ZIP code · Naperville · Illinois · United States

ZIP code 60566 — Naperville

ZIP code 60566 serves Naperville, Illinois.

Postal code: 60566
Single source Value from one source, not cross-checked.
City: Naperville
County: DuPage
State: Illinois
Country: United States
Coordinates: 41.8397, -88.0887 — precision precise (locality)
View on OpenStreetMap
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: 630, 331
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.

Tools: compare 60566 with another ZIP · ZIPs within 25 miles · distance from 60566

Climate — monthly normals

Warmest month Jul (avg high 84°F), coldest Jan (avg low 15°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	32	35	47	59	71	81	84	83	76	63	48	37
Avg low °F	15	18	26	36	47	58	62	60	52	40	30	21
Precip in	2.2	2.0	2.4	3.8	4.8	4.4	4.3	4.3	3.4	3.6	2.8	2.3

NOAA 1991–2020 climate normals from the nearest station: LISLE-MORTON ARBORETUM (2.1 mi) · NOAA NCEI

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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page