Zip Code 52072 — Saint Olaf, IA
52072 is a ZIP Code associated with Saint Olaf, IA, located within Clayton. 52072 ranks #10 out of 15 ZIP codes in Clayton County by population (and #696 out of 970 in IA). The area supports an estimated population of 454 residents across Data Pending housing units, with a population density of 5.3 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.920220, -91.380250)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 52072 |
| Primary City | Saint Olaf |
| State / Province | IA |
| County | Clayton |
| Total Population | 454 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 5.3 people/sq mi |
| Timezone | America/Chicago |
How 52072 Compares
| Metric | ZIP 52072 | Clayton County | IA State Average |
|---|
| Population | 454 | 16,181 (Total) | 3,210,984 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 5.3 /sq mi | -- | -- |
| County Pop Rank | #10 of 15 | -- | -- |
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 →