Spanish Lake, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Spanish Lake, Missouri had a total population of 17,873, the 48th largest community in Missouri, with a median household income of $55,920, which is 21% lower than the state average. The poverty rate is 14.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 2.4x.
Spanish Lake Quick Facts
How Spanish Lake 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 | 18,183 | 17,873 | -1.7% |
| Median household income | $51,125 | $55,920 | +9.4% |
| Median home value | $121,300 | $135,600 | +11.8% |
How Spanish Lake 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: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Spanish Lake Rankings in Missouri
Explore Missouri Rankings
Other Cities in St. Louis County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Florissant | 51,773 | $65,318 | 10.1% | $148,800 |
| Chesterfield | 49,574 | $133,037 | 3.9% | $472,500 |
| Oakville | 35,333 | $106,362 | 6.4% | $318,600 |
| Wildwood | 35,133 | $161,060 | 2.2% | $495,800 |
| University City | 34,685 | $80,694 | 14.5% | $306,700 |
| Ballwin | 31,279 | $124,626 | 4.8% | $377,100 |
| Mehlville | 29,805 | $67,071 | 7.8% | $218,400 |
| Kirkwood | 29,363 | $121,270 | 5.3% | $451,400 |
| Maryland Heights | 27,880 | $86,436 | 4.7% | $227,000 |
| Hazelwood | 25,114 | $55,908 | 15.9% | $167,400 |
Cities Similar to Spanish Lake
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Farmington | 18,282 | $53,729 | $196,500 | 16.3% | 15.9% |
| Kirksville | 17,563 | $50,071 | $153,900 | 40.3% | 28.2% |
| Hannibal | 16,771 | $53,721 | $127,700 | 19.6% | 19.5% |
| Ferguson | 18,213 | $47,524 | $109,900 | 21.3% | 24.2% |
| Warrensburg | 19,582 | $57,067 | $222,200 | 37.8% | 16.2% |
Population Overview
Spanish Lake is a small city located in Missouri, within St. Louis County. The total population is 17,873. It ranks as the 48th most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Spanish Lake is 33.0 years. This is 15% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Spanish Lake is $55,920. This is 21% lower than the state median of $70,702. It is also 31% lower than the national median of $80,734. The poverty rate stands at 14.8%. This is 17% higher than the state poverty rate of 12.6%. The unemployment rate is 7.2%. This is 79% higher than the state rate of 4.0%. The median home value is $135,600. Housing costs are 41% lower than the state median of $230,300. With a home-value-to-income ratio of just 2.4x, Spanish Lake is one of the most affordable housing markets in the area. 49.2% of occupied housing units are owner-occupied. This homeownership rate is 28% lower than the state average of 68.1%.
Race & Ethnicity
The largest racial or ethnic group in Spanish Lake is Black or African American, making up 80.3% of the population. White (non-Hispanic) residents account for 14.1%. The White (non-Hispanic) population (14.1%) is well below the state average of 76.3%. The Black or African American population is significantly higher than the state average (80.3% vs 10.9%). The Hispanic or Latino population (1.2%) is well below the state average of 5.2%. The Asian population (0.6%) is well below the state average of 2.1%.
Education
14.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% lower than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 89.6%.
Data Sources & Methodology
All demographic data for Spanish Lake, Missouri 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 Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. 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 Spanish Lake, Missouri?
Spanish Lake, Missouri has a population of 17,873 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Spanish Lake, MO?
The median household income in Spanish Lake is $55,920, which is 31% lower than the national median of $80,734.
What is the poverty rate in Spanish Lake, MO?
The poverty rate in Spanish Lake is 14.8%. This means approximately 2,586 residents live below the federal poverty line.
What is the racial makeup of Spanish Lake, Missouri?
Spanish Lake's population is 14.1% White, 80.3% Black, 1.2% Hispanic/Latino, and 0.6% Asian.
What is the median home value in Spanish Lake, MO?
The median home value in Spanish Lake is $135,600. The home-value-to-income ratio is 2.4x.
How educated is Spanish Lake, Missouri?
14.3% of adults (25+) in Spanish Lake hold a bachelor's degree or higher, and 5.4% hold a graduate or professional degree.