| County | Customers Tracked | Customers Out | |
|---|---|---|---|
| Chelan | 0 | 0 | |
| Grant | 0 | 0 | |
| Grays Harbor | 0 | 0 | |
| Island | 117,943 | 15 | |
| Jefferson | 0 | 0 | |
| King | 579,218 | 127,598 | |
| Kitsap | 92,390 | 1,777 | |
| Kittitas | 23,136 | 11 | |
| Klickitat | 0 | 0 | |
| Lewis | 0 | 0 | |
| Mason | 0 | 0 | |
| Okanogan | 0 | 0 | |
| Pend Oreille | 0 | 0 | |
| Pierce | 136,235 | 895 | |
| San Juan | 0 | 0 | |
| Skagit | 39,583 | 60 | |
| Snohomish | 2 | 2 | |
| Thurston | 72,329 | 48 | |
| Unknown | 1,097 | 0 | |
| Walla Walla | 0 | 0 | |
| Whatcom | 66,557 | 16 | |
| Yakima | 0 | 0 |
