Electricity Generation Aggregated by Idaho County

State Rank	County	Net Generation (Past Year)	Power Plants
#8	Ada County, ID	1.2 TWh	14
#31	Adams County, ID	13.5 GWh	1
#20	Bannock County, ID	95.0 GWh	4
#12	Bingham County, ID	520.9 GWh	2
#29	Blaine County, ID	16.8 GWh	2
#24	Boise County, ID	46.8 GWh	1
#9	Bonner County, ID	1.1 TWh	2
#4	Bonneville County, ID	1.8 TWh	13
#17	Boundary County, ID	108.6 GWh	2
#34	Butte County, ID	7.8 GWh	1
#26	Canyon County, ID	38.9 GWh	4
#18	Caribou County, ID	102.4 GWh	4
#15	Cassia County, ID	282.9 GWh	10
#32	Clark County, ID	10.4 GWh	2
#6	Clearwater County, ID	1.5 TWh	2
#1	Elmore County, ID	2.9 TWh	26
#23	Franklin County, ID	48.1 GWh	2
#21	Fremont County, ID	87.7 GWh	4
#22	Gem County, ID	62.9 GWh	2
#10	Gooding County, ID	773.4 GWh	14
#33	Jefferson County, ID	9.2 GWh	1
#16	Jerome County, ID	168.0 GWh	13
#2	Kootenai County, ID	2.6 TWh	4
#35	Lemhi County, ID	56.0 MWh	1
#30	Lincoln County, ID	15.3 GWh	3
#27	Madison County, ID	37.7 GWh	1
#19	Minidoka County, ID	98.8 GWh	2
#13	Nez Perce County, ID	464.4 GWh	1
#14	Owyhee County, ID	401.4 GWh	3
#5	Payette County, ID	1.7 TWh	1
#11	Power County, ID	635.2 GWh	6
#28	Teton County, ID	24.2 GWh	2
#7	Twin Falls County, ID	1.3 TWh	40
#25	Valley County, ID	40.3 GWh	1
#3	Washington County, ID	2.3 TWh	2

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 Idaho Counties