McLean County, ND ZIP codes
There are 13 ZIP codes in McLean County, ND, in 13 towns, from 58531 to 58779. The largest are 58540 (Garrison), 58577 (Washburn) and 58575 (Turtle Lake).
The county seat is Washburn.
- ZIP codes
- 13
- Towns
- 13
- County seat
- Washburn
- County FIPS
38055- State
- North Dakota
- Population
- 9,823
- Median household income
- $83,583
- Land area
- 2,110 sq mi
McLean County ZIP codes by town
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.
Map of McLean County ZIP codes
The ZIP codes of McLean 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.
McLean County in numbers
About 9,823 people live in McLean County, in 4,377 households, the 15th most populous of North Dakota's 53 counties. The median household income is $83,583 a year, 9% above the North Dakota median of $76,657 (US: $80,734). The median owner-occupied home is valued at $227,100 (9% below the North Dakota median), and median gross rent is $784 a month. The median age is 47.7; 26.1% of adults 25 and over hold a bachelor's degree or higher (32.7% across North Dakota); the average commute takes 24 minutes.
| Population | 9,823 |
|---|---|
| Households | 4,377 |
| Median age | 47.7 |
| Median household income | $83,583 |
| Median home value | $227,100 |
| Median gross rent | $784 |
| Bachelor's degree or higher | 26.1% |
| Mean commute | 24.4 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 McLean County
| Town | ZIP codes | Population |
|---|---|---|
| Washburn | 1 | 1,507 |
| Garrison | 1 | 1,397 |
| Underwood | 1 | 699 |
| Turtle Lake | 1 | 500 |
| Max | 1 | 358 |
| Benedict | 1 | 227 |
| Roseglen | 1 | 218 |
| Riverdale | 1 | 187 |
| Ryder | 1 | 100 |
| Butte | 1 | 68 |
| Coleharbor | 1 | 66 |
| Mercer | 1 | 66 |
| Ruso | 1 | 4 |
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 McLean County.
Not sure you are in McLean County? What county am I in? answers from your location, near a county line included.
Every ZIP code in McLean County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
58531 | Coleharbor , ND | Standard | 303 | $81,071 | $318,900 |
58540 | Garrison , ND | Standard | 2,634 | $76,319 | $228,000 |
58559 | Mercer , ND | Standard | 411 | $80,000 | $296,700 |
58565 | Riverdale , ND | Standard | 187 | $73,333 | $222,700 |
58575 | Turtle Lake , ND | Standard | 910 | $83,214 | $170,400 |
58576 | Underwood , ND | Standard | 1,063 | $102,614 | $196,700 |
58577 | Washburn , ND | Standard | 1,954 | $74,471 | $260,100 |
58716 | Benedict , ND | Standard | 308 | $61,959 | $283,300 |
58723 | Butte , ND | Standard | 244 | $59,615 | $119,000 |
58759 | Max , ND | Standard | 756 | $87,321 | $152,800 |
58775 | Roseglen , ND | Standard | 218 | $49,844 | — |
58778 | Ruso , ND | Standard | 187 | $148,777 | $372,700 |
58779 | Ryder , ND | Standard | 343 | $62,917 | $66,900 |
Cite this page
zipcodes.pro. “McLean County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nd/county/mclean
Underlying data is public domain or openly licensed — sources, vintages and licences.