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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

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St. John in context.

OverallBest places in MissouriPopulation rankingHighest population places in MissouriNearest larger communityUniversity City, Missouri3.5 miles away · 34,657 residents.

About St. John

Saint John is a city in St. Louis County, Missouri, situated immediately southeast of the St. Louis Lambert International Airport. Centered around the commercial corridor of St. Charles Rock Road and operating as a inner-ring residential suburb, the community of approximately 6,527 is served by the Ritenour School District for public education locally.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingNearby Hospital Emergency DepartmentsA+97.9rating

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