What city is ZIP code 98231?

98231 is a Blaine, Washington ZIP code.

What county is 98231 in?

ZIP code 98231 is in Whatcom County, Washington.

What time zone is ZIP code 98231 in?

98231 is in the Pacific Time zone (America/Los_Angeles).

What area code is 98231?

Phone numbers in ZIP code 98231 use area code 360.

Can I use 98231 for a street address?

No. 98231 is only for PO Boxes. Street addresses in Blaine use 98230.

What ZIP codes are near 98231?

The nearest ZIP codes to 98231 are 98230 (Blaine, 2.2 miles), 98240 (Custer, 6.9 miles), 98248 (Ferndale, 11.4 miles) and 98264 (Lynden, 13.6 miles).

ZIP code 98231

Where is ZIP code 98231?

Blaine, Washington

Whatcom County · PO Box only ZIP code

ZIP code 98231 belongs to Blaine, Washington in Whatcom County. 98231 is a PO Box only ZIP code: it is used for post office boxes at the Blaine post office, not for street addresses. It is in the Pacific Time zone and uses area code 360. The closest ZIP codes are 98230 (Blaine, 2.2 mi south), 98240 (Custer, 6.9 mi southeast) and 98248 (Ferndale, 11.4 mi southeast).

ZIP code	98231
Type	PO Box only (no street delivery)
Status	Active
City	Blaine
State	Washington (WA)
County	Whatcom County
Time zone	Pacific Time · now
Area code	360
Coordinates	48.9937, -122.7471 map
3-digit prefix	982

The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.

ZIP codes near 98231

ZIP code	City	Distance	Type
98230	Blaine, WA	2.2 mi S	Standard
98240	Custer, WA	6.9 mi SE	Standard
98248	Ferndale, WA	11.4 mi SE	Standard
98264	Lynden, WA	13.6 mi E	Standard
98281	Point Roberts, WA	14 mi W	Standard
98226	Bellingham, WA	19.3 mi SE	Standard
98262	Lummi Island, WA	19.6 mi S	Standard
98247	Everson, WA	19.8 mi E	Standard
98276	Nooksack, WA	19.8 mi E	Standard
98227	Bellingham, WA	20 mi SE	PO Box only
98228	Bellingham, WA	20 mi SE	PO Box only
98225	Bellingham, WA	20.6 mi SE	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 98231 or measure the distance to another ZIP code.

How to address mail to 98231

JANE SMITH
PO BOX 123
BLAINE WA 98231

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (98231-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Blaine, WA

98230

All Blaine ZIP codes with population and income →

Questions

What city is ZIP code 98231?: 98231 is a Blaine, Washington ZIP code.
What county is 98231 in?: ZIP code 98231 is in Whatcom County, Washington.
What time zone is ZIP code 98231 in?: 98231 is in the Pacific Time zone (America/Los_Angeles).
What area code is 98231?: Phone numbers in ZIP code 98231 use area code 360.
Can I use 98231 for a street address?: No. 98231 is only for PO Boxes. Street addresses in Blaine use 98230.
What ZIP codes are near 98231?: The nearest ZIP codes to 98231 are 98230 (Blaine, 2.2 miles), 98240 (Custer, 6.9 miles), 98248 (Ferndale, 11.4 miles) and 98264 (Lynden, 13.6 miles).