Polk

Source:

Iowa

Polk is a major-metro county in Iowa with 31 ZIP codes, 445,346 people, and upper-quartile household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

National county placement

According to ACS 5-Year Estimates, Polk, IA sits among US counties with an upper-quartile household income, on a major-metro county population base, across a multi-ZIP patchwork.

Top 11%
household income vs 3,210 US counties
445,346
combined ZIP population
31
USPS ZIP codes covered
$91,616
avg ZIP median income

Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.

Polk lands in the national county income distribution as upper-quartile household income on major-metro county footing (FIPS 19153, 31 ZIPs, combined population 445,346). Sort the ZIP table by population before treating the county mean as uniform.

High-income counties with wide ZIP mosaics hide sharp internal gradients. The densest ZIP here is 50317 (Des Moines) with 36,207 residents - open it beside a thin rural code from the table before treating the county mean as uniform. HUD Fair Market Rents and FBI county tables attach to FIPS 19153, so scorecards stay county-keyed while household income stays ZIP-keyed.

Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.

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31

Total ZIPs

445,346

Total Population

ZIP Codes in Polk

Side-by-side: Compare 50317 vs 50315 →

ZIP Code City Population Density
50317 Des Moines 36,207 627
50315 Des Moines 35,853 1,382
50265 West Des Moines 31,653 709
50322 Urbandale 31,530 1,131
50310 Des Moines 30,221 1,451
50023 Ankeny 27,986 488
50266 West Des Moines 23,625 551
50021 Ankeny 21,595 324
50320 Des Moines 20,027 414
50131 Johnston 17,499 314
50313 Des Moines 17,376 379
50316 Des Moines 16,440 1,785
50009 Altoona 16,136 248
50325 Clive 15,448 775
50312 Des Moines 15,339 1,044
50311 Des Moines 15,113 2,323
50314 Des Moines 12,465 1,939
50327 Pleasant Hill 10,467 217
50111 Grimes 9,407 132
50321 Des Moines 7,846 258
50309 Des Moines 5,431 744
50035 Bondurant 5,387 46
50324 Windsor Heights 4,903 1,310
50226 Polk City 4,724 49
50156 Madrid 4,412 19
50237 Runnells 3,095 22
50169 Mitchellville 3,093 30
50073 Elkhart 1,195 18
50007 Alleman 474 34
50032 Berwick 399 418
50319 Des Moines 0 -

Frequently Asked Questions

What is the population of Polk?

Polk has a total population of 445,346 across 31 ZIP codes, based on U.S. Census Bureau ACS 2023 data.

What ZIP codes are in Polk?

Polk includes 31 ZIP codes: 50317, 50315, 50265, 50322, 50310, 50023, 50266, 50021, 50320, 50131, and more.

Polk's figures come from Census ACS 5-Year Estimates (2023), mapped to ZIP codes via the HUD USPS Crosswalk. PlainZIP is not affiliated with the U.S. Census Bureau or any government agency. See our methodology for details.

Related

Compare any two ZIPs side by side

Read our methodology : how this data is sourced, computed, and verified.