Blaine County, Idaho Population 2021

Blaine County, Idaho's estimated population is 23,521 with a growth rate of 1.07% in the past year according to the most recent United States census data. Blaine County, Idaho is the 18th largest county in Idaho. The 2010 Population was 21,295 and has seen a growth of 10.45% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202123,5212501.07%
202023,2712501.09%
201923,0212501.10%
201822,7713981.78%
201722,3733111.41%
201622,0624261.97%
201521,6361810.84%
201421,4551300.61%
201321,3251980.94%
201221,127440.21%
201121,083-212-1.00%
201021,2957,74357.14%
199013,5523,71137.71%
19809,8414,09271.18%
19705,7491,15125.03%
19604,598-786-14.60%
19505,384891.68%
19405,2951,52740.53%
19303,768-705-15.76%
19204,473-3,914-46.67%
19108,3873,48771.16%
19004,9000.00%
2021 Growth Rate
1.07%
County Website
State
Founded
March 5, 1895
County Seat
2010 Population
21,295
Growth Since 2010
10.45%
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Blaine County, Idaho Population Growth

Population by Race

Race Population Percentage
White21,20694.78%
Two or More Races3591.60%
Some Other Race2761.23%
Asian2371.06%
American Indian and Alaska Native1590.71%
Black or African American980.44%
Native Hawaiian and Other Pacific Islander380.17%
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Blaine County, Idaho Population by Race

Blaine County, Idaho Population Pyramid $2021

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Blaine County, Idaho Median Age

43.2


Total

41.9


Male

45.2


Female

Blaine County, Idaho Adults

There are 17,410 adults, (3,977 of whom are seniors) in Blaine County, Idaho.

Blaine County, Idaho Age Dependency

66.6

Age Dependency Ratio

29.6

Old Age Dependency Ratio

36.9

Child Dependency Ratio

Blaine County, Idaho Sex Ratio

Female

10,852

48.50%

Male

11,521

51.50%

Blaine County, Idaho Population by Age

Blaine County, Idaho Renter vs Owner Occupied by Household Type

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Blaine County, Idaho Household Types

Type Owner Renter
Married79.3%20.7%
All70.1%29.9%
Female64%36%
Non Family60.2%39.8%
Male54%46%

70.1%

Rate of Home Ownership

Blaine County, Idaho Households and Families

Type Count Average Size Owned
All7,9952.7570.1
Married4,0543.1979.3
Non Family3,0091.2760.2
Female7175.464
Male2156.3354

3.58

Average Family Size

2.75

Average Household Size

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Blaine County, Idaho Households by Type

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Education Attained Count Percentage
Less Than 9th Grade7514.74%
9th to 12th Grade1,0456.59%
High School Graduate4,05225.55%
Some College3,18920.11%
Associates Degree1,2137.65%
Bachelors Degree3,74923.64%
Graduate Degree1,86011.73%
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Blaine County, Idaho Educational Attainment by Sex (over 25)

Blaine County, Idaho Educational Attainment by Race

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Race Total High School Bachelors
White12,71512,2565,234
Hispanic2,6681,392272
2+ Races279788
Asian237179121
Other Race191126126
Native American159159
Islander383820
Black2828

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among other race people with a rate of 65.97%.

Blaine County, Idaho Educational Attainment by Race

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Name Average Male Female
Overall$36,872$43,026$30,159
Less Than 9th Grade$25,569$27,343$20,968
High School Graduate$31,381$32,323$25,582
Some College$36,028$43,447$29,429
Bachelors Degree$50,947$57,000$45,246
Graduate Degree$46,910$68,814$45,113

$36,872

Average Earnings

$43,026

Average Male

$30,159

Average Female

Blaine County, Idaho Earnings by Educational Attainment

Blaine County, Idaho Language by Age

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Blaine County, Idaho Language

77.70% of Blaine County, Idaho residents speak only English, while 22.30% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 20.32% of the population.

Blaine County, Idaho Language

Blaine County, Idaho Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic5,0491,58031.29%
White16,6661,1907.14%
Other27618265.94%
Asian2374619.41%
Black982020.41%
Multiple35971.95%

12.53%

Overall Poverty Rate

11.87%

Male Poverty Rate

13.22%

Female Poverty Rate

Poverty in Blaine County, Idaho

The race most likely to be in poverty in Blaine County, Idaho is Other, with 65.94% below the poverty level.

The race least likely to be in poverty in Blaine County, Idaho is Multiple, with 1.95% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.63%. Among those working part-time, it was 10.17%, and for those that did not work, the poverty rate was 20.85%.

Blaine County, Idaho Poverty

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Name Poverty
Less Than 9th Grade16.92%
High School9.12%
Bachelors or Greater8.24%
Some College4.48%

Blaine County, Idaho Poverty Rate by Education

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Rate Poverty
Male Unemployed7.25%
Male Employed6.23%
Female Employed4.57%
Female Unemployed0.00%

Blaine County, Idaho Poverty Rate by Employment Status and Sex

Blaine County, Idaho Income by Household Type

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Name Median Mean
Households$56,694$82,455
Families$71,306$97,505
Married Families$77,695-
Non Families$38,950$55,839
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Income by Household Type

Blaine County, Idaho Marital Status

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Marriage Rates

57.4%

Overall Marriage Rate

58.6%

Male Marriage Rate

56.0%

Female Marriage Rate

Blaine County, Idaho Married by Age and Sex

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Blaine County, Idaho Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Blaine County, Idaho Marital Status by Race

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Blaine County, Idaho Marital Status

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1,453

Number of Veterans

1,414

Male Veterans

39

Female Veterans

War Veterans
Vietnam413
First Gulf War367
Second Gulf War336
World War II122
Korea60

Blaine County, Idaho Veterans by War

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Age Group Veterans
35 to 54500
75+443
65 to 74337
18 to 34103
55 to 6470

Blaine County, Idaho Veterans by Age

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Name Veterans % of Total
White1,4188.62%
Asian2811.81%
Hispanic110.35%
2+ Races72.40%

Blaine County, Idaho Veterans by Race

Blaine County, Idaho Veterans by Education

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3.23%

Veteran Poverty Rate

25.12%

Veteran Disability Rate

Blaine County, Idaho Veterans by Education

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69.7%

Labor Force Participation

68.3%

Employment Rate

2%

Unemployment Rate

Blaine County, Idaho Employment by Age

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Blaine County, Idaho Employment by Race

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Blaine 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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34.09%

Born in Blaine County, Idaho

84.33%

Native Born

15.67%

Foreign Born

10.78%

Non Citizen

4.89%

Naturalized

Place of Birth

84.33% of Blaine County, Idaho residents were born in the United States, with 34.09% having been born in Idaho. 10.78% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Blaine 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