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St. John, MO

City in St. Louis County, Missouri. ZIP codes: 63114.

Population

6,527

Land area

1.4sq mi

People per sq mi

4,584

ZIP codes

1

St. John and its ZIP codes

Full map

St. John at a glance

  • St. John is about 51 times as dense as Missouri as a whole.
  • By population, it ranks 119th among 1,062 cities and towns in Missouri.
  • The median household income is $53,755, 24% below the Missouri median of $70,702.
  • A typical owner-occupied home is valued at $106,300 (54% below Missouri) and median rent is $1,159 a month.

Local data for St. John, MO

Counts from official public data

Housing and community stats

St. John, MO, American Community Survey 2020-2024

Full profile

Median household income

$53,755

Poverty rate

15.4%

Median home value

$106,300

Median rent

$1,159/mo

Homeownership

58.6%

Bachelor's or higher

19.9%

Median age

36.0

Average commute

22.8 min

Largest reported origins and ancestries: German Americans (693), Irish Americans (580), Mexican Americans (561).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for St. Louis County. PPP loans are for St. John.

Details

Unemployment rate

4.2%

Aug 2026, -0.3 pts in a year

Average annual pay

$78,741

589,803 jobs, 2025

Income per person

$104,775

BEA, 2024

Federal spending

$15.6B

FY 2026, $15,488 per person

St. Louis County economyFederal spending

How people get to work

St. John, MO, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone77.8%
  • Carpooled5.4%
  • Public transit0.5%
  • Walked0.6%
  • Bicycle0.0%
  • Taxi, ride-hailing, motorcycle or other3.9%
  • Worked from home11.7%

Average one-way commute: 22.8 minutes for people who do not work from home.

Environment and hazard risk

St. John, MO, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively High

Top: heat wave

Storm events since 1996

1,321

Countywide, mostly hail

Flood insurance policies

2,070

0.6% of homes, county

July high / Jan low

90° / 24°F

41.7 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in St. John, MO, CDC PLACES estimates

All 40 measures

Obesity

39.0%

U.S. 33.3% +5.7 pts

Diabetes

14.7%

U.S. 12.1% +2.6 pts

Smoking

23.1%

U.S. 12.8% +10.3 pts

Uninsured (18-64)

13.0%

U.S. 11.1% +1.9 pts

ZIP codes in St. John

1 in or overlapping St. John. Population shown

·

Cities near St. John

NameDistanceLand area (sq mi)
Sycamore HillsVillage0.7 mi0.1
CharlackCity0.7 mi0.3
Bel-RidgeVillage0.9 mi0.8
Breckenridge HillsCity1.4 mi0.8
Vinita ParkCity1.5 mi0.8
Woodson TerraceCity1.5 mi0.8
Bel-NorVillage1.6 mi0.6
OverlandCity1.7 mi4.4
Bellerive AcresCity1.8 mi0.3
EdmundsonCity2 mi0.3
Hanley HillsVillage2.1 mi0.4
KinlochCity2.1 mi0.7
GreendaleCity2.1 mi0.2
NormandyCity2.3 mi1.9
Cool ValleyCity2.4 mi0.5
St. AnnCity2.6 mi3.2

Frequently asked questions

What county is St. John, MO in?
St. John is in St. Louis County, Missouri.
What ZIP codes are in St. John, MO?
ZIP codes in or overlapping St. John include 63114.
What is the population of St. John, MO?
About 6,527 people live in St. John, based on American Community Survey 5-year estimates.
What cities are near St. John?
Nearby places include Sycamore Hills (0.7 mi), Charlack (0.7 mi), Bel-Ridge (0.9 mi), Breckenridge Hills (1.4 mi), Vinita Park (1.5 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023