With 59,092 people, St. Peters is a city in Missouri. Few US cities rank higher on income. Owners hold 79% of the housing stock. Households here earn about 30% more than in Missouri as a whole. 4% of people here were born outside the United States. There are 2,629 people per square mile.
At a glance
Wealthier
median household income $91,637, above the US median
US median: $82,259
Older
median age 41.0
US median: 38.9
Average education
39% hold a bachelor's degree
US average: 36%
Less affordable
home values up 31%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about St. Peters
What changed most since 1990
Median age29.8 → 41.0(+11.2 years)US over the same years: +6.0 years
Median home value (2024 dollars)$206,646 → $269,900(+31%)US over the same years: +67%
White share95.5% → 85.0%(−10.5 pts)US over the same years: −17.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)24.2%(799)
US avg: 26.4%
Gulf War (1990s)21.8%(721)
US avg: 24.3%
Vietnam era36%(1,191)
US avg: 33.1%
Korean War2.3%(76)
US avg: 4.5%
World War II0.6%(19)
US avg: 1%
Share of the 3,308 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
St. Peters, decade by decade
St. Peters population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
45,779
$108,718
$206,646
25.5%
10.9
2000
51,381
$105,470
$205,847
27.2%
16.1
2010
52,575
$101,096
$246,715
31.6%
23.0
2020
57,732
$97,107
$232,590
39.1%
39.3
2024
59,092
$91,637
$269,900
39.2%
33.9
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
