Alton, Iowa

Alton, Iowa
St. Mary's Catholic Church
Location of Alton, Iowa
Coordinates: 42°59′36″N 96°0′21″W / 42.99333°N 96.00583°W / 42.99333; -96.00583
CountryUSA
StateIowa
CountySioux
IncorporatedMarch 8, 1883
Area
 • Total
1.90 sq mi (4.93 km2)
 • Land1.90 sq mi (4.93 km2)
 • Water0 sq mi (0.00 km2)
Elevation
1,316 ft (401 m)
Population
 (2020)
 • Total
1,248
 • Density656.1/sq mi (253.33/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
51003
Area code712
FIPS code19-01585
GNIS feature ID2393936
WebsiteCity of Alton

Alton is a city in Sioux County, Iowa, United States, along the Floyd River. The population was 1,248 at the 2020 census.