98236
Includes the very south end of Whidbey Island, from Possession point, Clinton, all the way north to Bayview, just south of Freeland. Mostly limited to the Southwest side of HWY 525, with only small portions north of HWY 525 included in Clinton proper.
98260
Includes the Village of Langley, areas just south of Langley, Saratoga Rd all the way North to Fox Spit Rd, and Bayview, Northeast of HWy 525. Also includes Useless Bay Colony neighborhood.
98249
Includes Freeland proper, Mutiny Bay, Bush Point, Interior Holmes Harbor, and areas stretching north to South Whidbey State park on the West side of HWY 525. The boudary on the East side of HWY 525 is much further South, ending at Honeymoon Bay Rd.
98253
Includes the Town of Greenbank, Smugglers Cove Rd, Lagoon point neighborhood, and North Bluff Rd neighborhoods. Also incudes Greenbank Farm, Lake Hancock, and Teronda West Neighborhoods.
98239
Includes Coupeville proper, Ledgewood, Keystone, Fort Ebey, and Penn Cove stretching North to Van Dam and Arnold Rd.
98277
Includes the City of Oak Harbor. The Southern boundary is North of Van Dam Rd, and Arnold Rd. This Whidbey island zip code encompasses all of North Whidbey Island, all the way to Deception Pass State Park except for NAS Whidbey and Gallery Golf Course.
98278
NAS Whidbey and areas around Gallery Golf Course.