ZIP code · Trenton · New Jersey · United States

ZIP code 08644 — Trenton

ZIP code 08644 serves Trenton, New Jersey.

Postal code: 08644
Single source Value from one source, not cross-checked.
City: Trenton
County: Mercer
State: New Jersey
Country: United States
Coordinates: 40.2171, -74.7429 — precision precise (locality)
View on OpenStreetMap
Time zone: America/New_York (UTC−5 / UTC−4 DST)
Area codes: 609, 640
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 08644 with another ZIP · ZIPs within 25 miles · distance from 08644

Climate — monthly normals

Warmest month Jul (avg high 87°F), coldest Jan (avg low 23°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	40	43	51	63	73	82	87	84	78	66	55	45
Avg low °F	23	24	31	41	50	59	65	63	56	44	35	26
Precip in	3.6	2.8	4.4	3.6	3.5	4.7	4.8	4.3	4.1	4.0	3.2	4.3

NOAA 1991–2020 climate normals from the nearest station: TRENTON STATE COLLEGE (4.5 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. Data generated on 2026-08-21. Methodology · Report an error on this page