California currently tops the list of states with the highest number of ASCs, reaching 845. California is also the most populated state in the nation, according to 2022 population data.
The least populated state in the nation, Wyoming, has 20 ASCs — still more than several other states, including Vermont, which has the fewest number of ASCs.
10 most populated states and ASC number:
1. California: 845
2. Texas: 461
3. Florida: 463
4. New York: 158
5. Pennsylvania: 246
6. Illinois: 133
7. Ohio: 198
8. Georgia: 386
9. North Carolina: 137
10. Michigan: 112
Ten least populated states and ASC number:
1. Wyoming: 20
2. Vermont: 2
3. District of Columbia: 3
4. Alaska: 18
5. North Dakota: 13
6. South Dakota: 15
7. Delaware: 21
8. Rhode Island: 14
9. Montana: 20
10. Maine: 15