Census place · GEOID 1968025 · Cerro Gordo County
Rock Falls, IA ZIP codes
2 ZIP/ZCTAs intersecting this Census place in Cerro Gordo County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Rock Falls (GEOID 1968025). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 28,894 (2 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
ZIP/ZCTA overlap with Rock Falls
Population overlap
Share of each ZIP/ZCTA’s population located within Rock Falls, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Rock Falls
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 50401 | Mason City | Cerro Gordo County | 28,818 | $63,807 |
| 50467 | Rock Falls | Cerro Gordo County | 76 | $65,625 |