Arco, Idaho

Arco, Idaho
Nickname: 
Atomic City
Location of Arco in Butte County, Idaho.
Arco, Idaho
Location in the United States
Coordinates: 43°37′33″N 113°18′06″W / 43.62583°N 113.30167°W / 43.62583; -113.30167
CountryUnited States
StateIdaho
CountyButte
Area
  Total
1.08 sq mi (2.80 km2)
  Land1.07 sq mi (2.77 km2)
  Water0.01 sq mi (0.03 km2)
Elevation
5,309 ft (1,618 m)
Population
 (2020)
  Total
879
  Density810/sq mi (310/km2)
Time zoneUTC-7 (Mountain (MST))
  Summer (DST)UTC-6 (MDT)
ZIP code
83213
Area codes208, 986
FIPS code16-03160
GNIS feature ID2409725

Arco is a city in Butte County, Idaho, United States. The population was 879 as of the 2020 United States census, down from 995 at the 2010 census. Arco is the county seat and largest city in Butte County.