Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#1,165	Mason County, WA	304.6 GWh	3
#868	Mason County, MI	635.0 GWh	4
#832	Martin County, MN	717.6 GWh	9
#1,323	Martin County, KY	182.2 GWh	1
#1,222	Martin County, TX	253.9 GWh	1
#965	Martin County, NC	513.0 GWh	18
#133	Martin County, FL	8.8 TWh	6
#1,738	Martin County, IN	28.5 GWh	2
#1,885	Marshall County, MS	10.1 GWh	4
#1,629	Marshall County, IN	52.9 GWh	2
#1,010	Marshall County, AL	454.8 GWh	2
#1,096	Marshall County, IL	369.5 GWh	6
#579	Marshall County, KY	1.5 TWh	3
#303	Marshall County, WV	4.4 TWh	4
#304	Marshall County, IA	4.3 TWh	7
#644	Marshall County, KS	1.2 TWh	2
#899	Marquette County, MI	600.9 GWh	9
#1,272	Marlboro County, SC	219.8 GWh	3
#1,172	Mariposa County, CA	299.7 GWh	2
#980	Marion County, TN	491.2 GWh	1
#1,034	Marion County, OR	434.3 GWh	30
#865	Marion County, AR	647.3 GWh	1
#1,359	Marion County, IA	164.8 GWh	5
#884	Marion County, WV	616.4 GWh	4
#1,716	Marion County, OH	32.7 GWh	4
#1,762	Marion County, SC	24.8 GWh	11
#2,125	Marion County, FL	129.0 MWh	1
#2,095	Marion County, IL	964.0 MWh	4
#556	Marion County, KS	1.7 TWh	3
#663	Marion County, TX	1.2 TWh	1
#345	Marion County, IN	3.7 TWh	24
#1,304	Marinette County, WI	193.4 GWh	10
#1,798	Marin County, CA	19.0 GWh	3
#1	Maricopa County, AZ	81.0 TWh	88
#1,161	Marengo County, AL	313.0 GWh	1
#271	Marathon County, WI	5.0 TWh	8
#96	Manitowoc County, WI	10.4 TWh	7
#1,001	Manistee County, MI	461.8 GWh	3
#182	Manatee County, FL	7.5 TWh	13
#1,119	Malheur County, OR	353.6 GWh	15
#747	Major County, OK	879.0 GWh	3
#1,749	Mahoning County, OH	26.8 GWh	3
#915	Mahaska County, IA	586.5 GWh	1
#1,539	Madison County, AL	79.9 GWh	2
#1,343	Madison County, TN	172.4 GWh	4
#995	Madison County, IL	471.1 GWh	10
#1,551	Madison County, MT	76.2 GWh	1
#1,324	Madison County, NY	181.7 GWh	16
#1,151	Madison County, IA	330.0 GWh	2
#1,049	Madison County, GA	423.9 GWh	2
#1,284	Madison County, MS	214.0 GWh	1
#1,098	Madison County, FL	368.9 GWh	4
#684	Madison County, IN	1.1 TWh	10
#513	Madison County, OH	1.9 TWh	5
#1,801	Madison County, NE	18.5 GWh	5
#2,064	Madison County, NC	2.1 GWh	3
#1,914	Madison County, MO	8.4 GWh	1
#1,679	Madison County, ID	39.9 GWh	1
#724	Madera County, CA	950.7 GWh	28
#1,897	Macoupin County, IL	9.5 GWh	4
#1,531	Macon County, MO	84.9 GWh	6
#1,306	Macon County, NC	190.3 GWh	3
#893	Macon County, GA	605.1 GWh	3
#489	Macon County, IL	2.2 TWh	6
#1,383	Macomb County, MI	147.6 GWh	4
#907	Lyon County, KY	590.6 GWh	2
#1,405	Lyon County, MN	137.0 GWh	16
#930	Lyon County, NV	566.0 GWh	5
#2,154	Lyon County, IA	13.0 MWh	1
#609	Lyon County, KS	1.4 TWh	4
#466	Lynn County, TX	2.3 TWh	5
#208	Lycoming County, PA	6.6 TWh	8
#11	Luzerne County, PA	27.0 TWh	10
#509	Luna County, NM	2.0 TWh	8
#191	Lucas County, OH	6.9 TWh	11
#2,081	Lucas County, IA	1.5 GWh	1
#422	Lubbock County, TX	2.8 TWh	8
#210	Lowndes County, MS	6.6 TWh	4
#1,002	Lowndes County, GA	460.1 GWh	12
#898	Lowndes County, AL	602.0 GWh	1
#381	Lower Connecticut River Valley Planning Region, CT	3.3 TWh	16
#1,982	Love County, OK	4.8 GWh	1
#34	Louisa County, VA	17.6 TWh	9
#301	Louisa County, IA	4.4 TWh	2
#291	Loudoun County, VA	4.6 TWh	2
#641	Loudon County, TN	1.3 TWh	4
#30	Los Angeles County, CA	18.9 TWh	308
#2,111	Los Alamos County, NM	447.0 MWh	1
#551	Lorain County, OH	1.7 TWh	7
#601	Logan County, IL	1.4 TWh	6
#378	Logan County, CO	3.3 TWh	18
#771	Logan County, OK	814.5 GWh	2
#1,148	Logan County, KY	332.9 GWh	1
#942	Logan County, OH	545.5 GWh	3
#1,838	Logan County, AR	13.7 GWh	3
#346	Llano County, TX	3.7 TWh	2
#461	Livingston County, IL	2.4 TWh	13
#1,896	Livingston County, MO	9.6 GWh	3
#1,153	Livingston County, KY	328.0 GWh	1
#1,144	Livingston County, NY	334.3 GWh	12

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

Top 20 U.S. Counties by Net Generation

Totals are based on the most recent 12 months net generation

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