Water quality for ZIP code 98278
ZIP 98278 covers Whidbey Island Station in Island County, Washington, one of 8 ZIP codes in the county. 308 active public water systems serve the county; 212 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Island County
233 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Pine Terrace Water Association |
181 | 1 | 1.1 mi | |
| Bets Water System |
50 | 4 | 1.3 mi | |
| Suburban Mobile Park |
60 | 2 | 1.5 mi | |
| Wagon Wheel |
150 | 1 | 1.6 mi | |
| Suburban Hills Community Assoc |
46 | 2 | 1.9 mi | |
| Valley High Park |
141 | 1 | 2.0 mi | |
| Whispering Pines Homeowners Coop |
116 | 1 | 2.1 mi | |
| Mahoneyville Water Assoc |
60 | 1 | 2.1 mi | |
| Parkwood Manor MHP |
301 | 0 | 2.1 mi | |
| Northgate Terrace Community Club |
750 | 2 | 2.2 mi | |
| Eastgate |
76 | 2 | 2.2 mi | |
| Westview Community Association |
43 | 0 | 2.4 mi | |
| West View Apartments Water System |
54 | 2 | 2.4 mi | |
| Oak Harbor City of |
23,675 | 1 | 2.7 mi | |
| Hillcrest Village Water CO INC |
770 | 1 | 2.9 mi | |
| Fircrest Community Water System |
150 | 1 | 3.1 mi | |
| Timaru Community Water Association |
27 | 1 | 3.1 mi | |
| Lyon RD Community Association |
50 | 1 | 3.1 mi | |
| Island Park Mobile Home Park |
60 | 2 | 3.1 mi | |
| Sunset Development Comm Club |
92 | 3 | 3.1 mi | |
| Woodland Estates |
106 | 1 | 3.2 mi | |
| Forest Hills Park Community |
54 | 2 | 3.2 mi | |
| Fairway Estates INC |
100 | 2 | 3.2 mi | |
| Sunset Ridge Community Assn |
140 | 1 | 3.2 mi | |
| Campo Hacienda |
123 | 4 | 3.4 mi |
Non-community systems in Island County (74: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Island County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Washington records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.