Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#1,698	Macoupin County, IL	37.5 GWh	4
#659	Madera County, CA	1.2 TWh	28
#509	Madison County, OH	2.0 TWh	5
#690	Madison County, IN	1.1 TWh	10
#1,699	Madison County, ID	37.5 GWh	1
#2,047	Madison County, NC	2.5 GWh	3
#1,806	Madison County, NE	18.5 GWh	5
#1,916	Madison County, MO	8.4 GWh	1
#1,356	Madison County, TN	168.1 GWh	4
#987	Madison County, IL	490.3 GWh	10
#1,254	Madison County, MS	241.0 GWh	1
#993	Madison County, FL	484.7 GWh	4
#1,156	Madison County, IA	330.0 GWh	2
#1,054	Madison County, GA	422.4 GWh	2
#1,558	Madison County, MT	76.2 GWh	1
#1,334	Madison County, NY	181.7 GWh	16
#1,548	Madison County, AL	79.0 GWh	2
#923	Mahaska County, IA	586.4 GWh	1
#1,753	Mahoning County, OH	26.8 GWh	3
#745	Major County, OK	894.0 GWh	3
#1,128	Malheur County, OR	354.9 GWh	15
#138	Manatee County, FL	8.8 TWh	13
#973	Manistee County, MI	505.1 GWh	3
#97	Manitowoc County, WI	10.7 TWh	7
#275	Marathon County, WI	5.0 TWh	8
#1,173	Marengo County, AL	313.0 GWh	1
#1	Maricopa County, AZ	78.5 TWh	88
#1,801	Marin County, CA	19.0 GWh	3
#1,318	Marinette County, WI	193.4 GWh	10
#892	Marion County, WV	616.4 GWh	4
#984	Marion County, TN	491.2 GWh	1
#1,298	Marion County, IA	207.4 GWh	5
#1,041	Marion County, OR	434.5 GWh	30
#870	Marion County, AR	647.3 GWh	1
#668	Marion County, TX	1.2 TWh	1
#289	Marion County, IN	4.6 TWh	24
#564	Marion County, KS	1.7 TWh	3
#1,766	Marion County, SC	24.8 GWh	11
#1,669	Marion County, OH	42.6 GWh	4
#2,089	Marion County, IL	964.0 MWh	4
#2,118	Marion County, FL	129.0 MWh	1
#1,185	Mariposa County, CA	299.7 GWh	2
#1,279	Marlboro County, SC	219.8 GWh	3
#909	Marquette County, MI	600.9 GWh	9
#1,101	Marshall County, IL	375.0 GWh	6
#1,019	Marshall County, AL	454.8 GWh	2
#1,636	Marshall County, IN	54.1 GWh	2
#1,889	Marshall County, MS	10.1 GWh	4
#325	Marshall County, IA	4.0 TWh	7
#608	Marshall County, KY	1.5 TWh	3
#651	Marshall County, KS	1.2 TWh	2
#280	Marshall County, WV	4.8 TWh	4
#131	Martin County, FL	8.9 TWh	6
#1,288	Martin County, KY	216.2 GWh	1
#839	Martin County, MN	712.6 GWh	9
#966	Martin County, NC	513.0 GWh	18
#1,231	Martin County, TX	253.9 GWh	1
#1,743	Martin County, IN	28.5 GWh	2
#196	Mason County, WV	7.0 TWh	2
#139	Mason County, KY	8.7 TWh	2
#642	Mason County, IL	1.3 TWh	4
#849	Mason County, MI	679.2 GWh	4
#1,179	Mason County, WA	304.6 GWh	3
#17	Matagorda County, TX	22.2 TWh	10
#1,428	Matanuska-Susitna Borough, AK	128.2 GWh	2
#684	Maui County, HI	1.1 TWh	19
#113	Mayes County, OK	10.0 TWh	14
#554	McClain County, OK	1.7 TWh	1
#812	McCone County, MT	751.6 GWh	2
#868	McCormick County, SC	650.7 GWh	1
#208	McCracken County, KY	6.7 TWh	4
#652	McCulloch County, TX	1.2 TWh	3
#979	McCurtain County, OK	498.8 GWh	3
#960	McDonough County, IL	521.0 GWh	5
#1,086	McHenry County, ND	391.2 GWh	2
#1,722	McHenry County, IL	32.5 GWh	21
#795	McIntosh County, ND	781.8 GWh	2
#687	McKenzie County, ND	1.1 TWh	2
#658	McKinley County, NM	1.2 TWh	6
#395	McLean County, IL	3.1 TWh	15
#157	McLean County, ND	8.0 TWh	2
#367	McLennan County, TX	3.5 TWh	14
#1,467	McLeod County, MN	109.8 GWh	21
#1,516	McNairy County, TN	92.9 GWh	5
#1,726	McPherson County, KS	32.0 GWh	3
#2,126	Meade County, KS	85.0 MWh	1
#1,131	Meade County, KY	350.2 GWh	1
#1,567	Meagher County, MT	72.8 GWh	1
#791	Mecklenburg County, VA	785.8 GWh	5
#30	Mecklenburg County, NC	19.1 TWh	8
#1,822	Mecosta County, MI	16.4 GWh	1
#1,826	Medina County, OH	15.6 GWh	6
#1,497	Meeker County, MN	100.9 GWh	9
#1,317	Meigs County, OH	194.6 GWh	2
#1,829	Menard County, TX	15.1 GWh	1
#1,865	Mendocino County, CA	12.3 GWh	5
#1,535	Menominee County, MI	85.7 GWh	5
#941	Merced County, CA	549.1 GWh	31
#1,259	Mercer County, NJ	236.5 GWh	27
#553	Mercer County, KY	1.7 TWh	3

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

Top 20 U.S. Counties by Net Generation

Totals are based on the most recent 12 months net generation

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