St. Maries, Idaho Demographics & Population 2026
During the 2020–2024 ACS period, St. Maries, Idaho had a total population of 2,915, the 57th largest city in Idaho, with a median household income of $60,458, which is 22% lower than the state average. The poverty rate is 12.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
St. Maries Quick Facts
How St. Maries 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 | 3,032 | 2,915 | -3.9% |
| Median household income | $52,468 | $60,458 | +15.2% |
| Median home value | $205,400 | $236,300 | +15.0% |
How St. Maries 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+)
St. Maries Rankings in Idaho
Explore Idaho Rankings
Other Cities in Benewah County
Cities Similar to St. Maries
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Filer | 2,925 | $64,671 | $247,500 | 11.9% | 5.1% |
| Wendell | 2,981 | $57,266 | $242,100 | 11.9% | 8.3% |
| Homedale | 3,069 | $62,117 | $238,000 | 6.9% | 16.8% |
| Montpelier | 2,694 | $61,375 | $240,300 | 15.1% | 7.8% |
| Soda Springs | 3,158 | $57,361 | $241,400 | 11.8% | 12.0% |
Population Overview
St. Maries is a small community located in Idaho, within Benewah County. The total population is 2,915. It ranks as the 57th most populous out of 232 Census-designated places in Idaho.
Age Demographics
The median age in St. Maries is 41.1 years. This is 10% higher than the state median of 37.3 years.
Economy, Income & Housing
The median household income in St. Maries is $60,458. This is 22% lower than the state median of $77,800. It is also 25% lower than the national median of $80,734. The poverty rate stands at 12.7%. This is 20% higher than the state poverty rate of 10.6%. The unemployment rate is 5.0%. This is 33% higher than the state rate of 3.7%. The median home value is $236,300. Housing costs are 44% lower than the state median of $418,600. The home-value-to-income ratio is 3.9x. 62.3% of occupied housing units are owner-occupied. This homeownership rate is 14% lower than the state average of 72.1%.
Race & Ethnicity
St. Maries has a predominantly White (non-Hispanic) population, comprising 93.2% of all residents. Hispanic or Latino residents account for 2.7%. The Black or African American population (0.1%) is well below the state average of 0.7%. The Hispanic or Latino population (2.7%) is well below the state average of 13.7%.
Education
16.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 47% 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 90.2%.
Data Sources & Methodology
All demographic data for St. Maries, 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.
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Frequently Asked Questions
What is the population of St. Maries, Idaho?
St. Maries, Idaho has a population of 2,915 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in St. Maries, ID?
The median household income in St. Maries is $60,458, which is 25% lower than the national median of $80,734.
What is the poverty rate in St. Maries, ID?
The poverty rate in St. Maries is 12.7%. This means approximately 359 residents live below the federal poverty line.
What is the racial makeup of St. Maries, Idaho?
St. Maries's population is 93.2% White, 0.1% Black, 2.7% Hispanic/Latino, and 0.0% Asian.
What is the median home value in St. Maries, ID?
The median home value in St. Maries is $236,300. The home-value-to-income ratio is 3.9x.
How educated is St. Maries, Idaho?
16.9% of adults (25+) in St. Maries hold a bachelor's degree or higher, and 4.1% hold a graduate or professional degree.