Peoa is an unincorporated community in southwestern Summit County, Utah, United States, between Jordanelle and Rockport State Parks. It lies along State Route 32 south of the city of Coalville, the county seat of Summit County. Its elevation is 6,191 feet (1,887 m), and it is located at 40°43′29″N 111°20′31″W / 40.72472°N 111.34194°W / 40.72472; -111.34194 (40.7246718, -111.3418577). Although Peoa is unincorporated, it has a post office, with the ZIP code of 84061. The old postmasters names are Carl and Neoma Isakson. Both have died. Peoa was first settled in 1857 by William W. Phelps and others.