Electricity Generation Aggregated by Idaho County

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

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