Howard County, Iowa ZIP codes
6 ZIP codes are in Howard County, plus 3 that cross in from neighboring counties.
- ZIP codes
- 6
- Population in these ZIPs
- 10,901
- Avg. median income
- $66,700population-weighted
- Cities & towns
- 6
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ZIP codes in Howard County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 50466 | Riceville | 1,972 | $56,728 | $235,500 |
| 50628 | Elma | 1,423 | $68,750 | $220,900 |
| 52134 | Chester | 223 | $63,125 | $167,400 |
| 52136 | Cresco | 5,840 | $70,778 | $210,600 |
| 52155 | Lime Springs | 1,110 | $57,917 | $240,500 |
| 52163 | Protivin | 333 | $78,194 | $126,200 |
ZIP codes partly in Howard County
These ZIP codes are mostly in a neighboring county but cover part of Howard County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 50603 | Alta Vista | Chickasaw County | 555 | $74,271 | $201,700 |
| 52132 | Calmar | Winneshiek County | 1,759 | $100,559 | $270,200 |
| 52154 | Lawler | Chickasaw County | 592 | $58,393 | $262,200 |
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 and towns in Howard County
Nearby counties
Frequently asked questions
How many ZIP codes are in Howard County, Iowa?
6 ZIP codes are mainly in Howard County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Howard County?
ZIP codes in Howard County use the city names Chester, Cresco, Elma, Lime Springs, Protivin and Riceville.