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

Missouri holds the 7th-most ZIP codes in the country, with an average ZIP household income 7% below the national ZIP median — 41st of 52 states & territories.

#7
of 52 by ZIP count
#41
of 52 by avg income
5,989,092
people across all ZIPs
114
counties covered

Ranks compare this state against all reporting states using ZIP-level Census ACS 5-Year aggregates.

Missouri (MO) contains 1,022 ZIP codes spread across 114 counties and 889 distinct cities. Together those ZIP areas cover a total population of 5,989,092 based on Census ACS 5-Year Estimates. ZIP-level granularity matters here: Missouri stretches across very different economic zones, and a single state-wide average hides the 10x spread you will see between its highest-income and lowest-income ZIP codes in the table below.

The economic baseline across Missouri ZIPs shows an average median household income of $66,851 and an average home value of $191,126, with a state-wide average median age of 43.1. These averages are computed over every ZIP in MO with reported data, not weighted by population, so small rural ZIPs count the same as metropolitan ones. Use them as a reference line, then drill into the ZIP tables to see where affluent suburbs, rural counties, and urban cores deviate from the state mean.

The largest urban concentrations in Missouri by population are Saint Louis, Kansas City, Springfield, Columbia, Saint Charles, and each city aggregates multiple ZIP codes worth of Census data on its own city page. Every record in this view comes from publicly available federal datasets, primarily the U.S. Census Bureau American Community Survey and USPS ZIP Code Tabulation Area files, with no proprietary scoring, estimation, or editorial adjustment. Click any county to drill down to its ZIP-level detail, or jump directly to a ZIP code to see household income, housing cost, demographic breakdown, nearby ZIPs, and FHFA home-price history for that specific five-digit area.

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.

residents

What this shows Population concentrates heavily in the state's largest metros, while most of its 889 cities are far smaller, a pattern the ZIP-level tables below make concrete.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

Counties in Missouri

Largest counties in Missouri by population

Top 15 of 114 counties — each links to its full ZIP-level breakdown

  1. 1
    St. Louis 1,028,344 residents
    44 ZIP codes
  2. 2
    Jackson 678,174 residents
    56 ZIP codes
  3. 3
    St. Charles 362,252 residents
    13 ZIP codes
  4. 4
    St. Louis 309,233 residents
    19 ZIP codes
  5. 5
    Greene 273,929 residents
    15 ZIP codes
  6. 6
    Clay 227,987 residents
    18 ZIP codes
  7. 7
    Jefferson 193,883 residents
    16 ZIP codes
  8. 8
    Boone 164,741 residents
    11 ZIP codes
  9. 9
    Jasper 134,569 residents
    16 ZIP codes
  10. 10
    Cass 97,619 residents
    13 ZIP codes
  11. 11
    Franklin 96,762 residents
    19 ZIP codes
  12. 12
    Buchanan 92,699 residents
    11 ZIP codes
  13. 13
    Platte 88,105 residents
    13 ZIP codes
  14. 14
    Christian 78,198 residents
    12 ZIP codes
  15. 15
    Cole 76,930 residents
    7 ZIP codes

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Which cities have the most ZIPs in Missouri?

Side-by-side: Compare 63376 vs 63021 →

ZIP Codes in Missouri

Most populous ZIP codes in Missouri

The 12 largest by population — all 1,022 MO ZIPs are listed below and on the state sitemap

  1. 1
    63376 · Saint Peters 70,828 residents
    658/sq mi
  2. 2
    63021 · Ballwin 56,261 residents
    986/sq mi
  3. 3
    65807 · Springfield 54,952 residents
    978/sq mi
  4. 4
    65203 · Columbia 53,307 residents
    266/sq mi
  5. 5
    63129 · Saint Louis 52,718 residents
    976/sq mi
  6. 6
    63123 · Saint Louis 49,308 residents
    1,518/sq mi
  7. 7
    63136 · Saint Louis 48,560 residents
    1,772/sq mi
  8. 8
    63301 · Saint Charles 48,514 residents
    212/sq mi
  9. 9
    63031 · Florissant 48,212 residents
    1,263/sq mi
  10. 10
    65202 · Columbia 46,547 residents
    121/sq mi
  11. 11
    63366 · O Fallon 46,175 residents
    259/sq mi
  12. 12
    63303 · Saint Charles 45,834 residents
    893/sq mi

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Frequently Asked Questions

How many ZIP codes are in Missouri?
Missouri has 1,022 ZIP codes across 114 counties, with a total population of 5,989,092.
What is the average income in Missouri?
The average median household income across Missouri ZIP codes is $66,851. The average home value is $191,126.
What are the largest cities in Missouri?
The largest cities in Missouri by population include Saint Louis (927,396), Kansas City (545,132), Springfield (219,752), Columbia (139,474), Saint Charles (134,684).

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023); USPS ZIP Code Tabulation Areas via the HUD USPS Crosswalk.