Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#1	Maricopa County, AZ	81.0 TWh	88
#2	Harris County, TX	39.6 TWh	96
#3	York County, PA	36.0 TWh	16
#4	Burke County, GA	35.9 TWh	7
#5	Kern County, CA	34.9 TWh	313
#6	Clark County, NV	31.3 TWh	79
#7	Oswego County, NY	29.8 TWh	33
#8	Limestone County, AL	29.3 TWh	2
#9	Will County, IL	28.8 TWh	40
#10	Salem County, NJ	27.4 TWh	8
#11	Luzerne County, PA	27.0 TWh	10
#12	Polk County, FL	26.6 TWh	37
#13	Palm Beach County, FL	26.5 TWh	11
#14	Monroe County, MI	25.7 TWh	4
#15	Grant County, WA	25.0 TWh	9
#16	Matagorda County, TX	22.2 TWh	10
#17	Grundy County, IL	22.1 TWh	10
#18	Oconee County, SC	22.1 TWh	4
#19	Fort Bend County, TX	21.6 TWh	29
#20	St. Charles Parish, LA	21.6 TWh	6
#21	San Luis Obispo County, CA	20.7 TWh	22
#22	LaSalle County, IL	20.5 TWh	23
#23	Miami-Dade County, FL	20.1 TWh	12
#24	Mecklenburg County, NC	20.0 TWh	8
#25	Montgomery County, PA	19.9 TWh	13
#26	Ogle County, IL	19.8 TWh	12
#27	St. Lucie County, FL	19.6 TWh	16
#28	Somervell County, TX	18.9 TWh	2
#29	Jefferson County, AL	18.9 TWh	4
#30	Los Angeles County, CA	18.9 TWh	308
#31	Gallia County, OH	18.8 TWh	2
#32	York County, SC	18.8 TWh	4
#33	Berrien County, MI	18.4 TWh	7
#34	Louisa County, VA	17.6 TWh	9
#35	St. Clair County, MI	17.6 TWh	11
#36	Southeastern Connecticut Planning Region, CT	17.1 TWh	51
#37	Beaver County, PA	17.0 TWh	12
#38	Cobb County, GA	16.7 TWh	5
#39	Rock Island County, IL	16.4 TWh	7
#40	Mobile County, AL	16.1 TWh	9
#41	Rhea County, TN	16.0 TWh	3
#42	Pope County, AR	15.7 TWh	2
#43	Franklin County, MO	15.5 TWh	1
#44	Brunswick County, NC	15.4 TWh	6
#45	Citrus County, FL	15.2 TWh	3
#46	Niagara County, NY	15.0 TWh	26
#47	Calvert County, MD	14.7 TWh	2
#48	Riverside County, CA	14.7 TWh	159
#49	Surry County, VA	14.6 TWh	6
#50	Rockingham County, NH	14.5 TWh	6
#51	Ottawa County, MI	14.5 TWh	14
#52	Heard County, GA	14.3 TWh	6
#53	Bexar County, TX	14.0 TWh	35
#54	Appling County, GA	14.0 TWh	2
#55	Queens County, NY	14.0 TWh	22
#56	Houston County, AL	13.7 TWh	2
#57	Hillsborough County, FL	13.4 TWh	34
#58	Northampton County, PA	13.3 TWh	11
#59	Calcasieu Parish, LA	13.3 TWh	12
#60	Robertson County, TX	13.2 TWh	7
#61	Contra Costa County, CA	13.2 TWh	56
#62	Broward County, FL	13.0 TWh	7
#63	Lee County, AL	12.9 TWh	4
#64	San Bernardino County, CA	12.8 TWh	204
#65	Okeechobee County, FL	12.7 TWh	10
#66	Ector County, TX	12.5 TWh	20
#67	Rusk County, TX	12.4 TWh	3
#68	Jefferson County, KY	12.3 TWh	6
#69	Mercer County, ND	12.2 TWh	6
#70	Brazoria County, TX	12.2 TWh	49
#71	Hamilton County, TN	12.1 TWh	5
#72	Berkeley County, SC	11.8 TWh	8
#73	Rosebud County, MT	11.7 TWh	5
#74	Choctaw County, MS	11.7 TWh	3
#75	Emery County, UT	11.5 TWh	8
#76	Iberville Parish, LA	11.4 TWh	9
#77	Guernsey County, OH	11.4 TWh	1
#78	Coffey County, KS	11.4 TWh	5
#79	Claiborne County, MS	11.4 TWh	1
#80	Umatilla County, OR	11.3 TWh	17
#81	Effingham County, GA	11.3 TWh	7
#82	Bartow County, GA	11.3 TWh	3
#83	Putnam County, FL	11.3 TWh	10
#84	Greensville County, VA	11.3 TWh	7
#85	Chelan County, WA	11.2 TWh	6
#86	Union County, NJ	11.0 TWh	21
#87	Wharton County, TX	10.9 TWh	18
#88	Autauga County, AL	10.9 TWh	5
#89	St. Clair County, IL	10.9 TWh	9
#90	Carroll County, KY	10.9 TWh	1
#91	Delaware County, PA	10.9 TWh	7
#92	Jackson County, MS	10.8 TWh	3
#93	Anderson County, SC	10.8 TWh	17
#94	Guadalupe County, TX	10.7 TWh	10
#95	Weld County, CO	10.5 TWh	60
#96	Manitowoc County, WI	10.4 TWh	7
#97	Brunswick County, VA	10.4 TWh	5
#98	Richmond County, NC	10.4 TWh	17
#99	Mayes County, OK	10.3 TWh	13
#100	Gibson County, IN	10.3 TWh	3

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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