ZIP code · Collinsville · Illinois · United States

ZIP code 62234 — Collinsville

ZIP code 62234 serves Collinsville, Illinois.

Postal code
62234
Single source Value from one source, not cross-checked.
City
Collinsville
County
Madison FIPS 17119
State
Illinois
Country
United States
Coordinates
38.6835, -89.9853 — precision precise (locality)
View on OpenStreetMap
Population
31,832 (ZCTA, ACS 5-year)
Population density
854 / sq mi
Land area
37.3 sq mi (96.5 km²) (ZCTA, ACS 5-year)
Median household income
$66,437
Per-capita income
$40,245
Median age
40.2
Households
14,028
Housing units
14,947
Median home value
$162,000
Median gross rent
$995 / month
Congressional districts
IL-13 (also IL-15, IL-12) (119th Congress)
USDA hardiness zone
7a (0 to 5 °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 codes
618, 730
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 89°F), coldest Jan (avg low 24°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F404656687786898881695544
Avg low °F242836465765696657463629
Precip in2.52.03.34.54.84.43.73.73.43.13.32.3

NOAA 1991–2020 climate normals from the nearest station: CAHOKIA ST LOUIS AP (12.1 mi) · NOAA NCEI

Places in ZIP 62234

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