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World Population Review
Washington County, Idaho Population 2021
Washington County, Idaho's estimated population is 10,352 with a growth rate of 0.77% in the past year according to the most recent United States census data. Washington County, Idaho is the 30th largest county in Idaho. The 2010 Population was 10,177 and has seen a growth of 1.72% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 10,352 | 79 | 0.77% |
| 2020 | 10,273 | 79 | 0.77% |
| 2019 | 10,194 | 79 | 0.78% |
| 2018 | 10,115 | 64 | 0.64% |
| 2017 | 10,051 | 19 | 0.19% |
| 2016 | 10,032 | 141 | 1.43% |
| 2015 | 9,891 | -64 | -0.64% |
| 2014 | 9,955 | 39 | 0.39% |
| 2013 | 9,916 | -114 | -1.14% |
| 2012 | 10,030 | -106 | -1.05% |
| 2011 | 10,136 | -41 | -0.40% |
| 2010 | 10,177 | 1,627 | 19.03% |
| 1990 | 8,550 | -253 | -2.87% |
| 1980 | 8,803 | 1,170 | 15.33% |
| 1970 | 7,633 | -745 | -8.89% |
| 1960 | 8,378 | -198 | -2.31% |
| 1950 | 8,576 | -277 | -3.13% |
| 1940 | 8,853 | 891 | 11.19% |
| 1930 | 7,962 | -1,462 | -15.51% |
| 1920 | 9,424 | -1,677 | -15.11% |
| 1910 | 11,101 | 4,219 | 61.30% |
| 1900 | 6,882 | 3,046 | 79.41% |
| 1890 | 3,836 | 2,957 | 336.41% |
| 1880 | 879 | 0.00% |
2021 Growth Rate
0.77%
County Website
State
Founded
February 20, 1879
County Seat
Lat./Long.
2010 Population
10,177
Growth Since 2010
1.72%
Washington County, Idaho Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 8,834 | 87.84% |
| Some Other Race | 738 | 7.34% |
| Two or More Races | 329 | 3.27% |
| American Indian and Alaska Native | 100 | 0.99% |
| Asian | 37 | 0.37% |
| Black or African American | 19 | 0.19% |
Washington County, Idaho Population by Race
Washington County, Idaho Population Pyramid $2021
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Washington County, Idaho Population by Age
Washington County, Idaho Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 4,035 | 2.46 | 72.5 |
| Married | 2,049 | 3.02 | 84.4 |
| Non Family | 1,327 | 1.15 | 64.8 |
| Female | 505 | 3.24 | 42.6 |
| Male | 154 | 3.68 | 79.9 |
3.04
Average Family Size
2.46
Average Household Size
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Washington County, Idaho Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 474 | 6.66% |
| 9th to 12th Grade | 592 | 8.31% |
| High School Graduate | 2,406 | 33.79% |
| Some College | 1,916 | 26.91% |
| Associates Degree | 569 | 7.99% |
| Bachelors Degree | 722 | 10.14% |
| Graduate Degree | 442 | 6.21% |
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Washington County, Idaho Educational Attainment by Sex (over 25)
Washington County, Idaho Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 5,827 | 5,213 | 1,075 |
| Hispanic | 1,011 | 651 | 45 |
| Other Race | 451 | 265 | 8 |
| 2+ Races | 195 | 165 | 25 |
| Native American | 98 | 44 | |
| Asian | 37 | 29 | 19 |
| Black | 2 | 2 |
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 asian people with a rate of 51.35%.
Washington County, Idaho Educational Attainment by Race
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$25,161
Average Earnings
$31,515
Average Male
$17,280
Average Female
Washington County, Idaho Earnings by Educational Attainment
Washington County, Idaho Language by Age
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Washington County, Idaho Language
88.51% of Washington County, Idaho residents speak only English, while 11.49% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 10.77% of the population.
Washington County, Idaho Language
Washington County, Idaho Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 7,865 | 1,021 | 12.98% |
| Hispanic | 1,700 | 280 | 16.47% |
| Other | 738 | 143 | 19.38% |
| Asian | 37 | 13 | 35.14% |
| Native | 96 | 8 | 8.33% |
| Multiple | 327 | 6 | 1.83% |
13.33%
Overall Poverty Rate
11.61%
Male Poverty Rate
14.96%
Female Poverty Rate
Poverty in Washington County, Idaho
The race most likely to be in poverty in Washington County, Idaho is Asian, with 35.14% below the poverty level.
The race least likely to be in poverty in Washington County, Idaho is Multiple, with 1.83% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.75%. Among those working part-time, it was 18.84%, and for those that did not work, the poverty rate was 11.05%.
Washington County, Idaho Poverty
Washington County, Idaho Poverty Rate by Education
Washington County, Idaho Marital Status
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Marriage Rates
53.9%
Overall Marriage Rate
52.2%
Male Marriage Rate
55.5%
Female Marriage Rate
Washington County, Idaho Married by Age and Sex
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Washington 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 55-64.
Washington County, Idaho Marital Status by Race
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Washington County, Idaho Marital Status
Washington County, Idaho Veterans by War
Washington County, Idaho Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 645 | 9.37% |
| Hispanic | 34 | 3.06% |
| Native American | 32 | 32.00% |
| 2+ Races | 29 | 14.65% |
Washington County, Idaho Veterans by Race
Washington County, Idaho Veterans by Education
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4.72%
Veteran Poverty Rate
45.64%
Veteran Disability Rate
Washington County, Idaho Veterans by Education
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54.1%
Labor Force Participation
51.8%
Employment Rate
4.2%
Unemployment Rate
Washington County, Idaho Employment by Age
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Washington County, Idaho Employment by Race
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Washington 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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93.71%
Native Born
6.29%
Foreign Born
4.69%
Non Citizen
1.60%
Naturalized
Place of Birth
93.71% of Washington County, Idaho residents were born in the United States, with 41.59% having been born in Idaho. 4.69% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Washington 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