ZIP code · Garrison · North Dakota · United States
ZIP code 58540 — Garrison
ZIP code 58540 serves Garrison, North Dakota.
- Postal code
- 58540Single source Value from one source, not cross-checked.
- City
- Garrison
- County
- McLean FIPS 38055
- State
- North Dakota
- Country
- United States
- Coordinates
- 47.6675, -101.6142 — precision precise (locality)
View on OpenStreetMap - Population
- 2,986 (ZCTA, ACS 5-year)
- Population density
- 8 / sq mi
- Land area
- 361.4 sq mi (936 km²) (ZCTA, ACS 5-year)
- Median household income
- $75,625
- Per-capita income
- $39,739
- Median age
- 50
- Households
- 1,204
- Housing units
- 1,515
- Median home value
- $257,800
- Median gross rent
- $669 / month
- Congressional district
- ND At-large (119th Congress)
- USDA hardiness zone
- 4a (-30 to -25 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 701Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 58540 with another ZIP · ZIPs within 25 miles · distance from 58540
Map of ZIP code 58540
Climate — monthly normals
Warmest month Aug (avg high 81°F), coldest Jan (avg low 2°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 21 | 25 | 37 | 53 | 66 | 74 | 81 | 81 | 71 | 54 | 38 | 25 |
| Avg low °F | 2 | 5 | 17 | 29 | 41 | 51 | 56 | 54 | 45 | 32 | 19 | 7 |
| Precip in | 0.6 | 0.5 | 0.7 | 1.3 | 2.6 | 3.5 | 2.6 | 1.8 | 1.7 | 1.2 | 0.6 | 0.7 |
NOAA 1991–2020 climate normals from the nearest station: GARRISON (8.3 mi) · NOAA NCEI
Places in ZIP 58540
- 3 schools
- 1 hospitals & clinics
- 3 restaurants & cafés
- 13 parks
- 21 playgrounds
- 1 libraries
- 3 places of worship
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page