Cavalier County, North Dakota ZIP codes
10 ZIP codes are in Cavalier County, plus 8 that cross in from neighboring counties.
- ZIP codes
- 10
- Population in these ZIPs
- 3,317
- Avg. median income
- $75,500population-weighted
- Cities & towns
- 10
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ZIP codes in Cavalier County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 58239 | Hannah | 58 | $146,125 | — |
| 58249 | Langdon | 2,217 | $64,571 | $180,200 |
| 58255 | Maida | 0 | — | — |
| 58260 | Milton | 256 | $57,813 | $86,900 |
| 58269 | Osnabrock | 139 | — | $34,800 |
| 58281 | Wales | 57 | $128,750 | $79,700 |
| 58311 | Alsen | 60 | $82,386 | $96,700 |
| 58323 | Calvin | 72 | $250,001 | — |
| 58352 | Munich | 436 | $94,000 | $120,500 |
| 58355 | Nekoma | 22 | $104,375 | $112,500 |
ZIP codes partly in Cavalier County
These ZIP codes are mostly in a neighboring county but cover part of Cavalier County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 58220 | Cavalier | Pembina County | 2,268 | $61,199 | $178,300 |
| 58227 | Edinburg | Walsh County | 481 | $78,264 | $115,200 |
| 58229 | Fairdale | Walsh County | 97 | $29,357 | $108,700 |
| 58282 | Walhalla | Pembina County | 1,321 | $52,083 | $107,300 |
| 58330 | Edmore | Ramsey County | 437 | $70,986 | $92,900 |
| 58338 | Hampden | Ramsey County | 106 | $64,531 | $113,900 |
| 58372 | Sarles | Towner County | 122 | $155,391 | $133,600 |
| 58377 | Starkweather | Ramsey County | 177 | $91,667 | $137,500 |
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 Cavalier County
Nearby counties
Frequently asked questions
How many ZIP codes are in Cavalier County, North Dakota?
10 ZIP codes are mainly in Cavalier County, and 8 more ZIP codes from neighboring areas reach partly into it.
What cities are in Cavalier County?
ZIP codes in Cavalier County use the city names Alsen, Calvin, Hannah, Langdon, Maida, Milton, Munich, Nekoma, Osnabrock and Wales.