Electricity Generation Aggregated by Oregon County

State Rank	County	Net Generation (Past Year)	Power Plants
#13	Clackamas County, OR	828.8 GWh	38
#16	Marion County, OR	439.9 GWh	31
#3	Morrow County, OR	8.5 TWh	24
#8	Klamath County, OR	3.6 TWh	24
#1	Umatilla County, OR	11.4 TWh	21
#21	Lake County, OR	272.0 GWh	19
#26	Yamhill County, OR	72.1 GWh	15
#19	Malheur County, OR	341.1 GWh	15
#12	Douglas County, OR	829.5 GWh	15
#15	Jackson County, OR	709.7 GWh	14
#7	Gilliam County, OR	4.0 TWh	14
#2	Sherman County, OR	10.9 TWh	12
#14	Lane County, OR	794.2 GWh	12
#10	Jefferson County, OR	1.3 TWh	10
#29	Polk County, OR	25.8 GWh	10
#11	Baker County, OR	1.2 TWh	9
#17	Linn County, OR	417.1 GWh	9
#24	Deschutes County, OR	92.2 GWh	8
#6	Multnomah County, OR	4.1 TWh	8
#18	Crook County, OR	393.8 GWh	7
#4	Wasco County, OR	7.1 TWh	7
#31	Washington County, OR	735.0 MWh	6
#28	Hood River County, OR	41.5 GWh	4
#23	Harney County, OR	95.9 GWh	4
#5	Columbia County, OR	5.9 TWh	3
#30	Josephine County, OR	4.7 GWh	3
#25	Benton County, OR	79.6 GWh	3
#22	Clatsop County, OR	176.9 GWh	2
#20	Union County, OR	305.8 GWh	2
#9	Wallowa County, OR	2.0 TWh	2
#27	Lincoln County, OR	47.0 GWh	1

Net Generation data is based on the last 12 months since Dec 2025

Totals are based on the most recent 12 months net generation

List of All Oregon Counties