Island County property records for 6 addresses on SW Waterloo Ave, Oak Harbor, WA · Last verified October 2026
| Properties | 6 |
|---|---|
| Median Sale Price | $745,000 |
| Deeds and Mortgages on File | 11 |
| Median Price per Sqft | $262 |
| Owner Occupied | 67% |
| Median Annual Tax Bill | $7,788 |
| Median Year Built | 1972 |
| Median Ownership Tenure | 5 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
543 SW Waterloo Ave |
3 bd · 2.75 ba · 3,100 sqft built 2003 · 0.419 acres | $745,000 Sep 2020 | $7,788 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
550 SW Waterloo Ave |
4 bd · 2 ba · 2,610 sqft built 1962 · 0.413 acres | $675,000 Aug 2025 | $5,163 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
560 SW Waterloo Ave |
4 bd · 3.5 ba · 3,297 sqft built 2000 · 0.467 acres | $1,280,025 Dec 2025 | $9,095 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
633 SW Waterloo Ave |
3 bd · 2.5 ba · 2,838 sqft built 1972 · 0.4 acres | $7,512 2026 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
660 SW Waterloo Ave |
3 bd · 3 ba · 2,341 sqft built 1962 · 0.381 acres | $750,000 Jul 2021 | $7,941 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
681 SW Waterloo Ave |
3 bd · 2 ba · 2,077 sqft built 1963 · 0.439 acres | $545,000 May 2016 | $6,930 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |