Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#190	McCracken County, KY	7.1 TWh	4
#932	McCormick County, SC	566.0 GWh	1
#811	McCone County, MT	756.9 GWh	2
#557	McClain County, OK	1.7 TWh	1
#113	Mayes County, OK	9.9 TWh	14
#687	Maui County, HI	1.1 TWh	21
#1,384	Matanuska-Susitna Borough, AK	164.6 GWh	2
#19	Matagorda County, TX	21.2 TWh	13
#628	Mason County, IL	1.3 TWh	6
#200	Mason County, WV	6.8 TWh	3
#143	Mason County, KY	8.7 TWh	2
#1,238	Mason County, WA	273.6 GWh	3
#890	Mason County, MI	617.8 GWh	4
#838	Martin County, MN	697.5 GWh	9
#1,287	Martin County, KY	224.8 GWh	1
#977	Martin County, NC	503.1 GWh	18
#1,230	Martin County, TX	279.9 GWh	1
#142	Martin County, FL	8.7 TWh	6
#1,770	Martin County, IN	26.7 GWh	2
#1,655	Marshall County, IN	53.3 GWh	2
#1,923	Marshall County, MS	10.0 GWh	4
#1,101	Marshall County, IL	395.5 GWh	6
#968	Marshall County, AL	509.1 GWh	2
#318	Marshall County, IA	4.1 TWh	7
#290	Marshall County, WV	4.6 TWh	4
#632	Marshall County, KY	1.3 TWh	3
#661	Marshall County, KS	1.2 TWh	2
#910	Marquette County, MI	591.3 GWh	10
#1,277	Marlboro County, SC	234.5 GWh	3
#1,239	Mariposa County, CA	272.7 GWh	2
#933	Marion County, WV	565.2 GWh	4
#1,510	Marion County, OH	102.2 GWh	4
#918	Marion County, TN	577.6 GWh	1
#1,039	Marion County, OR	438.4 GWh	31
#1,306	Marion County, IA	211.7 GWh	5
#872	Marion County, AR	647.3 GWh	1
#1,796	Marion County, SC	22.9 GWh	11
#1,593	Marion County, IL	74.6 GWh	4
#2,183	Marion County, FL	18.0 MWh	1
#297	Marion County, IN	4.5 TWh	24
#672	Marion County, TX	1.2 TWh	1
#552	Marion County, KS	1.7 TWh	3
#1,215	Marinette County, WI	291.2 GWh	10
#1,760	Marin County, CA	28.1 GWh	3
#1	Maricopa County, AZ	78.0 TWh	94
#1,198	Marengo County, AL	303.0 GWh	1
#301	Marathon County, WI	4.4 TWh	8
#98	Manitowoc County, WI	10.7 TWh	7
#996	Manistee County, MI	486.9 GWh	3
#138	Manatee County, FL	8.9 TWh	13
#1,221	Malheur County, OR	286.9 GWh	15
#730	Major County, OK	952.9 GWh	3
#1,766	Mahoning County, OH	27.4 GWh	3
#893	Mahaska County, IA	613.7 GWh	1
#1,294	Madison County, NY	219.6 GWh	17
#1,263	Madison County, IA	248.7 GWh	2
#1,564	Madison County, AL	81.4 GWh	2
#952	Madison County, FL	529.4 GWh	4
#1,349	Madison County, IN	184.4 GWh	10
#1,000	Madison County, IL	481.8 GWh	12
#1,075	Madison County, GA	413.3 GWh	2
#1,370	Madison County, TN	168.4 GWh	4
#1,273	Madison County, MS	239.0 GWh	1
#495	Madison County, OH	2.0 TWh	5
#2,105	Madison County, NC	1.8 GWh	3
#2,025	Madison County, MO	4.2 GWh	1
#2,150	Madison County, AR	127.0 MWh	1
#1,589	Madison County, MT	75.6 GWh	1
#1,815	Madison County, NE	20.1 GWh	5
#1,708	Madison County, ID	37.7 GWh	1
#665	Madera County, CA	1.2 TWh	28
#1,334	Macoupin County, IL	194.2 GWh	9
#896	Macon County, GA	608.8 GWh	3
#1,335	Macon County, NC	193.7 GWh	3
#1,556	Macon County, MO	84.9 GWh	6
#511	Macon County, IL	1.9 TWh	9
#1,392	Macomb County, MI	161.8 GWh	4
#867	Lyon County, KY	657.1 GWh	2
#1,419	Lyon County, MN	147.4 GWh	17
#868	Lyon County, NV	656.8 GWh	6
#639	Lyon County, KS	1.3 TWh	4
#2,181	Lyon County, IA	20.0 MWh	1
#458	Lynn County, TX	2.4 TWh	5
#241	Lycoming County, PA	5.7 TWh	11
#12	Luzerne County, PA	26.9 TWh	10
#472	Luna County, NM	2.2 TWh	11
#203	Lucas County, OH	6.8 TWh	11
#2,024	Lucas County, IA	4.3 GWh	1
#377	Lubbock County, TX	3.3 TWh	8
#229	Lowndes County, MS	6.1 TWh	5
#956	Lowndes County, AL	521.7 GWh	1
#1,038	Lowndes County, GA	438.5 GWh	12
#336	Lower Connecticut River Valley Planning Region, CT	3.9 TWh	16
#2,010	Love County, OK	4.8 GWh	1
#293	Louisa County, IA	4.5 TWh	2
#33	Louisa County, VA	18.1 TWh	9
#281	Loudoun County, VA	4.8 TWh	2
#685	Loudon County, TN	1.1 TWh	4
#38	Los Angeles County, CA	16.7 TWh	319
#635	Lorain County, OH	1.3 TWh	7

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

Top 20 U.S. Counties by Net Generation

Totals are based on the most recent 12 months net generation

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