ZIP code · Luzerne · Iowa · United States

ZIP code 52257 — Luzerne

ZIP code 52257 serves Luzerne, Iowa.

Postal code
52257
Single source Value from one source, not cross-checked.
City
Luzerne
County
Benton FIPS 19011
State
Iowa
Country
United States
Coordinates
41.9061, -92.1793 — precision precise (locality)
View on OpenStreetMap
Population
247 (ZCTA, ACS 5-year)
Population density
15 / sq mi
Land area
16.6 sq mi (43.1 km²) (ZCTA, ACS 5-year)
Median household income
$104,750
Per-capita income
$50,702
Median age
50.8
Households
101
Housing units
106
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
319 (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 84°F), coldest Jan (avg low 10°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F283346607180848276634734
Avg low °F101426374960636051392717
Precip in1.11.32.03.74.45.24.14.13.52.92.11.6

NOAA 1991–2020 climate normals from the nearest station: BELLE PLAINE (5.3 mi) · NOAA NCEI

Places in ZIP 52257

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