Vermont  has the lowest number of ASCs per capita, according to data compiled by Becker's based on 2020 census data and the number of ASCs from the ASCA Association. 

Northern Arizona Healthcare will open a new cardiovascular and cardiothoracic surgery clinic in Flagstaff, Ariz.

Maryland has the highest number of ASCs per capita, according to data compiled by Becker's based on 2020 census data and the number of ASCs from the ASCA Association. 

Ascension Medical Group is set to open Ascension Medical Group Georgetown Health Center in Georgetown, Texas, on Aug. 21, according to an Aug. 18 report by NBC affiliate KXAN.

St. Louis-based BJC HealthCare plans to add a $21.3 million medical office building an hour south of the city in Farmington, Mo., according to an Aug. 21 report from the St. Louis Business Journal. 

Four major local healthcare systems are planning to open ASCs, medical office buildings or both in Folsom, Calif., according to an Aug. 18 report from the Sacramento Business Journal. 

Here are five hospitals and health systems that have opened or have plans to open ASCs that Becker's has reported on since March 28: 

Rochester, Minn.-based Olmsted Medical Center is breaking ground on a new ASC in Owatonna, Minn., according to an Aug. 13 report from local ABC station News 6.

Florence, S.C.-based McLeod Health is starting construction this fall on a $15.3 million ASC with four operating rooms and two procedural rooms in Carolina Forest, S.C., according to an Aug. 12 report from The Post and Courier. 

York, Pa.-based WellSpan Health plans to construct an ASC and medical office building in the state's South Middleton Township.

Here are three California ASCs that have opened or have plans to open that Becker's has reported on since July 26:

The previously shuttered Fulton, Mo.-based Callaway Community Hospital has rebranded to ZivaMedical Fulton and plans to reopen with an ASC, an emergency department, diagnostic imaging, laboratory services, primary care clinic and specialty clinics, according to an Aug. 5 report from the Fulton Sun.

Rockville Centre, N.Y. based Catholic Health opened an ambulatory and urgent care center in Centereach, N.Y.

Ridgecrest (Calif.) Regional Hospital completed the certification to reopen an ASC formerly owned and operated by a now-defunct private physician group, The Daily Independent reported Aug. 4. 

Sutter Health's Samaritan Court Ambulatory Care and Surgery Center was completed almost three months ahead of schedule, saving the health system about $3 million, according to an Aug. 2 report from connectcre.com.

Here are seven ASCs that recently opened or were announced in the southern U.S. reported by Becker's since July 5:

Texas is an ASC hotspot — the state has the third most ASCs in the country, according to the most recent data from CMS.

Here are 12 ASCs that opened or were announced in July:

Here are six ASCs that have opened or have plans to open in the Midwest that Becker's has reported on since June 26:

USA Health has opened a new ASC — the Mapp Family Campus Surgery Center, in Fairhope, Ala. — according to an Aug. 1 report from CBS affiliate WKRG.