McKenzie County, ND ZIP codes
McKenzie County, ND has 6 ZIP codes, in 6 towns: 58854, 58831, 58835, 58634, 58847 and 58838. 2 more cross into it from neighbouring counties: 59270 and 58763.
The county seat is Watford City.
- ZIP codes
- 6
- Partly in it
- 2 more
- Towns
- 6
- County seat
- Watford City
- County FIPS
38053- State
- North Dakota
- Population
- 14,321
- Median household income
- $93,404
- Land area
- 2,760 sq mi
McKenzie County ZIP codes by town
- Watford City (county seat)
- 58854
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in McKenzie County
These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of McKenzie County.
- 58763 New Town · mostly in Mountrail County
- 59270 Sidney · mostly in Richland County
Map of McKenzie County ZIP codes
The ZIP codes of McKenzie County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
McKenzie County in numbers
About 14,321 people live in McKenzie County, in 5,997 households, the 10th most populous of North Dakota's 53 counties. The median household income is $93,404 a year, 22% above the North Dakota median of $76,657 (US: $80,734). The median owner-occupied home is valued at $349,600 (40% above the North Dakota median), and median gross rent is $1,284 a month. The median age is 31.5; 19.1% of adults 25 and over hold a bachelor's degree or higher (32.7% across North Dakota); the average commute takes 23 minutes.
| Population | 14,321 |
|---|---|
| Households | 5,997 |
| Median age | 31.5 |
| Median household income | $93,404 |
| Median home value | $349,600 |
| Median gross rent | $1,284 |
| Bachelor's degree or higher | 19.1% |
| Mean commute | 22.9 min |
| Population density | 5 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in McKenzie County
| Town | ZIP codes | Population |
|---|---|---|
| Watford City | 1 | 6,039 |
| Grassy Butte | 1 | 402 |
| Alexander | 1 | 255 |
| Cartwright | 1 | 252 |
| Keene | 1 | 209 |
| Arnegard | 1 | 201 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with McKenzie County.
- Richland County, MT (5)
- Mountrail County (7)
- Dunn County (7)
- Golden Valley County (3)
- Wibaux County, MT (1)
- Billings County (3)
Not sure you are in McKenzie County? What county am I in? answers from your location, near a county line included.
Every ZIP code in McKenzie County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
58634 | Grassy Butte , ND | Standard | 402 | $157,750 | — |
58831 | Alexander , ND | Standard | 1,089 | $98,380 | $342,100 |
58835 | Arnegard , ND | Standard | 839 | $137,500 | $375,000 |
58838 | Cartwright , ND | Standard | 252 | $59,392 | $173,400 |
58847 | Keene , ND | Standard | 209 | $84,950 | $102,800 |
58854 | Watford City , ND | Standard | 9,368 | $99,000 | $388,700 |
Cite this page
zipcodes.pro. “McKenzie County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nd/county/mckenzie
Underlying data is public domain or openly licensed — sources, vintages and licences.