ZIP code · Fox River Grove · Illinois · United States

ZIP code 60021 — Fox River Grove

ZIP code 60021 serves Fox River Grove, Illinois.

Postal code
60021
Single source Value from one source, not cross-checked.
City
Fox River Grove
County
McHenry FIPS 17111
State
Illinois
Country
United States
Coordinates
42.1936, -88.2205 — precision precise (locality)
View on OpenStreetMap
Population
5,108 (ZCTA, ACS 5-year)
Population density
2,496 / sq mi
Land area
2 sq mi (5.3 km²) (ZCTA, ACS 5-year)
Median household income
$122,005
Per-capita income
$50,458
Median age
41.3
Households
1,801
Housing units
1,968
Median home value
$286,400
Median gross rent
$2,134 / month
Congressional districts
IL-9 (also IL-5) (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
847, 224 (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 81°F), coldest Jan (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F293345586978817972604634
Avg low °F131627374858636154423020
Precip in2.11.92.44.05.24.64.04.63.63.42.62.2

NOAA 1991–2020 climate normals from the nearest station: BARRINGTON 3SW (6.2 mi) · NOAA NCEI

Places in ZIP 60021

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