Septic service areas around Phoenix

Septic systems in the valley sit mostly on larger lots at the edges, where city sewer lines don't reach. We take requests from across Maricopa County and northern Pinal County.

Area guides

• ScottsdaleNorth Scottsdale foothills homes, horse properties and the Rio Verde Foothills.
• MesaOlder large lots and county islands, and the sewer-connection rules that apply to them.
• Cave Creek and CarefreeA small town sewer system, so most Cave Creek homes are on septic. Carefree too.
• Queen CreekHorse properties and acreage, split between Maricopa and Pinal counties.
• San Tan ValleyEPCOR sewer in the subdivisions, septic on larger lots, Pinal County permits.
• Apache Junction and Gold CanyonHomes outside the sewer district's lines, mostly in Pinal County. Gold Canyon too.
• New River and Desert HillsUnincorporated desert lots with no town sewer. Desert Hills and the north Phoenix edge too.
• BuckeyeRural parcels and farm properties across one of the largest cities in the valley.

Every town we cover

• Phoenix
• Scottsdale
• Mesa
• Cave Creek
• Carefree
• New River
• Desert Hills
• Queen Creek
• San Tan Valley
• Apache Junction
• Gold Canyon
• Buckeye
• Goodyear
• Gilbert
• Chandler
• Peoria
• Glendale
• Surprise
• Fountain Hills
• Rio Verde

Maricopa or Pinal County

Most of the valley is in Maricopa County, whose Environmental Services department handles septic permits, records and ownership transfers. San Tan Valley, Gold Canyon, most of Apache Junction and the eastern and southern edges of Queen Creek are in Pinal County, where septic permits go through the Aquifer Protection Division of Community Development. The rules for selling a home on septic are statewide either way. See home-sale inspections.

Don't see your town? Call (480) 542-8315 or send a request below and we'll tell you if a contractor can reach you.

Reviewed by August Heckmann. Last reviewed October 9, 2026. How we check our information.