ZIP code · Hartley · Iowa · United States

ZIP code 51346 — Hartley

ZIP code 51346 serves Hartley, Iowa.

Postal code
51346
Single source Value from one source, not cross-checked.
City
Hartley
County
O'Brien FIPS 19141
State
Iowa
Country
United States
Coordinates
43.1800, -95.4817 — precision precise (locality)
View on OpenStreetMap
Population
2,211 (ZCTA, ACS 5-year)
Population density
15 / sq mi
Land area
146.2 sq mi (378.6 km²) (ZCTA, ACS 5-year)
Median household income
$60,179
Per-capita income
$33,543
Median age
43.5
Households
941
Housing units
1,026
Median home value
$125,800
Median gross rent
$721 / month
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
712
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 6°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F242842576979838074604329
Avg low °F61022344758626050372312
Precip in0.91.11.93.44.54.93.43.53.32.51.61.2

NOAA 1991–2020 climate normals from the nearest station: SANBORN (9.0 mi) · NOAA NCEI

Places in ZIP 51346

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