Waterloo, Iowa

Waterloo, Iowa
City
Downtown Waterloo and the Cedar River Walnut Street Baptist Church Cedar Valley Arboretum Sullivan Brothers Iowa Veterans Museum at the Grout Museum District Sans Souci Island Rensselaer Russell House
Flag Seal
Location within Black Hawk County and Iowa
Waterloo Location within Iowa Waterloo Location within the United States
Coordinates: 42°30′50″N 92°20′46″W
Country	US
State	Iowa
County	Black Hawk
Incorporated	1868
Area
• City	63.43 sq mi (164.29 km2)
• Land	61.59 sq mi (159.53 km2)
• Water	1.84 sq mi (4.76 km2)
Elevation	883 ft (269 m)
Population  (2020)
• City	67,314
• Rank	8th in Iowa
• Density	1,092.8/sq mi (421.95/km2)
• Metro	169,895
Time zone	UTC−6 (CST)
• Summer (DST)	UTC−5 (CDT)
ZIP codes	50701-50707
Area code	319
FIPS code	19-82425
GNIS ID	468951
Website	cityofwaterlooiowa.com

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Waterloo is a city in and the county seat of Black Hawk County, Iowa, United States. It is the eighth-most populous city in Iowa, with a population of 67,314 at the 2020 census. Waterloo comprises a twin conurbation with neighboring municipality Cedar Falls, and is the larger of the two cities. The Waterloo – Cedar Falls metropolitan area has an estimated 170,000 residents. Waterloo is bisected into eastern and western halves by the Cedar River flowing southeastward.

Waterloo is a major manufacturing, commercial, and cultural center in Northeast Iowa. John Deere, a brand renowned for its tractors, engines, and other agricultural machinery, has been manufacturing its products in the city for over a century. Locally known as the “Factory City,” Waterloo has played a significant role in the production of these important agricultural tools since 1893. That year, the Waterloo Gasoline Engine Company began producing the first gasoline-powered tractor, which later became known as the “Waterloo Boy” brand. The city has been designated as a World War II Heritage City by the National Park Service, and is home to the headquarters of the Silos and Smokestacks National Heritage Area.