Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#1	Maricopa County, AZ	78.0 TWh	94
#2	Burke County, GA	37.5 TWh	8
#3	Harris County, TX	37.5 TWh	108
#4	York County, PA	35.7 TWh	16
#5	Kern County, CA	34.3 TWh	317
#6	Clark County, NV	31.0 TWh	83
#7	Limestone County, AL	31.0 TWh	2
#8	Oswego County, NY	30.2 TWh	36
#9	Grant County, WA	29.8 TWh	9
#10	Salem County, NJ	28.1 TWh	10
#11	Palm Beach County, FL	27.0 TWh	11
#12	Luzerne County, PA	26.9 TWh	10
#13	Will County, IL	26.9 TWh	44
#14	Polk County, FL	23.5 TWh	39
#15	Monroe County, MI	23.4 TWh	5
#16	St. Charles Parish, LA	23.0 TWh	8
#17	Grundy County, IL	22.2 TWh	12
#18	Oconee County, SC	21.4 TWh	4
#19	Matagorda County, TX	21.2 TWh	13
#20	Fort Bend County, TX	21.0 TWh	30
#21	Rhea County, TN	20.6 TWh	3
#22	San Luis Obispo County, CA	20.5 TWh	22
#23	Miami-Dade County, FL	20.3 TWh	12
#24	Somervell County, TX	20.0 TWh	2
#25	Montgomery County, PA	19.8 TWh	13
#26	Ogle County, IL	19.7 TWh	12
#27	LaSalle County, IL	19.5 TWh	27
#28	Mecklenburg County, NC	19.0 TWh	8
#29	Jefferson County, AL	19.0 TWh	4
#30	Cobb County, GA	18.6 TWh	6
#31	Berrien County, MI	18.6 TWh	7
#32	York County, SC	18.4 TWh	4
#33	Louisa County, VA	18.1 TWh	9
#34	St. Lucie County, FL	18.0 TWh	16
#35	Hamilton County, TN	18.0 TWh	5
#36	Gallia County, OH	17.9 TWh	2
#37	Southeastern Connecticut Planning Region, CT	17.8 TWh	52
#38	Los Angeles County, CA	16.7 TWh	319
#39	Rock Island County, IL	16.4 TWh	7
#40	Beaver County, PA	16.3 TWh	12
#41	Mobile County, AL	16.2 TWh	9
#42	Rockingham County, NH	16.0 TWh	6
#43	Citrus County, FL	15.8 TWh	4
#44	Hillsborough County, FL	15.7 TWh	37
#45	Brunswick County, NC	15.3 TWh	6
#46	Houston County, AL	15.1 TWh	2
#47	Niagara County, NY	15.0 TWh	26
#48	Franklin County, MO	15.0 TWh	1
#49	Calvert County, MD	14.9 TWh	3
#50	Heard County, GA	14.9 TWh	6
#51	Pope County, AR	14.6 TWh	2
#52	Calcasieu Parish, LA	14.4 TWh	13
#53	St. Clair County, MI	14.2 TWh	11
#54	Robertson County, TX	14.1 TWh	8
#55	Brazoria County, TX	14.0 TWh	54
#56	Riverside County, CA	14.0 TWh	162
#57	Appling County, GA	14.0 TWh	2
#58	Rusk County, TX	13.9 TWh	3
#59	Queens County, NY	13.9 TWh	23
#60	Ector County, TX	13.8 TWh	23
#61	Northampton County, PA	13.8 TWh	11
#62	Chelan County, WA	13.6 TWh	6
#63	Mercer County, ND	13.6 TWh	6
#64	Iberville Parish, LA	13.3 TWh	10
#65	Bartow County, GA	13.1 TWh	3
#66	Wharton County, TX	13.0 TWh	21
#67	Jefferson County, KY	12.8 TWh	6
#68	Surry County, VA	12.8 TWh	6
#69	Bexar County, TX	12.7 TWh	38
#70	Union County, AR	12.6 TWh	3
#71	Broward County, FL	12.5 TWh	7
#72	Lee County, AL	12.5 TWh	4
#73	Contra Costa County, CA	12.4 TWh	59
#74	Autauga County, AL	12.4 TWh	5
#75	St. Clair County, IL	12.3 TWh	11
#76	Guernsey County, OH	12.1 TWh	1
#77	Okeechobee County, FL	12.1 TWh	10
#78	Ottawa County, MI	11.9 TWh	14
#79	Emery County, UT	11.9 TWh	8
#80	Greensville County, VA	11.8 TWh	7
#81	Douglas County, WA	11.7 TWh	1
#82	San Bernardino County, CA	11.6 TWh	208
#83	Washington County, OH	11.6 TWh	8
#84	Jackson County, MS	11.6 TWh	3
#85	Effingham County, GA	11.4 TWh	7
#86	Umatilla County, OR	11.4 TWh	19
#87	Putnam County, FL	11.2 TWh	10
#88	Weld County, CO	11.2 TWh	62
#89	Harrison County, WV	11.0 TWh	2
#90	Anderson County, SC	11.0 TWh	17
#91	Gibson County, IN	11.0 TWh	3
#92	Lake County, OH	10.9 TWh	3
#93	Choctaw County, MS	10.9 TWh	3
#94	Sherman County, OR	10.9 TWh	12
#95	Kaufman County, TX	10.9 TWh	5
#96	Berkeley County, SC	10.7 TWh	9
#97	Delaware County, PA	10.7 TWh	7
#98	Manitowoc County, WI	10.7 TWh	7
#99	Rosebud County, MT	10.5 TWh	5
#100	Middlesex County, NJ	10.5 TWh	75

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

Top 20 U.S. Counties by Net Generation

Totals are based on the most recent 12 months net generation

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