Rock Rapids, IA ZIP code
The ZIP code for Rock Rapids, Iowa is 51246. It is in Lyon County.
- Population in these ZIPs
- 4,041
- Avg. median income
- $72,400population-weighted
- Typical home value
- $254,900population-weighted
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Rock Rapids, IA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 51246 | 4,041 | $72,400 | $254,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Rock Rapids
Frequently asked questions
What is the ZIP code for Rock Rapids, IA?
The ZIP code for Rock Rapids, IA is 51246.
What county is Rock Rapids, Iowa in?
Rock Rapids ZIP codes are in Lyon County.