Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#636	Mason County, IL	1.3 TWh	4
#139	Mason County, KY	8.7 TWh	2
#1,177	Mason County, WA	304.6 GWh	3
#846	Mason County, MI	682.1 GWh	4
#833	Martin County, MN	717.3 GWh	9
#1,289	Martin County, KY	210.8 GWh	1
#967	Martin County, NC	513.0 GWh	18
#1,229	Martin County, TX	253.9 GWh	1
#1,748	Martin County, IN	28.5 GWh	2
#148	Martin County, FL	8.5 TWh	6
#610	Marshall County, KY	1.5 TWh	3
#322	Marshall County, IA	4.0 TWh	7
#298	Marshall County, WV	4.5 TWh	4
#649	Marshall County, KS	1.2 TWh	2
#1,095	Marshall County, IL	386.0 GWh	6
#1,021	Marshall County, AL	454.8 GWh	2
#1,896	Marshall County, MS	10.1 GWh	4
#1,634	Marshall County, IN	54.0 GWh	2
#904	Marquette County, MI	600.9 GWh	9
#1,273	Marlboro County, SC	219.8 GWh	3
#1,183	Mariposa County, CA	299.7 GWh	2
#1,311	Marion County, IA	194.3 GWh	5
#868	Marion County, AR	647.3 GWh	1
#991	Marion County, TN	491.2 GWh	1
#884	Marion County, WV	616.4 GWh	4
#1,047	Marion County, OR	434.3 GWh	30
#312	Marion County, IN	4.2 TWh	24
#558	Marion County, KS	1.7 TWh	3
#666	Marion County, TX	1.2 TWh	1
#1,723	Marion County, OH	32.7 GWh	4
#2,100	Marion County, IL	964.0 MWh	4
#1,772	Marion County, SC	24.8 GWh	11
#2,129	Marion County, FL	129.0 MWh	1
#1,312	Marinette County, WI	193.4 GWh	10
#1,807	Marin County, CA	19.0 GWh	3
#1	Maricopa County, AZ	78.5 TWh	88
#1,174	Marengo County, AL	313.0 GWh	1
#266	Marathon County, WI	5.1 TWh	8
#91	Manitowoc County, WI	10.8 TWh	7
#975	Manistee County, MI	505.9 GWh	3
#147	Manatee County, FL	8.6 TWh	13
#1,129	Malheur County, OR	354.5 GWh	15
#752	Major County, OK	876.0 GWh	3
#1,759	Mahoning County, OH	26.8 GWh	3
#920	Mahaska County, IA	585.6 GWh	1
#1,020	Madison County, FL	455.2 GWh	4
#995	Madison County, IL	484.0 GWh	10
#1,061	Madison County, GA	420.7 GWh	2
#1,160	Madison County, IA	330.0 GWh	2
#1,545	Madison County, AL	79.0 GWh	2
#1,555	Madison County, MT	76.2 GWh	1
#1,255	Madison County, MS	236.8 GWh	1
#1,330	Madison County, NY	181.7 GWh	16
#1,346	Madison County, TN	172.5 GWh	4
#1,924	Madison County, MO	8.4 GWh	1
#1,810	Madison County, NE	18.5 GWh	5
#2,072	Madison County, NC	2.1 GWh	3
#1,698	Madison County, ID	37.5 GWh	1
#514	Madison County, OH	1.9 TWh	5
#689	Madison County, IN	1.1 TWh	10
#684	Madera County, CA	1.1 TWh	28
#1,909	Macoupin County, IL	9.5 GWh	4
#1,533	Macon County, MO	84.6 GWh	6
#902	Macon County, GA	602.4 GWh	3
#1,318	Macon County, NC	190.3 GWh	3
#474	Macon County, IL	2.2 TWh	6
#1,382	Macomb County, MI	154.3 GWh	4
#1,409	Lyon County, MN	136.2 GWh	16
#919	Lyon County, NV	586.0 GWh	5
#910	Lyon County, KY	590.6 GWh	2
#650	Lyon County, KS	1.2 TWh	4
#461	Lynn County, TX	2.3 TWh	5
#227	Lycoming County, PA	6.2 TWh	8
#13	Luzerne County, PA	26.4 TWh	10
#529	Luna County, NM	1.8 TWh	8
#210	Lucas County, OH	6.6 TWh	11
#2,088	Lucas County, IA	1.5 GWh	1
#395	Lubbock County, TX	3.1 TWh	8
#217	Lowndes County, MS	6.5 TWh	4
#1,022	Lowndes County, GA	454.4 GWh	12
#903	Lowndes County, AL	602.0 GWh	1
#375	Lower Connecticut River Valley Planning Region, CT	3.4 TWh	16
#1,991	Love County, OK	4.6 GWh	1
#37	Louisa County, VA	17.1 TWh	9
#284	Louisa County, IA	4.8 TWh	2
#282	Loudoun County, VA	4.8 TWh	2
#647	Loudon County, TN	1.3 TWh	4
#36	Los Angeles County, CA	17.3 TWh	308
#2,115	Los Alamos County, NM	447.0 MWh	1
#557	Lorain County, OH	1.7 TWh	7
#387	Logan County, CO	3.2 TWh	18
#667	Logan County, OK	1.2 TWh	3
#601	Logan County, IL	1.5 TWh	7
#1,846	Logan County, AR	13.7 GWh	3
#1,131	Logan County, KY	353.7 GWh	1
#957	Logan County, OH	527.3 GWh	3
#357	Llano County, TX	3.6 TWh	2
#458	Livingston County, IL	2.4 TWh	13
#1,128	Livingston County, NY	355.2 GWh	12
#1,133	Livingston County, KY	348.6 GWh	1

Net Generation data is based on the last 12 months since Jan 2026

Top 20 U.S. Counties by Net Generation

Totals are based on the most recent 12 months net generation

Browse Counties By State