ZIP code 98278
Where is ZIP code 98278?
Oak Harbor, Washington
Island County · Unique ZIP code
ZIP code 98278 belongs to Oak Harbor, Washington in Island County. 98278 is a unique ZIP code assigned to a single organization (Naval Air Station) that gets a lot of mail. It is in the Pacific Time zone and uses area codes 360 and 564. About 1,932 people live in the 98278 area. The closest ZIP codes are 98277 (Oak Harbor, 2.3 mi southeast), 98257 (La Conner, 7.9 mi northeast) and 98239 (Coupeville, 8.4 mi south).
| ZIP code | 98278 |
|---|---|
| Type | Unique ZIP code for a single organization |
| Status | Active |
| City | Oak Harbor |
| Also accepted | Nas Whidbey, Whidbey Island Naval Air |
| State | Washington (WA) |
| County | Island County |
| Time zone | Pacific Time · now |
| Area codes | 360, 564 |
| Coordinates | 48.3402, -122.6695 map |
| 3-digit prefix | 982 |
Population and income in 98278
| Population | 1,932 · lower than 62% of Washington ZIP codes |
|---|---|
| People per square mile | 458 · higher than 64% of Washington ZIP codes |
| Median age | 22 years · lower than 98% of Washington ZIP codes |
| Men / women | 82% / 18% |
| Income per person | $26,907 |
| Bachelor’s degree or higher | 14% of adults 25+ |
| Housing units | 0 |
| Households | 0 |
| Land area | 4.22 sq mi (plus 1.42 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 98278. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 98278
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 98277 | Oak Harbor, WA | 2.3 mi SE | Standard |
| 98257 | La Conner, WA | 7.9 mi NE | Standard |
| 98239 | Coupeville, WA | 8.4 mi S | Standard |
| 98221 | Anacortes, WA | 11.2 mi N | Standard |
| 98238 | Conway, WA | 14.9 mi E | PO Box only |
| 98261 | Lopez Island, WA | 15.9 mi NW | Standard |
| 98282 | Camano Island, WA | 16 mi SE | Standard |
| 98292 | Stanwood, WA | 16.5 mi SE | Standard |
| 98222 | Blakely Island, WA | 16.7 mi N | Standard |
| 98253 | Greenbank, WA | 17.1 mi S | Standard |
| 98368 | Port Townsend, WA | 17.3 mi S | Standard |
| 98233 | Burlington, WA | 18.1 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 98278 or measure the distance to another ZIP code.
How to address mail to 98278
123 MAIN ST
OAK HARBOR WA 98278
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts NAS WHIDBEY and WHIDBEY ISLAND NAVAL AIR as the city name for 98278. Adding the 4-digit ZIP+4 code (98278-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Oak Harbor, WA
All Oak Harbor ZIP codes with population and income →
Questions
- What city is ZIP code 98278?
- 98278 is a Oak Harbor, Washington ZIP code. Nas Whidbey and Whidbey Island Naval Air are also accepted as the city name.
- What county is 98278 in?
- ZIP code 98278 is in Island County, Washington.
- What time zone is ZIP code 98278 in?
- 98278 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 98278?
- Phone numbers in ZIP code 98278 use area codes 360 and 564.
- What is the population of ZIP code 98278?
- About 1,932 people live in ZIP code 98278, according to the Census Bureau’s American Community Survey (2020–2024).
- Can I use 98278 for a street address?
- Only for mail to the organization it is assigned to. Other addresses in Oak Harbor use a standard ZIP code.
- What ZIP codes are near 98278?
- The nearest ZIP codes to 98278 are 98277 (Oak Harbor, 2.3 miles), 98257 (La Conner, 7.9 miles), 98239 (Coupeville, 8.4 miles) and 98221 (Anacortes, 11.2 miles).