Electricity Generation Aggregated by U.S. County

National Rank	County	Net Generation (Past Year)	Power Plants
#1	Maricopa County, AZ	78.5 TWh	88
#2	Harris County, TX	39.2 TWh	96
#3	Burke County, GA	37.2 TWh	7
#4	York County, PA	35.7 TWh	16
#5	Kern County, CA	35.2 TWh	313
#6	Clark County, NV	30.8 TWh	79
#7	Limestone County, AL	30.4 TWh	2
#8	Oswego County, NY	29.9 TWh	33
#9	Grant County, WA	28.9 TWh	9
#10	Salem County, NJ	27.6 TWh	8
#11	Will County, IL	27.5 TWh	40
#12	Palm Beach County, FL	27.0 TWh	11
#13	Luzerne County, PA	26.1 TWh	10
#14	Monroe County, MI	25.7 TWh	4
#15	Polk County, FL	24.0 TWh	37
#16	Grundy County, IL	22.4 TWh	10
#17	Matagorda County, TX	22.2 TWh	10
#18	Oconee County, SC	22.0 TWh	4
#19	St. Charles Parish, LA	21.9 TWh	6
#20	Fort Bend County, TX	21.8 TWh	29
#21	Miami-Dade County, FL	20.4 TWh	12
#22	Somervell County, TX	20.1 TWh	2
#23	Montgomery County, PA	19.9 TWh	13
#24	LaSalle County, IL	19.7 TWh	23
#25	San Luis Obispo County, CA	19.7 TWh	22
#26	York County, SC	19.6 TWh	4
#27	St. Lucie County, FL	19.5 TWh	16
#28	Jefferson County, AL	19.5 TWh	4
#29	Rhea County, TN	19.3 TWh	3
#30	Mecklenburg County, NC	19.1 TWh	8
#31	Ogle County, IL	19.0 TWh	12
#32	Gallia County, OH	18.3 TWh	2
#33	Cobb County, GA	17.9 TWh	5
#34	Berrien County, MI	17.9 TWh	7
#35	Louisa County, VA	17.8 TWh	9
#36	Southeastern Connecticut Planning Region, CT	17.5 TWh	51
#37	Los Angeles County, CA	17.0 TWh	308
#38	Rockingham County, NH	17.0 TWh	6
#39	Beaver County, PA	16.9 TWh	12
#40	Rock Island County, IL	16.9 TWh	7
#41	Franklin County, MO	16.2 TWh	1
#42	Citrus County, FL	15.8 TWh	3
#43	Brunswick County, NC	15.7 TWh	6
#44	St. Clair County, MI	15.7 TWh	11
#45	Hamilton County, TN	15.6 TWh	5
#46	Pope County, AR	15.3 TWh	2
#47	Mobile County, AL	15.3 TWh	9
#48	Hillsborough County, FL	15.2 TWh	35
#49	Calvert County, MD	14.9 TWh	2
#50	Riverside County, CA	14.8 TWh	159
#51	Heard County, GA	14.7 TWh	6
#52	Calcasieu Parish, LA	14.3 TWh	12
#53	Appling County, GA	14.2 TWh	2
#54	Niagara County, NY	14.1 TWh	26
#55	Queens County, NY	13.9 TWh	22
#56	Surry County, VA	13.8 TWh	6
#57	Northampton County, PA	13.6 TWh	11
#58	Bexar County, TX	13.5 TWh	35
#59	Rusk County, TX	13.5 TWh	3
#60	Houston County, AL	13.4 TWh	2
#61	Ector County, TX	13.3 TWh	20
#62	Jefferson County, KY	13.2 TWh	6
#63	Chelan County, WA	13.1 TWh	6
#64	Robertson County, TX	13.0 TWh	7
#65	Contra Costa County, CA	13.0 TWh	56
#66	Ottawa County, MI	12.9 TWh	14
#67	Iberville Parish, LA	12.7 TWh	9
#68	Okeechobee County, FL	12.7 TWh	10
#69	Bartow County, GA	12.7 TWh	3
#70	Mercer County, ND	12.7 TWh	6
#71	Broward County, FL	12.7 TWh	7
#72	Lee County, AL	12.5 TWh	4
#73	Brazoria County, TX	12.4 TWh	50
#74	St. Clair County, IL	12.3 TWh	9
#75	Autauga County, AL	12.1 TWh	5
#76	Greensville County, VA	12.0 TWh	7
#77	San Bernardino County, CA	12.0 TWh	204
#78	Effingham County, GA	11.9 TWh	7
#79	Guernsey County, OH	11.7 TWh	1
#80	Emery County, UT	11.6 TWh	8
#81	Putnam County, FL	11.5 TWh	10
#82	Sherman County, OR	11.4 TWh	12
#83	Berkeley County, SC	11.3 TWh	8
#84	Union County, AR	11.3 TWh	3
#85	Wharton County, TX	11.3 TWh	18
#86	Douglas County, WA	11.2 TWh	1
#87	Jackson County, MS	11.1 TWh	3
#88	Monongalia County, WV	11.0 TWh	6
#89	Weld County, CO	10.9 TWh	60
#90	Union County, NJ	10.9 TWh	21
#91	Umatilla County, OR	10.9 TWh	17
#92	Anderson County, SC	10.8 TWh	17
#93	Middlesex County, NJ	10.8 TWh	71
#94	Gibson County, IN	10.7 TWh	3
#95	Cleveland County, NC	10.7 TWh	34
#96	Rosebud County, MT	10.7 TWh	5
#97	Manitowoc County, WI	10.7 TWh	7
#98	Harrison County, WV	10.6 TWh	2
#99	Choctaw County, MS	10.6 TWh	3
#100	San Juan County, NM	10.5 TWh	14

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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