ZIP code · Knierim · Iowa · United States

ZIP code 50552 — Knierim

ZIP code 50552 serves Knierim, Iowa.

Postal code
50552
Single source Value from one source, not cross-checked.
City
Knierim
County
Calhoun FIPS 19025
State
Iowa
Country
United States
Coordinates
42.4555, -94.4569 — precision precise (locality)
View on OpenStreetMap
Population
83 (ZCTA, ACS 5-year)
Population density
165 / sq mi
Land area
0.5 sq mi (1.3 km²) (ZCTA, ACS 5-year)
Median household income
$85,313
Per-capita income
$38,454
Median age
49.5
Households
31
Housing units
40
Congressional district
IA-4 (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
515
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 8°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F273145597080838175624632
Avg low °F81224364960636151382515
Precip in0.81.02.03.85.05.03.54.53.02.41.51.3

NOAA 1991–2020 climate normals from the nearest station: ROCKWELL CITY (9.7 mi) · NOAA NCEI

Places in ZIP 50552

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