ZIP code · Portland · Oregon · United States

ZIP code 97240 — Portland

ZIP code 97240 serves Portland, Oregon.

Postal code: 97240
Single source Value from one source, not cross-checked.
City: Portland
County: Multnomah
State: Oregon
Country: United States
Coordinates: 45.5235, -122.6762 — precision precise (locality)
View on OpenStreetMap
USDA hardiness zone: 9a (20 to 25 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone: America/Los_Angeles (UTC−8 / UTC−7 DST)
Area codes: 503, 971
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 97240 with another ZIP · ZIPs within 25 miles · distance from 97240

Climate — monthly normals

Warmest month Aug (avg high 81°F), coldest Jan (avg low 37°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	47	51	56	61	68	73	80	81	75	63	52	46
Avg low °F	37	39	41	44	49	53	58	59	55	48	42	37
Precip in	6.4	4.7	4.8	3.6	2.6	1.5	0.4	0.5	1.6	4.0	6.6	7.3

NOAA 1991–2020 climate normals from the nearest station: PORTLAND KGW-TV (0.7 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