18 counties
Counties in Oregon
- Coos County1 water
- Curry County1 water
- Douglas County1 water
- Grant County2 waters
- Harney County1 water
- Jackson County2 waters
- Jefferson County1 water
- Josephine County1 water
- Klamath County3 waters
- Lane County2 waters
- Lincoln County1 water
- Linn County3 waters
- Marion County1 water
- Morrow County1 water
- Multnomah County1 water
- Umatilla County1 water
- Union County1 water
- Wallowa County1 water