %Jerome County31.6Power County: 26.4 %Power County26.4Lincoln County: 26 %Lincoln County26Minidoka County: 25.4 %Minidoka County25.4Gooding County: 24.6 %Gooding County24.6Owyhee County: 21.4 %Owyhee County21.4Blaine County: 21.1 %Blaine County21.1Cassia County: 17.9 %Cassia County17.9Canyon County: 16.6 %Canyon County16.6Teton County: 13.1 %Teton County13.1Washington County: 12.6 %Washington County12.6Bingham County: 12 %Bingham County12Twin Falls County: 11.8 %Twin Falls County11.8Fremont County: 11.7 %Fremont County11.7Payette County: 11.5 %Payette County11.5Jefferson County: 9.8 %Jefferson County9.8Elmore County: 9.2 %Elmore County9.2Bonneville County: 8.3 %Bonneville County8.3Madison County: 6.6 %Madison County6.6Gem County: 6.5 %Gem County6.5Oneida County: 6 %Oneida County6Camas County: 5.3 %Camas County5.3Butte County: 5.2 %Butte County5.2Ada County: 4.5 %Ada County4.5Caribou County: 4.4 %Caribou County4.4Franklin County: 4.1 %Franklin County4.1Bear Lake County: 3.5 %Bear Lake County3.5Custer County: 3 %Custer County3Bannock County: 2.8 %Bannock County2.8Boise County: 2.8 %Boise County2.8Valley County: 2.7 %Valley County2.7Clearwater County: 2.3 %Clearwater County2.3Lewis County: 2.2 %Lewis County2.2Idaho County: 2.1 %Idaho County2.1Kootenai County: 2.1 %Kootenai County2.1Shoshone County: 1.8 %Shoshone County1.8Latah County: 1.7 %Latah County1.7Adams County: 1.6 %Adams County1.6Benewah County: 1.6 %Benewah County1.6Bonner County: 1.4 %Bonner County1.4Boundary County: 1.1 %Boundary County1.1Lemhi County: 1.1 %Lemhi County1.1Nez Perce County: 1.1 %Nez Perce County1.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Clark County37.1
2Jerome County31.6
3Power County26.4
4Lincoln County26
5Minidoka County25.4
6Gooding County24.6
7Owyhee County21.4
8Blaine County21.1
9Cassia County17.9
10Canyon County16.6
11Teton County13.1
12Washington County12.6
13Bingham County12
14Twin Falls County11.8
15Fremont County11.7
16Payette County11.5
17Jefferson County9.8
18Elmore County9.2
19Bonneville County8.3
20Madison County6.6
21Gem County6.5
22Oneida County6
23Camas County5.3
24Butte County5.2
25Ada County4.5
26Caribou County4.4
27Franklin County4.1
28Bear Lake County3.5
29Custer County3
30Bannock County2.8
31Boise County2.8
32Valley County2.7
33Clearwater County2.3
34Lewis County2.2
35Idaho County2.1
36Kootenai County2.1
37Shoshone County1.8
38Latah County1.7
39Adams County1.6
39Benewah County1.6
41Bonner County1.4
42Boundary County1.1
43Lemhi County1.1
44Nez Perce County1.1

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/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Idaho by population speaking Spanish at home, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Idaho by population speaking Spanish at home, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-c16001.dat. Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/idaho-counties?period=2021. 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 Idaho by population speaking Spanish at home, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-c16001.dat. Also distributed by Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/idaho-counties?period=2021.

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 Idaho by population speaking Spanish at home, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-c16001.dat, via Invokely: https://invokely.ai/rankings/spanish-spoken-at-home/idaho-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_idaho_by_2021,
  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 Idaho by population speaking Spanish at home, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-c16001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/idaho-counties?period=2021. 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/2021/table-based-SF/data/5YRData/acsdt5y2021-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 Idaho by population speaking Spanish at home, 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-c16001.dat
L2  - https://invokely.ai/rankings/spanish-spoken-at-home/idaho-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/spanish-spoken-at-home/idaho-counties?period=2021.
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/2021/table-based-SF/data/5YRData/acsdt5y2021-c16001.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population speaking Spanish at home?

Clark County, with 37.1% in 2021, according to the U.S. Census Bureau.

Which county has the lowest population speaking Spanish at home?

Nez Perce County, with 1.1% 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 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 Idaho: more rankings