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The directory in figures

  • 64,702

    Contractors

  • 526

    County pages

  • 50

    States

  • Sep 28, 2026

    Last updated

Busiest counties

  1. Los Angeles County

    California · 7,047 contractors

  2. Orange County

    California · 2,378 contractors

  3. San Diego County

    California · 2,348 contractors

  4. Riverside County

    California · 2,222 contractors

  5. San Bernardino County

    California · 1,421 contractors

  6. Clark County

    Nevada · 1,204 contractors

  7. Sacramento County

    California · 1,164 contractors

  8. Santa Clara County

    California · 1,098 contractors

  9. Alameda County

    California · 798 contractors

  10. Contra Costa County

    California · 794 contractors

  11. Ventura County

    California · 776 contractors

  12. King County

    Washington · 702 contractors

Browse by county

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Or browse a state: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Contractors by county

Map of the United States with each county shaded by how many plumbers and heating and cooling contractors are listed there.New Mexico: 382 contractorsLouisiana: 44 contractorsIdaho: 340 contractorsMinnesota: 3,843 contractorsNorth Dakota: 162 contractorsSouth Dakota: 83 contractorsNew York: 2,687 contractorsAlaska: 145 contractorsGeorgia: 1,794 contractorsIndiana: 627 contractorsMichigan: 1,224 contractorsMississippi: 58 contractorsOhio: 195 contractorsTexas: 731 contractorsNebraska: 666 contractorsColorado: 908 contractorsMaryland: 987 contractorsKansas: 308 contractorsIllinois: 352 contractorsWisconsin: 1,604 contractorsCalifornia: 28,029 contractorsIowa: 1,466 contractorsPennsylvania: 1,399 contractorsMontana: 35 contractorsMissouri: 257 contractorsFlorida: 2,036 contractorsKentucky: 727 contractorsMaine: 71 contractorsUtah: 607 contractorsOklahoma: 248 contractorsTennessee: 269 contractorsOregon: 511 contractorsWest Virginia: 183 contractorsArkansas: 890 contractorsWashington: 3,543 contractorsNorth Carolina: 526 contractorsVirginia: 1,319 contractorsWyoming: 28 contractorsAlabama: 595 contractorsSouth Carolina: 169 contractorsNew Mexico: 128 contractorsNew Hampshire: 119 contractorsVermont: 30 contractorsNevada: 1,696 contractorsHawaii: 159 contractorsMassachusetts: 970 contractorsRhode Island: 120 contractorsNew Jersey: 952 contractorsDelaware: 141 contractorsConnecticut: 339 contractors
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