Bruneau, Idaho Demographics & Population 2026

A note before these figures: with a population of 82, Bruneau's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Bruneau is a small community located in Idaho, within Owyhee County. The total population is 82. It ranks as the 216th most populous out of 232 Census-designated places in Idaho.

Age Demographics

The median age in Bruneau is 77.1 years. This is 107% higher than the state median of 37.3 years. Only 14.6% of residents are under 18, indicating fewer families with children. 53.7% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Bruneau is $40,375. This is 48% lower than the state median of $77,800. It is also 50% lower than the national median of $80,734. The ACS records no residents below the poverty line in Bruneau. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Bruneau, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $228,800. Housing costs are 45% lower than the state median of $418,600. The home-value-to-income ratio is 5.7x. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 39% higher than the state average of 72.1%.

Race & Ethnicity

Every resident counted in Bruneau was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

8.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 73% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Bruneau, Idaho is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Idaho state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 232 Census-designated places in Idaho. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.