Fremont County, Iowa ZIP codes
9 ZIP codes are in Fremont County, plus 2 that cross in from neighboring counties.
- ZIP codes
- 9
- Population in these ZIPs
- 6,859
- Avg. median income
- $82,500population-weighted
- Cities & towns
- 9
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ZIP codes in Fremont County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 51639 | Farragut | 919 | $84,688 | $177,000 |
| 51640 | Hamburg | 1,381 | $65,385 | $136,800 |
| 51645 | Imogene | 419 | $217,898 | — |
| 51648 | Percival | 257 | $59,766 | $181,900 |
| 51649 | Randolph | 346 | $58,333 | $201,000 |
| 51650 | Riverton | 197 | $49,063 | $113,700 |
| 51652 | Sidney | 1,569 | $82,200 | $192,600 |
| 51653 | Tabor | 1,446 | $71,319 | $226,500 |
| 51654 | Thurman | 325 | $90,188 | $219,500 |
ZIP codes partly in Fremont County
These ZIP codes are mostly in a neighboring county but cover part of Fremont County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 51601 | Shenandoah | Page County | 5,629 | $62,143 | $133,100 |
| 51647 | Northboro | Page County | 172 | $23,633 | — |
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 Fremont County
Nearby counties
Frequently asked questions
How many ZIP codes are in Fremont County, Iowa?
9 ZIP codes are mainly in Fremont County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Fremont County?
ZIP codes in Fremont County use the city names Farragut, Hamburg, Imogene, Percival, Randolph, Riverton, Sidney, Tabor and Thurman.