ZIP code · Ireton · Iowa · United States

ZIP code 51027 — Ireton

ZIP code 51027 serves Ireton, Iowa.

Postal code
51027
Single source Value from one source, not cross-checked.
City
Ireton
County
Sioux FIPS 19167
State
Iowa
Country
United States
Coordinates
42.9666, -96.3232 — precision precise (locality)
View on OpenStreetMap
Population
1,443 (ZCTA, ACS 5-year)
Population density
16 / sq mi
Land area
90 sq mi (233.2 km²) (ZCTA, ACS 5-year)
Median household income
$91,875
Per-capita income
$33,852
Median age
35.7
Households
463
Housing units
558
Median home value
$219,300
Median gross rent
$1,100 / 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 85°F), coldest Jan (avg low 7°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F273245597181858376624531
Avg low °F71123344758625950362313
Precip in0.70.81.73.14.04.43.23.63.32.51.31.3

NOAA 1991–2020 climate normals from the nearest station: HAWARDEN (8.6 mi) · NOAA NCEI

Places in ZIP 51027

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