ZIP code · Byron · Illinois · United States

ZIP code 61010 — Byron

ZIP code 61010 serves Byron, Illinois.

Postal code
61010
Single source Value from one source, not cross-checked.
City
Byron
County
Ogle FIPS 17141
State
Illinois
Country
United States
Coordinates
42.1292, -89.2659 — precision precise (locality)
View on OpenStreetMap
Population
7,494 (ZCTA, ACS 5-year)
Population density
196 / sq mi
Land area
38.2 sq mi (98.9 km²) (ZCTA, ACS 5-year)
Median household income
$89,907
Per-capita income
$41,987
Median age
37.9
Households
2,810
Housing units
3,049
Median home value
$218,300
Median gross rent
$981 / month
Congressional district
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 codes
815, 779
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 84°F), coldest Jan (avg low 15°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F293347607181848275624734
Avg low °F151828395060646254423120
Precip in1.61.62.43.84.25.23.84.23.62.62.31.9

NOAA 1991–2020 climate normals from the nearest station: ROCKFORD GTR ROCKFORD AP (9.9 mi) · NOAA NCEI

Places in ZIP 61010

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