ZIP code · Carbon Cliff · Illinois · United States

ZIP code 61239 — Carbon Cliff

ZIP code 61239 serves Carbon Cliff, Illinois.

Postal code
61239
Single source Value from one source, not cross-checked.
City
Carbon Cliff
County
Rock Island FIPS 17161
State
Illinois
Country
United States
Coordinates
41.4948, -90.3907 — precision precise (locality)
View on OpenStreetMap
Population
1,138 (ZCTA, ACS 5-year)
Population density
1,438 / sq mi
Land area
0.8 sq mi (2.1 km²) (ZCTA, ACS 5-year)
Median household income
$33,523
Per-capita income
$20,014
Median age
37.4
Households
485
Housing units
513
Median home value
$102,600
Median gross rent
$984 / month
Congressional district
IL-17 (119th Congress)
USDA hardiness zone
5b (-15 to -10 °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
309 (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 85°F), coldest Jan (avg low 14°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F313547617282858377644836
Avg low °F141828405262666456443121
Precip in1.51.62.63.84.84.64.24.13.42.62.11.9

NOAA 1991–2020 climate normals from the nearest station: LE CLAIRE L&D 14 (5.5 mi) · NOAA NCEI

Places in ZIP 61239

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