Caldwell Population 2026
Caldwell has a population of 51,686, making it the #839 biggest city in 🇺🇸 United States, located in Idaho. It is about 170× smaller than New York City, the country's biggest city.
Population (city proper)
51,686
Rank in United States
#839
Coordinates
43.66°N, 116.69°W
~724 m elevation · America/Boise
Distance to capital (Washington)
3,323 km
2,064 miles, straight line
Other big cities in Idaho
| City | Population | Rank in United States |
|---|---|---|
| Boise | 235,684 | #97 |
| Meridian | 90,739 | #375 |
| Nampa | 89,839 | #379 |
| Idaho Falls | 59,184 | #698 |
| Pocatello | 54,441 | #779 |
| Coeur d'Alene | 49,122 | #894 |
| Twin Falls | 47,468 | #932 |
| Lewiston | 32,544 | #1421 |
Cities near Caldwell
FAQ
What is the population of Caldwell?
Caldwell has a population of 51,686 (city proper, latest official figure via GeoNames), making it the #839 biggest city in United States.
What state is Caldwell in?
Caldwell is located in Idaho, United States.
Is Caldwell the capital of United States?
No, the capital of United States is Washington D.C., about 3,323 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.
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