Johnston Population 2026
Johnston has a population of 20,871, making it the #2273 biggest city in 🇺🇸 United States, located in Iowa. It is about 422× smaller than New York City, the country's biggest city.
Population (city proper)
20,871
Rank in United States
#2273
Coordinates
41.67°N, 93.70°W
~253 m elevation · America/Chicago
Distance to capital (Washington)
1,444 km
897 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 |
| Waterloo | 68,460 | #562 |
| Ames | 65,060 | #607 |
| West Des Moines | 64,113 | #623 |
Cities near Johnston
- Urbandale44,062 people · ~5 km away
- Ankeny56,764 people · ~10 km away
- West Des Moines64,113 people · ~11 km away
- Des Moines214,133 people · ~11 km away
- Waukee18,990 people · ~17 km away
- Indianola15,467 people · ~37 km away
FAQ
What is the population of Johnston?
Johnston has a population of 20,871 (city proper, latest official figure via GeoNames), making it the #2273 biggest city in United States.
What state is Johnston in?
Johnston is located in Iowa, United States.
Is Johnston the capital of United States?
No, the capital of United States is Washington D.C., about 1,444 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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