State profile · IA

Iowa ZIP Codes

Demographics, income, and housing across every ZIP code in Iowa, benchmarked against all 50 states, DC and Puerto Rico.

934
ZIP codes
3,046,945
Population
$76,594
Avg ZIP income
100
Counties

The verdict

Iowa holds the 10th-most ZIP codes in the country, with an average ZIP household income 6% above the national ZIP median — 27th of 52 states & territories.

#10
of 52 by ZIP count
#27
of 52 by avg income
3,046,945
people across all ZIPs
100
counties covered

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

Iowa (IA) contains 934 ZIP codes spread across 100 counties and 890 distinct cities. Together those ZIP areas cover a total population of 3,046,945 based on Census ACS 5-Year Estimates. ZIP-level granularity matters here: Iowa 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 Iowa ZIPs shows an average median household income of $76,594 and an average home value of $175,588, with a state-wide average median age of 43.6. These averages are computed over every ZIP in IA 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 Iowa by population are Des Moines, Cedar Rapids, Davenport, Sioux City, Iowa City, 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 Iowa

Top 10 cities by population in Iowa

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 890 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 Iowa

Largest counties in Iowa by population

Top 15 of 100 counties — each links to its full ZIP-level breakdown

  1. 1
    Polk 445,346 residents
    31 ZIP codes
  2. 2
    Linn 211,123 residents
    21 ZIP codes
  3. 3
    Scott 165,391 residents
    19 ZIP codes
  4. 4
    Black Hawk 130,334 residents
    10 ZIP codes
  5. 5
    Johnson 127,888 residents
    12 ZIP codes
  6. 6
    Woodbury 104,017 residents
    22 ZIP codes
  7. 7
    Dubuque 95,771 residents
    14 ZIP codes
  8. 8
    Pottawattamie 92,707 residents
    16 ZIP codes
  9. 9
    Story 91,863 residents
    18 ZIP codes
  10. 10
    Dallas 56,466 residents
    15 ZIP codes
  11. 11
    Clinton 48,631 residents
    14 ZIP codes
  12. 12
    Warren 45,673 residents
    11 ZIP codes
  13. 13
    Muscatine 44,223 residents
    9 ZIP codes
  14. 14
    Cerro Gordo 44,064 residents
    10 ZIP codes
  15. 15
    Des Moines 39,950 residents
    7 ZIP codes

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

Which cities have the most ZIPs in Iowa?

Side-by-side: Compare 52001 vs 50613 →

ZIP Codes in Iowa

Most populous ZIP codes in Iowa

The 12 largest by population — all 934 IA ZIPs are listed below and on the state sitemap

  1. 1
    52001 · Dubuque 43,173 residents
    637/sq mi
  2. 2
    50613 · Cedar Falls 42,031 residents
    129/sq mi
  3. 3
    52402 · Cedar Rapids 40,149 residents
    1,125/sq mi
  4. 4
    52404 · Cedar Rapids 37,796 residents
    266/sq mi
  5. 5
    52302 · Marion 36,980 residents
    192/sq mi
  6. 6
    51503 · Council Bluffs 36,376 residents
    118/sq mi
  7. 7
    50317 · Des Moines 36,207 residents
    627/sq mi
  8. 8
    50315 · Des Moines 35,853 residents
    1,382/sq mi
  9. 9
    51501 · Council Bluffs 35,406 residents
    566/sq mi
  10. 10
    52722 · Bettendorf 34,754 residents
    506/sq mi
  11. 11
    52240 · Iowa City 32,230 residents
    78/sq mi
  12. 12
    50265 · West Des Moines 31,653 residents
    709/sq mi

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

Frequently Asked Questions

How many ZIP codes are in Iowa?
Iowa has 934 ZIP codes across 100 counties, with a total population of 3,046,945.
What is the average income in Iowa?
The average median household income across Iowa ZIP codes is $76,594. The average home value is $175,588.
What are the largest cities in Iowa?
The largest cities in Iowa by population include Des Moines (212,318), Cedar Rapids (134,152), Davenport (102,516), Sioux City (85,884), Iowa City (77,509).

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