Zip Code 52302 — Marion, IA
52302 is a ZIP Code associated with Marion, IA, located within Linn. The postal region supports an estimated population of 42,706 residents across Data Pending housing units, with a population density of 221.8 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.065600, -91.570910)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 52302 |
| Primary City | Marion |
| State / Province | IA |
| County | Linn |
| Total Population | 42,706 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 221.8 people/sq mi |
| Timezone | America/Chicago |
How 52302 Compares
| Metric | ZIP 52302 | Linn County | IA State Average |
|---|
| Population | 42,706 | 228,503 | 3,210,984 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 221.8 /sq mi | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →