New Castle Population 2026
New Castle has a population of 22,375, making it the #2125 biggest city in 🇺🇸 United States, located in Pennsylvania. It is about 393× smaller than New York City, the country's biggest city.
Population (city proper)
22,375
Rank in United States
#2125
Coordinates
41.00°N, 80.35°W
~260 m elevation · America/New_York
Distance to capital (Washington)
367 km
228 miles, straight line
Other big cities in Pennsylvania
| City | Population | Rank in United States |
|---|---|---|
| Philadelphia | 1,573,916 | #6 |
| Pittsburgh | 304,391 | #65 |
| Allentown | 120,207 | #244 |
| Erie | 99,475 | #328 |
| Reading | 87,879 | #393 |
| Scranton | 77,118 | #477 |
| Bethlehem | 74,892 | #502 |
| Bensalem | 60,427 | #678 |
Cities near New Castle
- Boardman35,376 people · ~27 km away
- Hermitage16,028 people · ~27 km away
- Youngstown64,628 people · ~28 km away
- Austintown29,677 people · ~37 km away
- Niles18,651 people · ~40 km away
- Cranberry Township28,098 people · ~41 km away
FAQ
What is the population of New Castle?
New Castle has a population of 22,375 (city proper, latest official figure via GeoNames), making it the #2125 biggest city in United States.
What state is New Castle in?
New Castle is located in Pennsylvania, United States.
Is New Castle the capital of United States?
No, the capital of United States is Washington D.C., about 367 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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