HVAC contractor businesses by state
Census industry: Plumbing, Heating, and Air-Conditioning Contractors (NAICS 238220). Nationwide: 111,207 employer establishments (3.3 per 10,000 residents) and 189,085 businesses without employees.
Sources: U.S. Census Bureau, County Business Patterns 2023 [source], Nonemployer Statistics 2024 [source], Population Estimates Vintage 2024 [source]. Downloaded and processed November 6, 2026. Public domain.
| California | 11,686 | 3 | 17,184 | 4.4 |
| Florida | 9,353 | 4.1 | 20,993 | 9 |
| Texas | 8,966 | 2.9 | 27,853 | 8.9 |
| New York | 7,061 | 3.6 | 9,754 | 4.9 |
| Pennsylvania | 4,154 | 3.2 | 6,154 | 4.7 |
| Illinois | 4,070 | 3.2 | 6,052 | 4.8 |
| North Carolina | 3,973 | 3.7 | 5,969 | 5.4 |
| New Jersey | 3,454 | 3.7 | 4,680 | 4.9 |
| Georgia | 3,101 | 2.8 | 8,550 | 7.6 |
| Massachusetts | 3,069 | 4.3 | 4,223 | 5.9 |
| Ohio | 2,970 | 2.5 | 5,151 | 4.3 |
| Virginia | 2,765 | 3.2 | 4,512 | 5.1 |
| Michigan | 2,661 | 2.6 | 4,405 | 4.3 |
| Colorado | 2,620 | 4.4 | 3,505 | 5.9 |
| Arizona | 2,567 | 3.4 | 4,134 | 5.5 |
| Washington | 2,242 | 2.9 | 1,467 | 1.8 |
| Indiana | 2,008 | 2.9 | 2,765 | 4 |
| Maryland | 1,986 | 3.2 | 3,789 | 6 |
| Wisconsin | 1,944 | 3.3 | 1,851 | 3.1 |
| Missouri | 1,915 | 3.1 | 3,170 | 5.1 |
| Tennessee | 1,899 | 2.7 | 5,103 | 7.1 |
| Minnesota | 1,816 | 3.2 | 1,783 | 3.1 |
| South Carolina | 1,685 | 3.1 | 3,346 | 6.1 |
| Alabama | 1,647 | 3.2 | 3,313 | 6.4 |
| Louisiana | 1,623 | 3.5 | 2,918 | 6.3 |
| Oklahoma | 1,592 | 3.9 | 2,640 | 6.4 |
| Utah | 1,443 | 4.2 | 1,354 | 3.9 |
| Kentucky | 1,379 | 3 | 2,569 | 5.6 |
| Oregon | 1,337 | 3.1 | 903 | 2.1 |
| Connecticut | 1,318 | 3.6 | 1,863 | 5.1 |
| Arkansas | 1,145 | 3.7 | 2,217 | 7.2 |
| Iowa | 1,108 | 3.4 | 1,180 | 3.6 |
| Kansas | 1,028 | 3.5 | 1,314 | 4.4 |
| Nevada | 909 | 2.8 | 1,228 | 3.8 |
| Idaho | 904 | 4.6 | 809 | 4 |
| Nebraska | 837 | 4.2 | 824 | 4.1 |
| Maine | 781 | 5.6 | 1,188 | 8.5 |
| New Hampshire | 776 | 5.5 | 1,060 | 7.5 |
| Montana | 712 | 6.3 | 470 | 4.1 |
| Mississippi | 709 | 2.4 | 2,231 | 7.6 |
| New Mexico | 691 | 3.3 | 887 | 4.2 |
| Rhode Island | 494 | 4.5 | 489 | 4.4 |
| West Virginia | 406 | 2.3 | 586 | 3.3 |
| Hawaii | 403 | 2.8 | 518 | 3.6 |
| South Dakota | 401 | 4.4 | 387 | 4.2 |
| Delaware | 344 | 3.3 | 425 | 4 |
| North Dakota | 336 | 4.3 | 228 | 2.9 |
| Wyoming | 315 | 5.4 | 250 | 4.3 |
| Vermont | 303 | 4.7 | 502 | 7.7 |
| Alaska | 264 | 3.6 | 195 | 2.6 |
| District of Columbia | 37 | 0.5 | 144 | 2.1 |
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What these counts mean — and what they don't
- Counts are not market saturation. They don't measure demand, prices, quality, how busy businesses are, or how far customers travel. A high count can mean a crowded market — or a strong one that supports many businesses.
- Employer establishments (County Business Patterns 2023) are physical locations with paid employees, counted as of mid-March. One company can have several. Self-employed people without employees, private households, railroads, agricultural production and most government are excluded. [source]
- Nonemployer businesses (Nonemployer Statistics 2024) have no paid employees, at least $1,000 in annual receipts ($1 in construction), and are subject to federal income tax. Many are part-time or side businesses. [source]
- Different years and industry definitions. Employer counts use 2017 industry codes; nonemployer counts use 2022 codes. County nonemployer figures are only published for broader industry groups, so we label which group is shown. Don't add the two counts together for a precise total.
- Per 10,000 residents uses Census population estimates for the same year as each count. It helps compare places of different sizes, nothing more.
- Employment is shown only when Census marks the figure as low or moderate noise. Census adds statistical noise to protect businesses' confidentiality. Establishment counts themselves are published without noise.
- Your business may be classified differently from these industry codes — check several related industries.
Sources
- County Business Patterns 2023 — county, state and U.S. files — U.S. Census Bureau, verified 2026-11-03
- Nonemployer Statistics 2024 — county, state and U.S. files — U.S. Census Bureau, verified 2026-11-03
- County population estimates, Vintage 2024 — U.S. Census Bureau, verified 2026-11-03
- County Business Patterns methodology (coverage, establishments, noise flags) — U.S. Census Bureau, verified 2026-11-03
- Nonemployer Statistics glossary (definition of a nonemployer business) — U.S. Census Bureau, verified 2026-11-03