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
20214,445651.48%
20204,380651.51%
20194,315651.53%
20184,2501152.78%
20174,135511.25%
20164,084250.62%
20154,059-73-1.77%
20144,132-93-2.20%
20134,225-102-2.36%
20124,32720.05%
20114,325-32-0.73%
20104,3572245.42%
19904,13374822.10%
19803,38541814.09%
19702,967-29-0.97%
19602,996-322-9.70%
19503,318-231-6.51%
19403,54938712.24%
19303,162-388-10.93%
19203,55054918.29%
19103,00195246.46%
19002,049-127-5.84%
18902,1760.00%
2021 Growth Rate
1.48%
County Website
State
Founded
January 8, 1881
County Seat
2010 Population
4,357
Growth Since 2010
2.02%
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Custer County, Idaho Population Growth

Population by Race

Race Population Percentage
White3,80791.32%
Two or More Races2666.38%
American Indian and Alaska Native461.10%
Some Other Race451.08%
Black or African American50.12%
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Custer County, Idaho Population by Race

Custer County, Idaho Population Pyramid $2021

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Custer County, Idaho Median Age

53


Total

53.4


Male

52.7


Female

Custer County, Idaho Adults

There are 3,497 adults, (1,368 of whom are seniors) in Custer County, Idaho.

Custer County, Idaho Age Dependency

95.8

Age Dependency Ratio

64.3

Old Age Dependency Ratio

31.6

Child Dependency Ratio

Custer County, Idaho Sex Ratio

Female

2,022

48.50%

Male

2,147

51.50%

Custer County, Idaho Population by Age

Custer County, Idaho Renter vs Owner Occupied by Household Type

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Custer County, Idaho Household Types

Type Owner Renter
Married91.9%8.1%
All78.6%21.4%
Male74.2%25.8%
Non Family62.7%37.3%
Female50.6%49.4%

78.6%

Rate of Home Ownership

Custer County, Idaho Households and Families

Type Count Average Size Owned
All1,7742.2978.6
Married9942.8491.9
Non Family6621.0562.7
Female874.1850.6
Male315.7474.2

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 Grade832.60%
9th to 12th Grade2568.01%
High School Graduate91328.58%
Some College84026.29%
Associates Degree32410.14%
Bachelors Degree60118.81%
Graduate Degree1785.57%
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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
White2,8892,608654
2+ Races13913989
Hispanic12568
Native American464536
Other Race454

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

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Name Average Male Female
Overall$32,105$40,837$20,446
Less Than 9th Grade$18,676$19,632$
High School Graduate$20,750$39,038$16,493
Some College$31,818$52,622$17,500
Bachelors Degree$33,994$30,750$34,101
Graduate Degree$$$

$32,105

Average Earnings

$40,837

Average Male

$20,446

Average Female

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
White3,69871219.25%
Multiple266259.40%
Hispanic1652012.12%
Black33100.00%

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

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Name Poverty
High School26.61%
Some College15.23%
Bachelors or Greater7.96%
Less Than 9th Grade4.80%

Custer County, Idaho Poverty Rate by Education

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Rate Poverty
Female Unemployed100.00%
Male Unemployed25.81%
Female Employed14.67%
Male Employed6.77%

Custer County, Idaho Poverty Rate by Employment Status and Sex

Custer County, Idaho Income by Household Type

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Name Median Mean
Households$40,875$52,046
Families$53,125$64,562
Married Families$56,173-
Non Families$18,659$30,734
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Income by Household Type

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

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539

Number of Veterans

528

Male Veterans

11

Female Veterans

War Veterans
Vietnam302
World War II123
First Gulf War39
Korea20
Second Gulf War18

Custer County, Idaho Veterans by War

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Age Group Veterans
65 to 74258
75+176
55 to 6449
35 to 5445
18 to 3411

Custer County, Idaho Veterans by Age

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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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50.23%

Born in Custer County, Idaho

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

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources