Demographics of Owyhee County, Idaho

Owyhee County, Idaho had 12,661 people on July 1, 2025, by the Census Bureau’s estimate: +668 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Owyhee County, in four figures

12,661
Population: July 1, 2025, Vintage 2025 estimate.; +5.6%
Change since July 2020: +668 people.; 39.0 ±1.4
Median age: ACS 2020–⁠2024.; $64,406 ±$9,360
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Owyhee County, Idaho's population grew 5.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Owyhee County, Idaho's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Owyhee County, Idaho's population grew 5.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Owyhee County, Idaho's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	11,993	100.0	100.0
2021	12,360	103.1	100.2
2022	12,642	105.4	100.7
2023	12,765	106.4	101.6
2024	12,764	106.4	102.5
2025	12,661	105.6	103.1

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Population of Owyhee County, Idaho on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	11,993	+81	+6	0	+80
2021	12,360	+367	+6	+2	+373
2022	12,642	+282	0	+8	+267
2023	12,765	+123	+22	+48	+53
2024	12,764	−1	+28	+68	−96
2025	12,661	−103	+32	+17	−149

Age, 2020–2024

The median age is 39.0 ±1.4: for men 38.3 ±1.4 and for women 40.1 ±1.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Owyhee County by age, ACS 2020–2024
Age	People	Share	Idaho	United States
Under 5	738 ±81	5.9% ±0.7	5.9% ±<0.1	5.6% ±<0.1
5 to 17	2,318 ±204	18.5% ±1.6	18.2% ±0.2	16.3% ±<0.1
18 to 24	1,039 ±198	8.3% ±1.6	9.8% ±0.1	9.1% ±<0.1
25 to 44	2,959 ±221	23.7% ±1.8	26.1% ±0.2	26.9% ±<0.1
45 to 64	3,035 ±238	24.3% ±1.9	23.0% ±0.2	24.8% ±<0.1
65 and over	2,414 ±243	19.3% ±1.9	17.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $64,406 ±$9,360, and income per person $28,436 ±$2,071, in 2024 dollars. The median is $77,800 ±$743 in Idaho and $80,734 ±$166 in the United States.

Households by income

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Households in Owyhee County by income, ACS 2020–2024
Household income	Households	Share	Idaho	United States
Under $25,000	764 ±173	17.6% ±3.9	12.5% ±0.3	14.6% ±<0.1
$25,000 to $49,999	717 ±155	16.5% ±3.5	17.6% ±0.4	16.7% ±<0.1
$50,000 to $74,999	905 ±211	20.9% ±4.8	18.1% ±0.4	15.5% ±<0.1
$75,000 to $99,999	832 ±144	19.2% ±3.3	14.7% ±0.4	12.6% ±<0.1
$100,000 to $149,999	766 ±160	17.7% ±3.6	19.3% ±0.4	17.5% ±<0.1
$150,000 to $199,999	179 ±72	4.1% ±1.7	8.7% ±0.3	9.6% ±<0.1
$200,000 or more	176 ±66	4.1% ±1.5	9.2% ±0.3	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Owyhee County by age, ACS 2020–2024
Age	Below poverty	Rate	Idaho	United States
All ages	1,511 ±324	12.2% ±2.6	10.6% ±0.3	12.5% ±0.1
Under 18	506 ±156	16.9% ±5.0	12.4% ±0.5	16.1% ±0.1
18 to 59	731 ±175	12.1% ±2.8	10.4% ±0.3	11.6% ±0.1
60 and over	274 ±89	8.3% ±2.6	9.1% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Owyhee County, ACS 2020–2024
Measure	Owyhee County	Idaho	United States
Housing units	4,869 ±35	795,014 ±223	143,775,355 ±10,234
Occupied	89.1% ±2.9	89.7% ±0.3	89.9% ±0.1
Vacant	10.9% ±2.9	10.3% ±0.3	10.1% ±0.1
Owner occupied	72.6% ±5.0	72.1% ±0.4	65.2% ±0.3
Renter occupied	27.4% ±4.8	27.9% ±0.4	34.8% ±0.1
Median home value	$359,800 ±$31,346	$418,600 ±$2,550	$332,700 ±$236
Median gross rent	$821 ±$122	$1,238 ±$16	$1,413 ±$2
Median year built	1984 ±3	1991 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Owyhee County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Idaho	United States
Hispanic or Latino	3,103 ±0	24.8% ±<0.1	13.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	8,479 ±162	67.8% ±1.3	78.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 150	0% to 1.2%	0.7% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 38	0% to 0.3%	1.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	243 ±108	1.9% ±0.9	0.7% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 60	0% to 0.5%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 75	0% to 0.6%	0.6% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	535 ±178	4.3% ±1.4	4.2% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Owyhee County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Idaho	United States
Born in the state	6,282 ±351	50.2% ±2.8	43.9% ±0.3	57.3% ±<0.1
Born in another state	4,727 ±358	37.8% ±2.9	49.1% ±0.3	26.9% ±<0.1
Born a citizen outside the states	63 to 231	0.5% to 1.8%	1.0% ±0.1	1.7% ±<0.1
Born abroad	1,347 ±201	10.8% ±1.6	5.9% ±0.2	14.1% ±<0.1
Naturalized citizens	306 ±130	2.4% ±1.0	2.7% ±0.1	7.4% ±<0.1
Not citizens	1,041 ±228	8.3% ±1.8	3.2% ±0.2	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Owyhee County among the counties of Idaho

28th of 44 by population, July 2025. Every one is listed on the Idaho page.

Counties of Idaho near Owyhee County in population, July 2025
County	July 2025	Change since 2020
Fremont County	14,208	+5.9%
Shoshone County	14,130	+7.1%
Boundary County	13,997	+15.3%
Teton County	13,254	+12.9%
Valley County	12,831	+8.4%
Owyhee County	12,661	+5.6%
Washington County	11,583	+9.7%
Benewah County	10,508	+9.7%
Clearwater County	9,118	+4.1%
Boise County	8,545	+11.5%
Lemhi County	8,474	+6.5%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026