Electricity Generation Aggregated by Idaho County

State Rank	County	Net Generation (Past Year)	Power Plants
#3	Washington County, ID	2.1 TWh	2
#26	Valley County, ID	35.5 GWh	1
#7	Twin Falls County, ID	1.2 TWh	40
#28	Teton County, ID	26.7 GWh	2
#10	Power County, ID	659.1 GWh	6
#4	Payette County, ID	1.7 TWh	1
#13	Owyhee County, ID	416.5 GWh	3
#14	Nez Perce County, ID	389.8 GWh	1
#20	Minidoka County, ID	59.4 GWh	2
#25	Madison County, ID	39.9 GWh	1
#33	Lincoln County, ID	4.0 GWh	3
#34	Lemhi County, ID	54.0 MWh	1
#1	Kootenai County, ID	2.7 TWh	4
#24	Jerome County, ID	42.3 GWh	13
#31	Jefferson County, ID	9.2 GWh	1
#9	Gooding County, ID	737.9 GWh	14
#21	Gem County, ID	56.9 GWh	2
#16	Fremont County, ID	98.4 GWh	4
#22	Franklin County, ID	53.0 GWh	2
#2	Elmore County, ID	2.3 TWh	26
#6	Clearwater County, ID	1.4 TWh	2
#32	Clark County, ID	9.2 GWh	1
#15	Cassia County, ID	259.9 GWh	10
#17	Caribou County, ID	92.8 GWh	4
#23	Canyon County, ID	49.3 GWh	4
#30	Butte County, ID	12.5 GWh	1
#19	Boundary County, ID	66.9 GWh	2
#5	Bonneville County, ID	1.6 TWh	12
#8	Bonner County, ID	980.2 GWh	2
#27	Boise County, ID	35.5 GWh	1
#12	Bingham County, ID	470.9 GWh	2
#18	Bannock County, ID	91.3 GWh	4
#29	Adams County, ID	14.1 GWh	1
#11	Ada County, ID	657.6 GWh	11

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

Totals are based on the most recent 12 months net generation

List of All Idaho Counties