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World Population Review
Custer County, Idaho Population 2021
Custer County, Idaho's estimated population is 4,445 with a growth rate of 1.48% in the past year according to the most recent United States census data. Custer County, Idaho is the 40th largest county in Idaho. The 2010 Population was 4,357 and has seen a growth of 2.02% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 4,445 | 65 | 1.48% |
| 2020 | 4,380 | 65 | 1.51% |
| 2019 | 4,315 | 65 | 1.53% |
| 2018 | 4,250 | 115 | 2.78% |
| 2017 | 4,135 | 51 | 1.25% |
| 2016 | 4,084 | 25 | 0.62% |
| 2015 | 4,059 | -73 | -1.77% |
| 2014 | 4,132 | -93 | -2.20% |
| 2013 | 4,225 | -102 | -2.36% |
| 2012 | 4,327 | 2 | 0.05% |
| 2011 | 4,325 | -32 | -0.73% |
| 2010 | 4,357 | 224 | 5.42% |
| 1990 | 4,133 | 748 | 22.10% |
| 1980 | 3,385 | 418 | 14.09% |
| 1970 | 2,967 | -29 | -0.97% |
| 1960 | 2,996 | -322 | -9.70% |
| 1950 | 3,318 | -231 | -6.51% |
| 1940 | 3,549 | 387 | 12.24% |
| 1930 | 3,162 | -388 | -10.93% |
| 1920 | 3,550 | 549 | 18.29% |
| 1910 | 3,001 | 952 | 46.46% |
| 1900 | 2,049 | -127 | -5.84% |
| 1890 | 2,176 | 0.00% |
2021 Growth Rate
1.48%
County Website
State
Founded
January 8, 1881
County Seat
Lat./Long.
2010 Population
4,357
Growth Since 2010
2.02%
Custer County, Idaho Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 3,807 | 91.32% |
| Two or More Races | 266 | 6.38% |
| American Indian and Alaska Native | 46 | 1.10% |
| Some Other Race | 45 | 1.08% |
| Black or African American | 5 | 0.12% |
Custer County, Idaho Population by Race
Custer County, Idaho Population Pyramid $2021
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Custer County, Idaho Population by Age
Custer County, Idaho Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 1,774 | 2.29 | 78.6 |
| Married | 994 | 2.84 | 91.9 |
| Non Family | 662 | 1.05 | 62.7 |
| Female | 87 | 4.18 | 50.6 |
| Male | 31 | 5.74 | 74.2 |
2.93
Average Family Size
2.29
Average Household Size
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Custer County, Idaho Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 83 | 2.60% |
| 9th to 12th Grade | 256 | 8.01% |
| High School Graduate | 913 | 28.58% |
| Some College | 840 | 26.29% |
| Associates Degree | 324 | 10.14% |
| Bachelors Degree | 601 | 18.81% |
| Graduate Degree | 178 | 5.57% |
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Custer County, Idaho Educational Attainment by Sex (over 25)
Custer County, Idaho Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 2,889 | 2,608 | 654 |
| 2+ Races | 139 | 139 | 89 |
| Hispanic | 125 | 68 | |
| Native American | 46 | 45 | 36 |
| Other Race | 45 | 4 |
The highest rate of high school graduation is among 2+ races people with a rate of 100.00%.
The highest rate of bachelors degrees is among native american people with a rate of 78.26%.
Custer County, Idaho Educational Attainment by Race
Custer County, Idaho Earnings by Educational Attainment
Custer County, Idaho Language by Age
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Custer County, Idaho Language
98.09% of Custer County, Idaho residents speak only English, while 1.91% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.76% of the population.
Custer County, Idaho Language
Custer County, Idaho Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 3,698 | 712 | 19.25% |
| Multiple | 266 | 25 | 9.40% |
| Hispanic | 165 | 20 | 12.12% |
| Black | 3 | 3 | 100.00% |
18.39%
Overall Poverty Rate
16.67%
Male Poverty Rate
20.20%
Female Poverty Rate
Poverty in Custer County, Idaho
The race most likely to be in poverty in Custer County, Idaho is Black, with 100.00% below the poverty level.
The race least likely to be in poverty in Custer County, Idaho is Multiple, with 9.40% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 4.41%. Among those working part-time, it was 32.36%, and for those that did not work, the poverty rate was 20.00%.
Custer County, Idaho Poverty
Custer County, Idaho Poverty Rate by Education
Custer County, Idaho Marital Status
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Marriage Rates
56.4%
Overall Marriage Rate
55.4%
Male Marriage Rate
57.5%
Female Marriage Rate
Custer County, Idaho Married by Age and Sex
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Custer County, Idaho Marriage
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is Over 65.
Custer County, Idaho Marital Status by Race
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Custer County, Idaho Marital Status
Custer County, Idaho Veterans by War
Custer County, Idaho Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 539 | 16.52% |
Custer County, Idaho Veterans by Race
Custer County, Idaho Veterans by Education
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3.34%
Veteran Poverty Rate
52.88%
Veteran Disability Rate
Custer County, Idaho Veterans by Education
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42.3%
Labor Force Participation
40.8%
Employment Rate
3.6%
Unemployment Rate
Custer County, Idaho Employment by Age
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Custer County, Idaho Employment by Race
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Custer County, Idaho Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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99.40%
Native Born
0.60%
Foreign Born
0.43%
Non Citizen
0.17%
Naturalized
Place of Birth
99.40% of Custer County, Idaho residents were born in the United States, with 50.23% having been born in Idaho. 0.43% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Custer County, Idaho Place of Birth
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990