Boundary County, Idaho Demographics 2026
Boundary County, Idaho has a population of 13,172, the 25th most populous county in Idaho. The median household income is $67,237 and the median home value is $410,500. The poverty rate is 13.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Boundary County Quick Facts
How Boundary County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 12,695 | 13,172 | +3.8% |
| Median household income | $62,438 | $67,237 | +7.7% |
| Median home value | $344,100 | $410,500 | +19.3% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 36 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Boundary County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Bonners Ferry | 2,669 | $52,500 | 13.4% | $281,400 |
| Moyie Springs | 1,378 | $61,615 | 14.7% | $356,800 |
Explore Idaho Rankings
Population Overview
Boundary County is located in Idaho with a total population of 13,172. It is the 25th most populous county out of 44 in Idaho. The county encompasses 2 Census-designated places.
Age Demographics
The median age in Boundary County is 43.7 years. This is 17% higher than the state median of 37.3 years.
Economy, Income & Housing
The median household income in Boundary County is $67,237. This is 14% lower than the state median of $77,800. It is also 17% lower than the national median of $80,734. The poverty rate stands at 13.7%. This is 29% higher than the state poverty rate of 10.6%. The unemployment rate is 2.6%. This is 31% lower than the state rate of 3.7%. The median home value is $410,500. Housing costs are 2% lower than the state median of $418,600. The home-value-to-income ratio of 6.1x suggests that housing affordability is a significant concern for many residents. 75.3% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 72.1%.
Race & Ethnicity
The largest racial or ethnic group in Boundary County is White (non-Hispanic), making up 81.5% of the population. Hispanic or Latino residents account for 5.7%. The Black or African American population (0.3%) is well below the state average of 0.7%. The Hispanic or Latino population (5.7%) is well below the state average of 13.7%. The Asian population is significantly higher than the state average (2.1% vs 1.3%).
Education
24.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 24% lower than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 86.1%.
Data Sources & Methodology
All figures for Boundary County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Idaho and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Boundary County, Idaho?
Boundary County has a population of 13,172, making it the 25th most populous county in Idaho.
What is the median income in Boundary County?
The median household income in Boundary County is $67,237 with a poverty rate of 13.7%.
How many cities are in Boundary County, Idaho?
Boundary County contains 2 Census-designated places.