ZIP code · Okawville · Illinois · United States

ZIP code 62271 — Okawville

ZIP code 62271 serves Okawville, Illinois.

Postal code
62271
Single source Value from one source, not cross-checked.
City
Okawville
County
Washington FIPS 17189
State
Illinois
Country
United States
Coordinates
38.4319, -89.5230 — precision precise (locality)
View on OpenStreetMap
Population
1,819 (ZCTA, ACS 5-year)
Population density
29 / sq mi
Land area
63.2 sq mi (163.6 km²) (ZCTA, ACS 5-year)
Median household income
$82,500
Per-capita income
$40,515
Median age
45.8
Households
754
Housing units
851
Median home value
$167,200
Median gross rent
$713 / month
Congressional district
IL-12 (119th Congress)
USDA hardiness zone
6b (-5 to 0 °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
618
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 87°F), coldest Jan (avg low 21°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F394454667584878680695443
Avg low °F212534455664676558463526
Precip in2.72.13.54.64.84.73.83.13.53.23.52.7

NOAA 1991–2020 climate normals from the nearest station: NASHVILLE 1 E (10.8 mi) · NOAA NCEI

Places in ZIP 62271

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