Old Jamestown, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Old Jamestown, Missouri had a total population of 20,651, the 37th largest community in Missouri, with a median household income of $99,521, which is 41% higher than the state average. The poverty rate is 7.4%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 41% above the state average — one of the wealthiest communities in Missouri.
- 39.6% of adults hold a bachelor's degree or higher — top 10% in Missouri.
- Housing is very affordable with a home-value-to-income ratio of just 2.4x.
Old Jamestown Quick Facts
How Old Jamestown 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 | 21,121 | 20,651 | -2.2% |
| Median household income | $107,250 | $99,521 | -7.2% |
| Median home value | $230,100 | $236,100 | +2.6% |
How Old Jamestown 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
Moderate diversity with one or two groups making up the majority.
State average: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Old Jamestown 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 Old Jamestown
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Arnold | 20,956 | $78,370 | $220,000 | 25.4% | 8.2% |
| Manchester | 18,160 | $97,801 | $323,100 | 62.4% | 6.4% |
| Concord | 18,368 | $89,038 | $303,600 | 42.0% | 3.9% |
| Affton | 19,052 | $79,539 | $212,400 | 36.6% | 6.7% |
| Raymore | 24,526 | $104,447 | $339,100 | 36.1% | 5.0% |
Population Overview
Old Jamestown is a small city located in Missouri, within St. Louis County. The total population is 20,651. It ranks as the 37th most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Old Jamestown is 41.1 years. This is 5% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Old Jamestown is $99,521. This is 41% higher than the state median of $70,702. It is also 23% higher than the national median of $80,734. The poverty rate stands at 7.4%. This is 41% lower than the state poverty rate of 12.6%. The unemployment rate is 5.6%. This is 38% higher than the state rate of 4.0%. The median home value is $236,100. Housing costs are 3% higher than the state median of $230,300. With a home-value-to-income ratio of just 2.4x, Old Jamestown is one of the most affordable housing markets in the area. 87.3% of occupied housing units are owner-occupied. This homeownership rate is 28% higher than the state average of 68.1%.
Race & Ethnicity
The largest racial or ethnic group in Old Jamestown is Black or African American, making up 67.5% of the population. White (non-Hispanic) residents account for 20.1%. The White (non-Hispanic) population (20.1%) is well below the state average of 76.3%. The Black or African American population is significantly higher than the state average (67.5% vs 10.9%).
Education
39.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Old Jamestown in the top 10% of all cities in the state for educational attainment. This is 22% higher 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 94.3%. Notably, 20.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Old Jamestown, 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 Old Jamestown, Missouri?
Old Jamestown, Missouri has a population of 20,651 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Old Jamestown, MO?
The median household income in Old Jamestown is $99,521, which is 23% higher than the national median of $80,734.
What is the poverty rate in Old Jamestown, MO?
The poverty rate in Old Jamestown is 7.4%. This means approximately 1,467 residents live below the federal poverty line.
What is the racial makeup of Old Jamestown, Missouri?
Old Jamestown's population is 20.1% White, 67.5% Black, 4.2% Hispanic/Latino, and 1.4% Asian.
What is the median home value in Old Jamestown, MO?
The median home value in Old Jamestown is $236,100. The home-value-to-income ratio is 2.4x.
How educated is Old Jamestown, Missouri?
39.6% of adults (25+) in Old Jamestown hold a bachelor's degree or higher, and 20.1% hold a graduate or professional degree.