St. Peters, MO Census Data
Key demographic and economic indicators for St. Peters, Missouri from the 2023 American Community Survey (ACS) 5-year estimates.
Updated: 2026-03-23 · Source: U.S. Census Bureau, ACS 2023
Population
58,200
47.1% male · 52.9% female
Median Age
41.1
2.4 above the national average (38.7 yrs)
Median Household Income
$89,827
11,289.0 above the national average ($78,538)
Bachelor's Degree or Higher
39.7%
4.7 above the national average (35.0%)
HS diploma or higher: 96.2%
Poverty Rate
5.1%
7.3 below the national average (12.4%)
Uninsured: 3.9%
Broadband Access
96.7%
7.0 above the national average (89.7%)
Median Home Value
$252,800
Median rent: $1,291 · 81% owner-occupied
Unemployment Rate
2.3%
Labor force participation: 66.7%
Demographics
Race & Ethnicity
Age Distribution
Commute to Work
St. Peters, MO Frequently Asked Questions
What is the population of St. Peters, MO?
The population of St. Peters, MO is 58,200 according to the 2023 American Community Survey 5-year estimates. The median age is 41.1 years.
What is the median household income in St. Peters?
The median household income in St. Peters, MO is $89,827, above the national average of $78,538. Per capita income is $49,314.
What is the poverty rate in St. Peters?
The poverty rate in St. Peters, MO is 5.1%, compared to the national average of 12.4%. About 3.9% of residents lack health insurance.
What percentage of St. Peters residents have a college degree?
39.7% of adults (25+) in St. Peters hold a bachelor's degree or higher, and 96.2% have at least a high school diploma. The national average for bachelor's degree holders is 35.0%.
What is the median home value in St. Peters?
The median home value in St. Peters, MO is $252,800. Median rent is $1,291 per month, with 81% of housing units owner-occupied.
What is the racial makeup of St. Peters?
St. Peters's population is 85.8% White, 5.4% Black, 2.8% Hispanic or Latino, and 2.4% Asian (source: 2023 ACS).