PlainZIP

National rankings · ACS 5-Year

U.S. ZIP Code Rankings by State

Every state ranked by total ZIP-area population and by ZIP-code count, computed live from ZIP-level Census data, no hand-curated lists.

33,099
ZIP codes ranked
52
States + territories
Texas
Most ZIPs (1,935)

Download the state-level summary (CSV) , open extract wired into this page's Dataset JSON-LD.

The verdict

ZIP coverage tracks delivery geography, not population: Texas leads with 1,935 ZIP codes, and just three states hold roughly 17% of every ZIP in the country, while California tops the population ranking. Arkansas is the #25 cutoff to make this top-25 ZIP-count list at 591 ZIPs; Louisiana is the #25 cutoff on the population board.

Texas
most ZIPs (1,935)
California
most people (37,249,464)
17%
of all ZIPs in the top 3 states
591
#25 ZIP-count cutoff

Coverage follows USPS delivery routes, one ZCTA per delivery cluster, so geographically broad states lead by count even where populations don't.

According to the U.S. Census Bureau American Community Survey (2019–2023 5-Year Estimates), the United States spans 33,099 ZIP Code Tabulation Areas across 52 states and territories, home to roughly 312,447,629 residents. PlainZIP aggregates every ZIP-level record into the state rankings below, every row reflects the current dataset query, not a hand-curated list. See our methodology for how ZIP-level Census data is rolled up into state totals. Data refreshed August 2026.

Top 25 states by total ZIP-area population

Most populous states by total ZIP-area population

Sum of ZIP-level population for every reporting ZIP in the state

  1. 1
    California 37,249,464 residents
    1,761 ZIP codes
  2. 2
    Texas 25,144,800 residents
    1,935 ZIP codes
  3. 3
    New York 19,378,077 residents
    1,794 ZIP codes
  4. 4
    Florida 18,801,226 residents
    983 ZIP codes
  5. 5
    Illinois 12,830,581 residents
    1,383 ZIP codes
  6. 6
    Pennsylvania 12,702,102 residents
    1,795 ZIP codes
  7. 7
    Ohio 11,535,123 residents
    1,195 ZIP codes
  8. 8
    Michigan 9,883,612 residents
    986 ZIP codes
  9. 9
    Georgia 9,687,711 residents
    735 ZIP codes
  10. 10
    North Carolina 9,535,477 residents
    808 ZIP codes
  11. 11
    New Jersey 8,791,894 residents
    595 ZIP codes
  12. 12
    Virginia 8,001,239 residents
    896 ZIP codes
  13. 13
    Washington 6,712,346 residents
    596 ZIP codes
  14. 14
    Massachusetts 6,547,612 residents
    537 ZIP codes
  15. 15
    Indiana 6,483,792 residents
    775 ZIP codes
  16. 16
    Arizona 6,394,519 residents
    405 ZIP codes
  17. 17
    Tennessee 6,339,942 residents
    628 ZIP codes
  18. 18
    Missouri 5,989,092 residents
    1,022 ZIP codes
  19. 19
    Maryland 5,773,561 residents
    468 ZIP codes
  20. 20
    Wisconsin 5,686,814 residents
    772 ZIP codes
  21. 21
    Minnesota 5,304,096 residents
    884 ZIP codes
  22. 22
    Colorado 5,029,374 residents
    525 ZIP codes
  23. 23
    Alabama 4,779,588 residents
    642 ZIP codes
  24. 24
    South Carolina 4,625,364 residents
    424 ZIP codes
  25. 25
    Louisiana 4,532,830 residents
    515 ZIP codes

Source U.S. Census Bureau ACS 5-Year Estimates · 2019–2023 claims window

Top 25 states by ZIP-code count

States with the most ZIP codes

Count of ZIP Code Tabulation Areas the Census Bureau publishes for the state

  1. 1
    Texas 1,935 ZIP codes
    25,144,800 people
  2. 2
    Pennsylvania 1,795 ZIP codes
    12,702,102 people
  3. 3
    New York 1,794 ZIP codes
    19,378,077 people
  4. 4
    California 1,761 ZIP codes
    37,249,464 people
  5. 5
    Illinois 1,383 ZIP codes
    12,830,581 people
  6. 6
    Ohio 1,195 ZIP codes
    11,535,123 people
  7. 7
    Missouri 1,022 ZIP codes
    5,989,092 people
  8. 8
    Michigan 986 ZIP codes
    9,883,612 people
  9. 9
    Florida 983 ZIP codes
    18,801,226 people
  10. 10
    Iowa 934 ZIP codes
    3,046,945 people
  11. 11
    Virginia 896 ZIP codes
    8,001,239 people
  12. 12
    Minnesota 884 ZIP codes
    5,304,096 people
  13. 13
    North Carolina 808 ZIP codes
    9,535,477 people
  14. 14
    Indiana 775 ZIP codes
    6,483,792 people
  15. 15
    Wisconsin 772 ZIP codes
    5,686,814 people
  16. 16
    Kentucky 767 ZIP codes
    4,345,124 people
  17. 17
    Georgia 735 ZIP codes
    9,687,711 people
  18. 18
    West Virginia 706 ZIP codes
    1,852,774 people
  19. 19
    Kansas 697 ZIP codes
    2,852,940 people
  20. 20
    Oklahoma 648 ZIP codes
    3,751,609 people
  21. 21
    Alabama 642 ZIP codes
    4,779,588 people
  22. 22
    Tennessee 628 ZIP codes
    6,339,942 people
  23. 23
    Washington 596 ZIP codes
    6,712,346 people
  24. 24
    New Jersey 595 ZIP codes
    8,791,894 people
  25. 25
    Arkansas 591 ZIP codes
    2,916,042 people

Source U.S. Census Bureau ACS 5-Year Estimates · HUD-USPS ZIP crosswalk · 2019–2023 claims window

Does a bigger population mean a richer state?

Across all 52 tracked states: total ZIP-area population (x) against average household income (y). The correlation is weak (r ≈ +0.13), so a state with far more people is not meaningfully more likely to have a higher average income than a smaller one.

State population vs. average income

Each dot is one tracked state's total ZIP-area population and average household income.

Large & high-incomeSmaller but high-incomeLarge but lower-incomeSmaller & lower-income09770936.319541872.629312808.939083745.3$21300.2$47671.8$74043.5$100415.2$126786.9Total ZIP-area populationAverage household incomeAlabama, Total ZIP-area population: 4779588 · Average household income: $60929Alaska, Total ZIP-area population: 709930 · Average household income: $72512Arizona, Total ZIP-area population: 6394519 · Average household income: $72649Arkansas, Total ZIP-area population: 2916042 · Average household income: $56582California, Total ZIP-area population: 37249464 · Average household income: $101666Colorado, Total ZIP-area population: 5029374 · Average household income: $88682Connecticut, Total ZIP-area population: 3574097 · Average household income: $113078Delaware, Total ZIP-area population: 897925 · Average household income: $89586District of Columbia, Total ZIP-area population: 601370 · Average household income: $119055Florida, Total ZIP-area population: 18801226 · Average household income: $77121Georgia, Total ZIP-area population: 9687711 · Average household income: $70347Hawaii, Total ZIP-area population: 1360301 · Average household income: $92800Idaho, Total ZIP-area population: 1566941 · Average household income: $73128Illinois, Total ZIP-area population: 12830581 · Average household income: $80067Indiana, Total ZIP-area population: 6483792 · Average household income: $73644Iowa, Total ZIP-area population: 3046945 · Average household income: $76594Kansas, Total ZIP-area population: 2852940 · Average household income: $71900Kentucky, Total ZIP-area population: 4345124 · Average household income: $59649Louisiana, Total ZIP-area population: 4532830 · Average household income: $59685Maine, Total ZIP-area population: 1328255 · Average household income: $73507Maryland, Total ZIP-area population: 5773561 · Average household income: $114125Massachusetts, Total ZIP-area population: 6547612 · Average household income: $115681Michigan, Total ZIP-area population: 9883612 · Average household income: $73354Minnesota, Total ZIP-area population: 5304096 · Average household income: $82127Mississippi, Total ZIP-area population: 2967323 · Average household income: $52551Missouri, Total ZIP-area population: 5989092 · Average household income: $66851Montana, Total ZIP-area population: 990003 · Average household income: $70018Nebraska, Total ZIP-area population: 1826766 · Average household income: $76598Nevada, Total ZIP-area population: 2701225 · Average household income: $82880New Hampshire, Total ZIP-area population: 1316573 · Average household income: $102353New Jersey, Total ZIP-area population: 8791894 · Average household income: $121992New Mexico, Total ZIP-area population: 2056349 · Average household income: $59299New York, Total ZIP-area population: 19378077 · Average household income: $92475North Carolina, Total ZIP-area population: 9535477 · Average household income: $69165North Dakota, Total ZIP-area population: 671781 · Average household income: $82667Ohio, Total ZIP-area population: 11535123 · Average household income: $73011Oklahoma, Total ZIP-area population: 3751609 · Average household income: $62593Oregon, Total ZIP-area population: 3831165 · Average household income: $77854Pennsylvania, Total ZIP-area population: 12702102 · Average household income: $77864Rhode Island, Total ZIP-area population: 1052581 · Average household income: $102328South Carolina, Total ZIP-area population: 4625364 · Average household income: $63759South Dakota, Total ZIP-area population: 813464 · Average household income: $76584Tennessee, Total ZIP-area population: 6339942 · Average household income: $66453Texas, Total ZIP-area population: 25144800 · Average household income: $75579Utah, Total ZIP-area population: 2763264 · Average household income: $86636Vermont, Total ZIP-area population: 625741 · Average household income: $82930Virginia, Total ZIP-area population: 8001239 · Average household income: $85582Washington, Total ZIP-area population: 6712346 · Average household income: $90905West Virginia, Total ZIP-area population: 1852774 · Average household income: $57720Wisconsin, Total ZIP-area population: 5686814 · Average household income: $78126Wyoming, Total ZIP-area population: 563839 · Average household income: $84549Puerto Rico, Total ZIP-area population: 3723066 · Average household income: $26095
Source: U.S. Census Bureau, ACS 5-Year Estimates. Crosshairs mark the median across tracked states, not the range midpoint.

Take this with you

Where to go next once you know which states lead on ZIP coverage and population.

Rankings sum every ZIP Code Tabulation Area (ZCTA) currently reporting for a state; a state's rank can shift between ETL refreshes as the Census Bureau revises ACS estimates, not because of any change on the ground.

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023 claims window) and HUD-USPS ZIP crosswalk. Verify with HUD →

This page explains the source records, calculation, and limits behind the figures shown. State totals are summed from every reporting ZIP Code Tabulation Area in the state at query time, not from a stored or hand-curated list. Rankings describe the published Census records only; they do not rate states and say nothing about conditions in any particular ZIP code. The ETL refresh date above is distinct from the ACS claims window stamped on each chart. Read our editorial standards and corrections policy, the methodology behind these numbers, or report a correction. Data current as of the ACS 2019–2023 claims window.