ZIP code · Sumner · Iowa · United States

ZIP code 50674 — Sumner

ZIP code 50674 serves Sumner, Iowa.

Postal code
50674
Single source Value from one source, not cross-checked.
City
Sumner
County
Bremer FIPS 19017
State
Iowa
Country
United States
Coordinates
42.8419, -92.1186 — precision precise (locality)
View on OpenStreetMap
Population
3,596 (ZCTA, ACS 5-year)
Population density
23 / sq mi
Land area
158.9 sq mi (411.6 km²) (ZCTA, ACS 5-year)
Median household income
$63,429
Per-capita income
$37,130
Median age
46.9
Households
1,552
Housing units
1,669
Median home value
$156,300
Median gross rent
$839 / month
Congressional district
IA-2 (119th Congress)
USDA hardiness zone
5a (-20 to -15 °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
563
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 83°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F252943587080838175614431
Avg low °F71224364859625950382615
Precip in1.21.12.03.95.16.04.84.33.83.02.01.5

NOAA 1991–2020 climate normals from the nearest station: TRIPOLI (7.3 mi) · NOAA NCEI

Places in ZIP 50674

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