St. John, MO

View of St. John, MO
Image credit: Paul Sableman / CC BY 2.0
Population
6,441
U.S. Census Population Estimates Program · 2025
Elevation
645 ft
Median Home Value
$106,300
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,159/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$53,755
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About St. John

St. John is a quiet suburb in St. Louis County, situated just minutes southeast of St. Louis Lambert International Airport. Home to around 6,500 residents, the city offers affordable, established neighborhoods with an easygoing community feel. Everyday shopping and local eateries are clustered along St. Charles Rock Road, while quick access to I-70 and I-170 makes commuting to downtown St. Louis, Clayton, or nearby job centers simple and direct.

Most local students attend schools in the Ritenour School District, with a smaller section served by Normandy Schools. For recreation, residents head to the North Athletic Complex and neighborhood parks for youth sports leagues, afternoon walks, and community gatherings. Its compact size and central location in north county make St. John a practical, low-key home base with quick access to everything the wider St. Louis metro area has to offer.

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