State Line, Idaho Demographics & Population 2026
During the 2020–2024 ACS period, State Line, Idaho had a total population of 9, the 231st largest city in Idaho, with a median household income of $48,750, which is 37% lower than the state average. The poverty rate is 11.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 37% below the state average, indicating significant economic challenges.
State Line Quick Facts
How State Line 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 | 3 | 9 | +200.0% |
How State Line Compares
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+)
State Line Rankings in Idaho
Explore Idaho Rankings
Other Cities in Kootenai County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Coeur d'Alene | 56,447 | $72,338 | 9.2% | $483,500 |
| Post Falls | 43,391 | $82,183 | 11.1% | $477,400 |
| Hayden | 16,338 | $82,958 | 7.8% | $494,500 |
| Rathdrum | 10,874 | $86,563 | 12.4% | $444,100 |
| Dalton Gardens | 2,496 | $80,000 | 4.6% | $803,600 |
| Spirit Lake | 1,972 | $65,192 | 6.7% | $436,600 |
| Hauser | 932 | $74,792 | 5.8% | $375,700 |
| Hayden Lake | 834 | $108,750 | 8.3% | $792,700 |
| Athol | 777 | $70,250 | 8.9% | $367,700 |
| Rockford Bay | 336 | $125,192 | 8.6% | $1,112,900 |
Cities Similar to State Line
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Yellow Pine | 17 | N/A | N/A | 0.0% | 0.0% |
| Spencer | 19 | $74,219 | N/A | 0.0% | 5.3% |
| Coolin | 24 | N/A | N/A | 0.0% | 0.0% |
| Princeton | 25 | N/A | N/A | 0.0% | 0.0% |
| Drummond | 3 | N/A | N/A | 0.0% | 0.0% |
A note before these figures: with a population of 9, State Line'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
State Line is a small community located in Idaho, within Kootenai County. The total population is 9. It ranks as the 231st most populous out of 232 Census-designated places in Idaho.
Age Demographics
The median age in State Line is 26.5 years. This is 29% lower than the state median of 37.3 years. With 33.3% of the population under 18, State Line has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in State Line is $48,750. This is 37% lower than the state median of $77,800. It is also 40% lower than the national median of $80,734. The poverty rate stands at 11.1%. This is 5% higher than the state poverty rate of 10.6%. The survey records no unemployed residents in State Line, which reflects the size of the sample rather than a labor market without joblessness. 66.7% of occupied housing units are owner-occupied. This homeownership rate is 8% lower than the state average of 72.1%.
Race & Ethnicity
Every resident counted in State Line 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
20.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 37% 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 60.0%.
Data Sources & Methodology
All demographic data for State Line, 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.
Free data download: Get all Idaho city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of State Line, Idaho?
State Line, Idaho has a population of 9 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in State Line, ID?
The median household income in State Line is $48,750, which is 40% lower than the national median of $80,734.
What is the poverty rate in State Line, ID?
The poverty rate in State Line is 11.1%. This means approximately 1 residents live below the federal poverty line.
What is the racial makeup of State Line, Idaho?
State Line's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in State Line, ID?
The Census Bureau does not publish a reliable median home value estimate for State Line — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is State Line, Idaho?
20.0% of adults (25+) in State Line hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.