Waterloo Population 2026
Waterloo has a population of 68,460, making it the #562 biggest city in 🇺🇸 United States, located in Iowa. It is about 129× smaller than New York City, the country's biggest city.
Population (city proper)
68,460
Rank in United States
#562
Coordinates
42.49°N, 92.34°W
~261 m elevation · America/Chicago
Distance to capital (Washington)
1,349 km
838 miles, straight line
Other big cities in Iowa
| City | Population | Rank in United States |
|---|---|---|
| Des Moines | 214,133 | #109 |
| Cedar Rapids | 130,405 | #217 |
| Davenport | 102,582 | #313 |
| Sioux City | 82,821 | #436 |
| Iowa City | 74,220 | #508 |
| Ames | 65,060 | #607 |
| West Des Moines | 64,113 | #623 |
| Council Bluffs | 62,597 | #640 |
Cities near Waterloo
- Cedar Falls41,255 people · ~9 km away
- Marshalltown27,620 people · ~68 km away
- Cedar Rapids130,405 people · ~79 km away
- Marion37,330 people · ~80 km away
- Mason City27,366 people · ~101 km away
- North Liberty15,931 people · ~103 km away
FAQ
What is the population of Waterloo?
Waterloo has a population of 68,460 (city proper, latest official figure via GeoNames), making it the #562 biggest city in United States.
What state is Waterloo in?
Waterloo is located in Iowa, United States.
Is Waterloo the capital of United States?
No, the capital of United States is Washington D.C., about 1,349 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
← All biggest cities in United States · United States population by year