HomeMissouriSt. Louis CountySt. John
St. John, Missouri: commercial real estate data.
St. John is a Census city of 6,527 people across 1.42 square miles of land, in St. Louis County. Median household income is $53,755, 58.6 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
St. John
What St. John is
- Census place typecity
- Land area1.42 sq mi
- Water area0 sq mi
- Population per square mile of land4,584
- County holding the largest share of its areaSt. Louis County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
St. John
How many people live in St. John
- Population6,527
- Median age36.0
- Population under 181,444 plus or minus 408
- Share under 1822.1 percent plus or minus 6.2
- Population 65 and over1,047 plus or minus 274
- Share 65 and over16.0 percent plus or minus 4.2
- Households2,741
- Family households1,678
- Share of households that are families61.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
St. John
Income and work in St. John
- Median household income$53,755
- Per capita income$28,849
- Civilian labor force3,347
- Employed3,136
- Unemployed211 plus or minus 147
- Unemployment rate6.3 percent plus or minus 4.3
- Adults 25 and over4,815
- Adults 25 and over with a high school diploma or higher86.8 percent
- Adults 25 and over with a bachelor degree or higher19.9 percent plus or minus 5.2
- Adults 25 and over with a graduate degree6.4 percent plus or minus 2.9
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
St. John
Housing in St. John
- Housing units2,875
- Occupied units2,741
- Vacant units134 plus or minus 152
- Vacancy rate4.7 percent plus or minus 5.3
- Owner occupied1,606
- Renter occupied1,135 plus or minus 295
- Ownership rate58.6 percent
- Median owner-occupied home value$106,300
- Median gross rent, monthly$1,159
- Annual rent as a share of median income25.9 percent
- Single family units2,599
- Share single family90.4 percent
- Units in buildings of two or more276 plus or minus 173
- Share in buildings of two or more9.6 percent plus or minus 5.9
- Mobile homes0
- Median year structure built1951
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
St. John
How St. John gets to work
- Workers 16 and over who commute2,740
- Commuting under 15 minutes587 plus or minus 270
- Share commuting under 15 minutes21.4 percent plus or minus 9.3
- Commuting 30 minutes or more760 plus or minus 254
- Share commuting 30 minutes or more27.7 percent plus or minus 8.3
- Drove alone77.8 percent
- Carpooled5.4 percent plus or minus 4.3
- Public transport0.5 percent plus or minus 0.9
- Walked0.6 percent plus or minus 0.9
- Worked from home11.7 percent plus or minus 6.1
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
St. John
Flood risk in St. John
- NFIP communityCity of St. John
- NFIP community number290384
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date02/04/15
The City of St. John participates in the National Flood Insurance Program as community 290384 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
St. Louis County, not St. John
St. Louis County context, not St. John figures
- Establishments in St. Louis County29,717
- Covered employment, St. Louis County596,676
- Average annual pay, St. Louis County$75,926
- Housing units permitted, St. Louis County1,193
Every figure in this section is published for St. Louis County as a whole and is not a measurement of St. John.
All St. Louis County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
St. John questions, answered from the record.
How many people live in St. John, Missouri?
6,527, in 2,741 households. St. John city covers 1.42 square miles of land, which is 4,584 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is St. John in?
St. Louis County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in St. John?
$53,755. The median owner-occupied home is valued at $106,300. Median gross rent is $1,159 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is St. John in the National Flood Insurance Program?
Yes. St. John appears in the FEMA Community Status Book as St. John, city of, community 290384, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page St. John figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for St. Louis County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of St. John.
Is zoning published for St. John?
No. Nothing on this page presents parcel level zoning.