County demographics · Iowa
Polk County, Iowa demographics
Polk County, Iowa (county FIPS 19153) has a median household income of $83,576 (±$1,283) and a total population of 503,175 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 42 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 503,175 | none (controlled estimate) | B01003 |
| Median age | 36.2 years | ±0.2 years | B01002 |
| Households | 205,358 | ±1,156 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $83,576 | ±$1,283 | B19013 |
| Median value of owner-occupied housing units | $262,100 | ±$3,486 | B25077 |
| Median gross rent | $1,149 | ±$16 | B25064 |
| Owner-occupied share of occupied housing units | 67.4% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 32.7% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 92.5% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 40.3% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 10.3% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.4% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 19153 |
| Land area | 572.72 sq mi |
| Water area | 19.17 sq mi |
| Population density | 879 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 50161 | 7.7% | 55.8% | Yes |
| 50035 | 7.6% | 100% | Yes |
| 50237 | 6.6% | 78.3% | Yes |
| 50226 | 6.3% | 99.4% | Yes |
| 50009 | 4.9% | 100% | Yes |
| 50073 | 4.6% | 100% | Yes |
| 50169 | 4.5% | 56% | Yes |
| 50021 | 4.2% | 100% | Yes |
| 50131 | 4.1% | 100% | Yes |
| 50317 | 3.9% | 100% | Yes |
| 50023 | 3.7% | 100% | Yes |
| 50265 | 3.3% | 96.8% | Yes |
| 50313 | 3.2% | 100% | Yes |
| 50111 | 2.9% | 66.1% | Yes |
| 50047 | 2.9% | 24.4% | |
| 50327 | 2.8% | 100% | Yes |
| 50244 | 2.6% | 59.9% | Yes |
| 50156 | 2.5% | 16% | |
| 50320 | 2.3% | 77.9% | Yes |
| 50046 | 2.3% | 27.2% | |
| 50321 | 2% | 100% | Yes |
| 50322 | 1.9% | 100% | Yes |
| 50315 | 1.8% | 100% | Yes |
| 50109 | 1.8% | 53.1% | Yes |
| 50310 | 1.4% | 100% | Yes |
| 50312 | 1% | 100% | Yes |
| 50266 | 1% | 25.2% | |
| 50007 | 0.9% | 100% | Yes |
| 50124 | 0.9% | 26% | |
| 50325 | 0.8% | 60.3% | Yes |
| 50323 | 0.7% | 39.5% | |
| 50316 | 0.6% | 100% | Yes |
| 50309 | 0.5% | 100% | Yes |
| 50311 | 0.4% | 100% | Yes |
| 50314 | 0.4% | 100% | Yes |
| 50061 | 0.4% | 6.8% | |
| 50168 | 0.3% | 4.3% | |
| 50324 | 0.2% | 100% | Yes |
| 50228 | 0.1% | 0.9% | |
| 50032 | 0.1% | 100% | Yes |
| 50243 | 0.1% | 36.8% | Yes |
| 50319 | 0% | 100% | Yes |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:153&in=state:19
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/19153" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"19153"}