St. Peters city, Missouri Demographics & Population 2026
As of 2026, St. Peters city, Missouri has a total population of 58,200, the 11th largest city in Missouri, with a median household income of $89,827, which is 30% higher than the state average. The poverty rate is 5.1%.
Key Takeaways
- Household income is 30% above the state average — one of the wealthiest communities in Missouri.
- 39.7% of adults hold a bachelor's degree or higher — top 10% in Missouri.
- Near full employment with an unemployment rate of just 2.3%.
St. Peters city Quick Facts
How St. Peters city Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
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: 39 | National average: 60
Education
Educational Attainment (Adults 25+)
St. Peters city Rankings in Missouri
Explore Missouri Rankings
Cities Similar to St. Peters city
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Blue Springs city | 59,416 | $84,075 | $241,500 | 34.6% | 7.0% |
| St. Charles city | 71,048 | $85,522 | $280,800 | 44.2% | 6.0% |
| Florissant city | 51,915 | $66,344 | $136,200 | 22.7% | 9.5% |
| Wentzville city | 45,734 | $111,409 | $302,700 | 39.4% | 4.6% |
| Chesterfield city | 49,591 | $133,380 | $458,000 | 72.4% | 3.3% |
Population Overview
St. Peters city is a mid-sized community located in Missouri. The total population is 58,200. It ranks as the 11th most populous out of 1,062 cities and towns in Missouri.
Age Demographics
The median age in St. Peters city is 41.1 years. This is 6% higher than the state median of 38.9 years.
Economy, Income & Housing
The median household income in St. Peters city is $89,827. This is 30% higher than the state median of $68,920. Compared to the national median of $78,538, household income here is 14% higher. The poverty rate stands at 5.1%. This is 60% lower than the state poverty rate of 12.6%. The unemployment rate is 2.3%. This is 43% lower than the state rate of 4.1%. The median home value is $252,800. Housing costs are 17% higher than the state median of $215,600. With a home-value-to-income ratio of just 2.8x, St. Peters city is one of the most affordable housing markets in the area. 80.9% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 67.9%.
Race & Ethnicity
The largest racial or ethnic group in St. Peters city is White (non-Hispanic), making up 84.9% of the population. Black or African American residents account for 5.3%. The Black or African American population (5.3%) is well below the state average of 11.0%.
Education
39.7% of residents aged 25 and older hold a bachelor's degree or higher. This places St. Peters city in the top 10% of all cities in the state for educational attainment. This is 24% higher than the state rate of 31.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.2%.
Data Sources & Methodology
All demographic data for St. Peters city, Missouri is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. 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. For official data, visit data.census.gov.
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Frequently Asked Questions
What is the population of St. Peters city, Missouri?
St. Peters city, Missouri has a population of 58,200 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in St. Peters city, MO?
The median household income in St. Peters city is $89,827, which is 14% higher the national median of $78,538.
What is the poverty rate in St. Peters city, MO?
The poverty rate in St. Peters city is 5.1%. This means approximately 2,921 residents live below the federal poverty line.
What is the racial makeup of St. Peters city, Missouri?
St. Peters city's population is 84.9% White, 5.3% Black, 2.8% Hispanic/Latino, and 2.4% Asian.
What is the median home value in St. Peters city, MO?
The median home value in St. Peters city is $252,800. The home-value-to-income ratio is 2.8x.
How educated is St. Peters city, Missouri?
39.7% of adults (25+) in St. Peters city hold a bachelor's degree or higher, and 14.4% hold a graduate or professional degree.