ZIP code · Colona · Illinois · United States

ZIP code 61241 — Colona

ZIP code 61241 serves Colona, Illinois.

Postal code
61241
Single source Value from one source, not cross-checked.
City
Colona
County
Henry FIPS 17073
State
Illinois
Country
United States
Coordinates
41.4885, -90.3210 — precision precise (locality)
View on OpenStreetMap
Population
6,637 (ZCTA, ACS 5-year)
Population density
347 / sq mi
Land area
19.1 sq mi (49.5 km²) (ZCTA, ACS 5-year)
Median household income
$78,611
Per-capita income
$41,609
Median age
42.5
Households
2,690
Housing units
2,947
Median home value
$166,500
Median gross rent
$888 / month
Congressional districts
IL-17 (also IL-16) (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 (7.3 mi) · NOAA NCEI

Places in ZIP 61241

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