EIA data through August 2026 · updated 2026-10-29

Idaho electricity rates

Idaho homes paid 13.4¢ per kWh in August 2026 — +10.7% from a year earlier. That is #5 cheapest of 51; the U.S. average was 18.2¢.

ID average13.4¢Aug 2026

12-month average12.8¢

Rank (cheapest)#5of 51

Utilities14

ZIP codes312

Idaho electricity price trend

Idaho averageU.S. average

Aug 202613.4¢per kWh

vs. 1 year ago+10.7%12.1¢

vs. 5 years ago+24.8%10.7¢

Record high14.4¢Jun 2026

Avg. home bill$1371,026 kWh, Aug

EIA forecast, Mountain14.7¢Dec 2027

Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the Mountain region, which includes Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming.

Heating this winter? Compare heating oil, propane, gas and a heat pump in Idaho →

Utilities in Idaho

14 utilities · 9 report monthly

Monthly home price by utility

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Each line is one utility (EIA-861M, 9 utilities that report monthly); the teal line is the Idaho average. Hover or tap a line — or a row in the table — to highlight it.

	│ = ID average, same period
Idaho Power Co. Investor Owned · monthly data	13.3¢Jan–Aug 2026	+2.4%	+13.4%	$108	525,751
Avista Corp Investor Owned · monthly data	12.9¢Jan–Aug 2026	-0.6%	+11.4%	$102	128,226
PacifiCorp Investor Owned · monthly data	13.6¢Jan–Aug 2026	+4.1%	+12%	$109	74,170
Adjustment 2024	10.0¢2024	-13.6%	—	$116	34,854
Kootenai Electric Cooperative Cooperative · monthly data	14.6¢Jan–Aug 2026	+12.1%	+19.6%	$138	30,378
City of Idaho Falls (ID) Municipal · monthly data	9.8¢Jan–Aug 2026	-24.5%	+6.4%	$88	28,142
Northern Lights, Inc. Cooperative	11.5¢2024	-0.8%	—	$124	18,511
Fall River Rural Elec Coop Inc. Cooperative	11.1¢2024	-4%	—	$130	15,433
United Electric Co.-op, Inc. (ID) Cooperative	7.9¢2024	-31.9%	—	$130	5,100
Salmon River Electric Coop Inc. Cooperative · monthly data	11.0¢Jan–Aug 2026	-15.6%	+22.1%	$119	2,383
Inland Power & Light Company Cooperative	8.9¢2024	-23%	—	$130	2,115
Lower Valley Energy Inc. Cooperative · monthly data	8.5¢Jan–Aug 2026	-34.8%	+17.4%	$77	1,636
Raft Rural Elec Coop Inc. Cooperative · monthly data	11.0¢Jan–Aug 2026	-15.6%	+19.7%	$137	1,391
Missoula Electric Coop, Inc. Cooperative · monthly data	11.7¢Jan–Aug 2026	-10.4%	+16.7%	$126	46

Bars: average home price (same color scale as the map). The thin line and “vs. ID avg.” use the Idaho average of the same period — 2024 for yearly figures, 2026 so far for monthly ones. “vs. 2024” compares this year’s monthly average with the 2024 annual average. Click a column header to sort. Small utilities that report only totals are left out.

All ZIP codes in Idaho

83201Pocatello 83202Pocatello 83203Fort Hall 83204Pocatello 83205Pocatello 83206Pocatello 83209Pocatello 83210Aberdeen 83211American Falls 83212Arbon 83213Arco 83214Arimo 83217Bancroft 83218Basalt 83220Bern 83221Blackfoot 83223Bloomington 83226Challis 83227Clayton 83228Clifton 83229Cobalt 83232Dayton 83233Dingle 83234Downey 83235Ellis 83236Firth 83237Franklin 83238Geneva 83239Georgetown 83241Grace 83243Holbrook 83244Howe 83245Inkom 83246Lava Hot Springs 83250McCammon 83251Mackay 83252Malad City 83253May 83254Montpelier 83255Moore 83261Paris 83262Pingree 83263Preston 83271Rockland 83272Saint Charles 83274Shelley 83276Soda Springs 83277Springfield 83278Stanley 83281Swanlake 83283Thatcher 83285Wayan 83286Weston 83287Fish Haven 83301Twin Falls 83302Rogerson 83303Twin Falls 83311Albion 83312Almo 83313Bellevue 83314Bliss 83316Buhl 83318Burley 83320Carey 83321Castleford 83322Corral 83323Declo 83324Dietrich 83325Eden 83327Fairfield 83328Filer 83330Gooding 83332Hagerman 83333Hailey 83334Hansen 83335Hazelton 83336Heyburn 83337Hill City 83338Jerome 83340Ketchum 83341Kimberly 83342Malta 83343Minidoka 83344Murtaugh 83346Oakley 83347Paul 83348Picabo 83349Richfield 83350Rupert 83352Shoshone 83353Sun Valley 83354Sun Valley 83355Wendell 83401Idaho Falls 83402Idaho Falls 83403Idaho Falls 83404Idaho Falls 83405Idaho Falls 83406Idaho Falls 83415Idaho Falls 83420Ashton 83421Chester 83422Driggs 83423Dubois 83424Felt 83425Hamer 83427Iona 83428Irwin 83429Island Park 83431Lewisville 83433Macks Inn 83434Menan 83435Monteview 83436Newdale 83438Parker 83440Rexburg 83441Rexburg 83442Rigby 83443Ririe 83444Roberts 83445Saint Anthony 83446Spencer 83448Sugar City 83449Swan Valley 83450Terreton 83451Teton 83452Tetonia 83455Victor 83460Rexburg 83462Carmen 83463Gibbonsville 83464Leadore 83465Lemhi 83466North Fork 83467Salmon 83468Tendoy 83469Shoup 83501Lewiston 83520Ahsahka 83522Cottonwood 83523Craigmont 83524Culdesac 83525Elk City 83526Ferdinand 83530Grangeville 83531Fenn 83533Greencreek 83535Juliaetta 83536Kamiah 83537Kendrick 83539Kooskia 83540Lapwai 83541Lenore 83542Lucile 83543Nezperce 83544Orofino 83545Peck 83546Pierce 83547Pollock 83548Reubens 83549Riggins 83552Stites 83553Weippe 83554White Bird 83555Winchester 83602Banks 83604Bruneau 83605Caldwell 83606Caldwell 83607Caldwell 83610Cambridge 83611Cascade 83612Council 83615Donnelly 83616Eagle 83617Emmett 83619Fruitland 83622Garden Valley 83623Glenns Ferry 83624Grand View 83626Greenleaf 83627Hammett 83628Homedale 83629Horseshoe Bend 83630Huston 83631Idaho City 83632Indian Valley 83633King Hill 83634Kuna 83635Lake Fork 83636Letha 83637Lowman 83638McCall 83639Marsing 83641Melba 83642Meridian 83643Mesa 83644Middleton 83645Midvale 83646Meridian 83647Mountain Home 83648Mountain Home Afb 83650Murphy 83651Nampa 83652Nampa 83653Nampa 83654New Meadows 83655New Plymouth 83656Notus 83657Ola 83660Parma 83661Payette 83666Placerville 83669Star 83670Sweet 83671Warren 83672Weiser 83676Wilder 83677Yellow Pine 83680Meridian 83686Nampa 83687Nampa 83701Boise 83702Boise 83703Boise 83704Boise 83705Boise 83706Boise 83707Boise 83708Boise 83709Boise 83711Boise 83712Boise 83713Boise 83714Garden City 83715Boise 83716Boise 83717Boise 83719Boise 83720Boise 83722Boise 83724Boise 83726Boise 83728Boise 83729Boise 83732Boise 83735Boise 83756Boise 83799Boise 83801Athol 83802Avery 83803Bayview 83804Blanchard 83805Bonners Ferry 83806Bovill 83808Calder 83809Careywood 83810Cataldo 83811Clark Fork 83812Clarkia 83813Cocolalla 83814Coeur d'Alene 83815Coeur d'Alene 83816Coeur d'Alene 83821Coolin 83822Oldtown 83823Deary 83824Desmet 83825Dover 83826Eastport 83827Elk River 83830Fernwood 83832Genesee 83833Harrison 83834Harvard 83835Hayden 83836Hope 83837Kellogg 83839Kingston 83840Kootenai 83841Laclede 83842Medimont 83843Moscow 83844Moscow 83845Moyie Springs 83846Mullan 83847Naples 83848Nordman 83849Osburn 83850Pinehurst 83851Plummer 83852Ponderay 83854Post Falls 83855Potlatch 83856Priest River 83857Princeton 83858Rathdrum 83860Sagle 83861Saint Maries 83864Sandpoint 83865Colburn 83866Santa 83867Silverton 83868Smelterville 83869Spirit Lake 83870Tensed 83871Troy 83872Viola 83873Wallace 83874Murray 83876Worley 83877Post Falls

Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.

Questions

What is the average electricity rate in Idaho?

13.4¢ per kWh for residential customers in August 2026 (EIA-861M, preliminary); the 12-month average is 12.8¢.

How does Idaho compare with other states?

Idaho ranks #5 cheapest of 51 states and D.C. The U.S. average was 18.2¢ in August 2026.

Which utility in Idaho has the lowest rates?

Among the larger utilities (over 10,000 homes), City of Idaho Falls (ID) averaged 9.3¢ per kWh in 2024. Rates depend on the plan; check the utility’s tariff.