ZIP code · Killdeer · North Dakota · United States
ZIP code 58640 — Killdeer
ZIP code 58640 serves Killdeer, North Dakota.
- Postal code
- 58640Single source Value from one source, not cross-checked.
- City
- Killdeer
- County
- Dunn FIPS 38025
- State
- North Dakota
- Country
- United States
- Coordinates
- 47.4109, -102.7762 — precision precise (locality)
View on OpenStreetMap - Population
- 1,324 (ZCTA, ACS 5-year)
- Population density
- 3 / sq mi
- Land area
- 437.4 sq mi (1,133 km²) (ZCTA, ACS 5-year)
- Median household income
- $99,071
- Per-capita income
- $50,964
- Median age
- 40.4
- Households
- 480
- Housing units
- 669
- Median home value
- $286,300
- Median gross rent
- $950 / 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/Denver (UTC−7 / UTC−6 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 58640 with another ZIP · ZIPs within 25 miles · distance from 58640
Map of ZIP code 58640
Climate — monthly normals
Warmest month Aug (avg high 84°F), coldest Jan (avg low 4°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 27 | 30 | 42 | 56 | 67 | 76 | 83 | 84 | 73 | 56 | 41 | 30 |
| Avg low °F | 4 | 7 | 18 | 28 | 39 | 49 | 54 | 52 | 43 | 31 | 18 | 8 |
| Precip in | 0.5 | 0.4 | 0.7 | 1.3 | 2.8 | 3.4 | 2.9 | 1.9 | 1.9 | 1.3 | 0.7 | 0.5 |
NOAA 1991–2020 climate normals from the nearest station: KILLDEER (2.8 mi) · NOAA NCEI
Places in ZIP 58640
- 2 schools
- 1 hospitals & clinics
- 2 bars & pubs
- 8 parks
- 8 playgrounds
- 1 libraries
- 1 post offices
- 2 places of worship
- 1 gas stations
- 1 police & fire stations
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