New Castle, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of New Castle, Pennsylvania is 21,727 as of the 2023 American Community Survey, making it the 29th-largest city in Pennsylvania. The median household income is $41,478, the median home value is $72,000, and the median age is 37.7.
The population has declined 8.2% since 2010 (23,243 → 21,332).
21,727
Population
2616
People / sq mi
$41,478
Median Income
$72,000
Median Home Value
Get New Castle's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
New Castle covers 8.3 sq mi of land at 2616 people per square mile.
About New Castle, PA
Housing cost is the defining feature of New Castle: the median home is valued at $72,000. With 21,727 residents, New Castle is a city in Pennsylvania. It ranks #29 among cities in Pennsylvania by population.
Household earnings sit near the bottom of the range at $41,478, below the US median of $78,538. The poverty rate, 18.9%, is among the steepest of comparable US cities and above the national 12.4%. Housing costs are among the lowest of comparable places: a median home value of $72,000, with typical rent around $698.
New Castle is among the least college-educated US cities, at 15.2% — below the national 35.0%. Around 9.3% of workers work from home, below the national 14.0%, and the average commute runs about 22 minutes each way.
New Castle city Population History (2010-2024)
The city of New Castle city had a population of 23,243 in 2010 and 21,332 in 2024, a -8.2% growth over 14 years. The peak was 23,243 in 2010. Average annual growth rate: -0.61%.
21,332
Population (2024)
23,243
Population (2010)
23,243
Peak (2010)
-0.61%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 23,243 |
| 2011 | 23,057 |
| 2012 | 22,904 |
| 2013 | 22,751 |
| 2014 | 22,581 |
| 2015 | 22,429 |
| 2016 | 22,200 |
| 2017 | 21,955 |
| 2018 | 21,795 |
| 2019 | 21,618 |
| 2020 | 21,900 |
| 2021 | 21,757 |
| 2022 | 21,525 |
| 2023 | 21,435 |
| 2024 | 21,332 |
Race & Ethnicity
| White | 77.0% |
| Black or African American | 10.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Economy & Income
$41,478
Median Household Income
$23,135
Per Capita Income
18.9%
Poverty Rate
7.3%
Unemployment Rate
Housing
$72,000
Median Home Value
$698
Median Rent
54.7%
Owner-Occupied
Education
89.5%
High School+
15.2%
Bachelor's+
Commute
1.7%
Drive Alone
75.4%
Public Transit
9.3%
Work From Home
21.5 min
Avg Commute
Community Profile
16.2%
Foreign Born
95.0%
Non-English at Home
7.5%
Veterans
23.9%
With Disability
93.6%
Health Insurance
88.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 27.0% |
| Manufacturing | 13.9% |
| Finance, Insurance & Real Estate | 7.5% |
| Education, Health Care & Social Services | 6.7% |
| Construction | 6.7% |
| Retail Trade | 6.6% |
| Information | 5.4% |
| Arts, Entertainment & Food Services | 4.6% |
| Public Administration | 4.3% |
| Transportation & Warehousing | 1.2% |
| Agriculture & Mining | 0.5% |
Largest cities in Pennsylvania
Largest counties in Pennsylvania
Part of Pennsylvania
Metro areas in Pennsylvania
City rankings
Frequently Asked Questions
New Castle, Pennsylvania has a population of 21,727 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 29th-largest city in Pennsylvania.
The median household income in New Castle, Pennsylvania is $41,478, with 18.9% of residents living below the federal poverty level.
The median home value in New Castle, Pennsylvania is $72,000, with median monthly rent at $698 and a homeownership rate of 54.7%.
The median age in New Castle, Pennsylvania is 37.7 years. The population is 46.1% male and 53.9% female.
The population has declined 8.2% since 2010 (23,243 → 21,332).
Where to stay in New Castle
Visiting or relocating to New Castle, PA? Compare hotels and short-term rentals across the metro — live availability and prices.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
More from Pennsylvania
Population 1,582,432
Population 303,620
Population 125,320
Population 94,836
Population 94,156
Full rankings of Pennsylvania cities by population
Statewide data for Pennsylvania
Population, race, income, age, and trends across Pennsylvania
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.