Cool Valley, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Cool Valley, Missouri had a total population of 1,411, the 327th largest city in Missouri, with a median household income of $53,560, which is 24% lower than the state average. The poverty rate is 28.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- More than 1 in 4 residents live below the poverty line (28.8%), well above the national average of 12.4%.
- Housing is very affordable with a home-value-to-income ratio of just 1.9x.
Cool Valley Quick Facts
How Cool Valley 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 | 1,319 | 1,411 | +7.0% |
| Median household income | $50,417 | $53,560 | +6.2% |
| Median home value | $94,700 | $102,800 | +8.6% |
How Cool Valley 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+)
Cool Valley 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 Cool Valley
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Auxvasse | 1,452 | $56,307 | $132,600 | 28.3% | 29.8% |
| Shell Knob | 1,486 | $54,925 | $321,700 | 25.0% | 14.7% |
| Steele | 1,493 | $54,600 | $119,200 | 17.8% | 24.3% |
| Pierce City | 1,477 | $51,121 | $135,600 | 5.8% | 31.8% |
| Tarkio | 1,471 | $56,927 | $87,800 | 23.1% | 14.4% |
Population Overview
Cool Valley is a small community located in Missouri, within St. Louis County. The total population is 1,411. It ranks as the 327th most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Cool Valley is 27.3 years. This is 30% lower than the state median of 39.0 years. With 34.2% of the population under 18, Cool Valley has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Cool Valley is $53,560. This is 24% lower than the state median of $70,702. It is also 34% lower than the national median of $80,734. The poverty rate stands at 28.8%. This is 129% higher than the state poverty rate of 12.6%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 6.7%. This is 66% higher than the state rate of 4.0%. The median home value is $102,800. Housing costs are 55% lower than the state median of $230,300. With a home-value-to-income ratio of just 1.9x, Cool Valley is one of the most affordable housing markets in the area. 62.7% of occupied housing units are owner-occupied. This homeownership rate is 8% lower than the state average of 68.1%.
Race & Ethnicity
Cool Valley has a predominantly Black or African American population, comprising 89.0% of all residents. White (non-Hispanic) residents account for 7.3%. The White (non-Hispanic) population (7.3%) is well below the state average of 76.3%. The Black or African American population is significantly higher than the state average (89.0% vs 10.9%). The Hispanic or Latino population (1.5%) is well below the state average of 5.2%.
Education
12.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 63% 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 94.4%.
Data Sources & Methodology
All demographic data for Cool Valley, 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 Cool Valley, Missouri?
Cool Valley, Missouri has a population of 1,411 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Cool Valley, MO?
The median household income in Cool Valley is $53,560, which is 34% lower than the national median of $80,734.
What is the poverty rate in Cool Valley, MO?
The poverty rate in Cool Valley is 28.8%. This means approximately 406 residents live below the federal poverty line.
What is the racial makeup of Cool Valley, Missouri?
Cool Valley's population is 7.3% White, 89.0% Black, 1.5% Hispanic/Latino, and 1.8% Asian.
What is the median home value in Cool Valley, MO?
The median home value in Cool Valley is $102,800. The home-value-to-income ratio is 1.9x.
How educated is Cool Valley, Missouri?
12.1% of adults (25+) in Cool Valley hold a bachelor's degree or higher, and 4.2% hold a graduate or professional degree.