ZIP code · Portland · North Dakota · United States

ZIP code 58274 — Portland

ZIP code 58274 serves Portland, North Dakota.

Postal code
58274
Single source Value from one source, not cross-checked.
City
Portland
County
Traill FIPS 38097
State
North Dakota
Country
United States
Coordinates
47.5015, -97.3843 — precision precise (locality)
View on OpenStreetMap
Population
895 (ZCTA, ACS 5-year)
Population density
7 / sq mi
Land area
131.3 sq mi (340 km²) (ZCTA, ACS 5-year)
Median household income
$102,143
Per-capita income
$51,632
Median age
50
Households
388
Housing units
396
Median home value
$195,300
Median gross rent
$506 / 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
701 (from the nearest rate centre)
Telephone 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.

Climate — monthly normals

Warmest month Jul (avg high 80°F), coldest Jan (avg low -4°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F162133516776807970543622
Avg low °F-4-11328415357544432175
Precip in0.50.51.01.53.34.13.92.72.72.10.80.8

NOAA 1991–2020 climate normals from the nearest station: MAYVILLE (1.6 mi) · NOAA NCEI

Places in ZIP 58274

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