State profile · MO
Missouri ZIP Codes
Demographics, income, and housing across every ZIP code in Missouri, benchmarked against all 50 states, DC and Puerto Rico.
- 1,022
- ZIP codes
- 5,989,092
- Population
- $66,851
- Avg ZIP income
- 114
- Counties
The verdict
Texas leads ZIP coverage at 1,935 ZCTAs (#1 of 52). That is not the income board: New Jersey's unweighted average ZIP household income is $121,992 (#1 of 52) on 595 ZCTAs. Missouri sits #7 of 52 by ZIP count at income #41.
- Texas
- ZIP-count #1 (1,935)
- New Jersey
- income #1 ($121,992)
- #7
- of 52 by ZIP count
- #41
- of 52 by avg income
ZIP-count and income are separate boards among 52 reporting states and territories. Income is the unweighted mean of each ZIP's ACS 2019–2023 median household income, so a rural code counts the same as a dense metro.
Mid-to-lower income footing ($66,851) on a substantial ZIP map (1,022 codes · population 5,989,092). Home values average $191,126. Cost-of-living questions belong at county and ZIP scale here: the state average mixes unlike labor markets. Start from the most populous counties, then drop to a thin-edge ZIP to see whether the mean is a real center or a blend.
The largest city, Saint Louis (927,396), holds a moderate share (~15%) of state ZIP population. Expect a primary metro plus a long tail of mid-size markets: the top-cities chart and county RankBars both matter, and a two-ZIP compare inside vs outside Saint Louis usually beats reading the state average alone.
A mid-breadth ZIP set is small enough that city pages and the top-12 ZIP RankBars cover most contrast. Use county drill-downs when two metros sit in different economic zones; otherwise jump straight from this profile to a ZIP compare.
Largest cities in Missouri
Top 10 cities by population in Missouri
Total resident population aggregated from every ZIP code the Census assigns to each city.
- Saint Louis
Saint Louis, MO
927,396 residents
- Kansas City
Kansas City, MO
545,132 residents
- Springfield 219,752
Springfield, MO
219,752 residents
- Columbia 139,474
Columbia, MO
139,474 residents
- Saint Charles 134,684
Saint Charles, MO
134,684 residents
- Independence 123,373
Independence, MO
123,373 residents
- Florissant 108,973
Florissant, MO
108,973 residents
- Lees Summit 96,149
Lees Summit, MO
96,149 residents
- Ballwin 92,608
Ballwin, MO
92,608 residents
- O Fallon 89,535
O Fallon, MO
89,535 residents
What this shows Saint Louis leads, but several peers sit close enough that this top-10 chart is a shortlist, not a single-city story – compare two of those metros before trusting the state mean.
Counties in Missouri
Which cities have the most ZIPs in Missouri?
Side-by-side: Compare 63376 vs 63021 →
ZIP Codes in Missouri
More MO ZIP codes
Official Data Resources for Missouri
Cost-of-living reads should start with Census ACS household fields, then FBI UCR county context when safety inputs sit next to income in Missouri.
Frequently Asked Questions
How should I navigate Missouri's mid-breadth ZIP map?
With 1,022 ZIPs across 114 counties (population 5,989,092), city pages plus the top ZIP RankBars cover most contrast. Jump to a two-ZIP compare when two metros sit in different labor markets rather than scrolling the full list.
Why is Missouri's average ZIP income a weak relocation signal by itself?
At $66,851, the state mean blends unlike county labor markets (homes average $191,126). Cost-of-living questions belong at county and ZIP scale: start from the most populous counties, then drop to a thin-edge ZIP to see whether the mean is a real center or a blend.
Which Missouri cities should I open first?
Start with Saint Louis (927,396, ~15% of ZIP population), then one mid-size market from the largest-cities chart. A two-ZIP compare inside vs outside Saint Louis usually beats reading the state average alone. Other large markets include Kansas City, Springfield, Columbia.
Take this with you
What to do with Missouri's numbers, next.
- See how Missouri compares to a neighboring state on the same Census fields Compare states
- Check where Missouri's ZIP codes rank nationally on income, education, or homeownership View national rankings
- Save a ZIP code to your shortlist to track alongside others you're considering View your shortlist
Figures describe 2019–2023 ACS 5-Year Estimates aggregated from ZIP Code Tabulation Areas (ZCTAs), Census Bureau approximations of USPS ZIP codes, not any single address.
Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2019–2023); USPS ZIP Code Tabulation Areas via the HUD USPS Crosswalk.
Read our methodology to see how this data is sourced, computed, and verified.