The United States is home to a large number of plumbing companies, with an estimated total of 158,852 across the country in 2019. The states with the most plumbing companies are California (23,427) and Texas (22,848). The states with the least amount of plumbing companies are Wyoming (886) and Delaware (809). There is a large spread in the number of plumbing companies across the states, with the highest ratio being in California, where the number of plumbing companies is over 26 times greater than in Wyoming. On average, each state has 5,594 plumbing companies, with the median number at 5,902 companies. Overall, these numbers show that there is a great need for plumbing services in the United States, and that there is a wide variety of plumbing companies available to meet that need.
According to the U.S. Census Bureau, the following are the estimated number of plumbing companies by state in the United States as of 2019:
