New Castle, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of New Castle, Indiana is 17,356 as of the 2023 American Community Survey, making it the 52nd-largest city in Indiana. The median household income is $48,977, the median home value is $95,100, and the median age is 41.1.
The population has declined 4.1% since 2010 (18,123 → 17,382).
17,356
Population
2370
People / sq mi
$48,977
Median Income
$95,100
Median Home Value
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New Castle covers 7.3 sq mi of land at 2370 people per square mile.
About New Castle, IN
In New Castle, home values do the distinguishing — a median of $95,100. New Castle is a city in Indiana with a population of 17,356.
Money is tight relative to the rest of US cities: the median household earns just $48,977, below the US median of $78,538. The poverty rate is 14.8%, above the national 12.4%. Real estate is inexpensive, with a typical home worth only $95,100, with typical rent around $797.
Four-year-degree attainment is near the bottom of the range for US cities, 13.9%, below the national 35.0%. Just 7.4% of workers are home-based, below the national 14.0%, and the average commute runs about 20 minutes each way.
New Castle city Population History (2010-2024)
The city of New Castle city had a population of 18,123 in 2010 and 17,382 in 2024, a -4.1% growth over 14 years. The peak was 18,123 in 2010. Average annual growth rate: -0.30%.
17,382
Population (2024)
18,123
Population (2010)
18,123
Peak (2010)
-0.30%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 18,123 |
| 2011 | 17,965 |
| 2012 | 17,725 |
| 2013 | 17,603 |
| 2014 | 17,585 |
| 2015 | 17,487 |
| 2016 | 17,354 |
| 2017 | 17,286 |
| 2018 | 17,224 |
| 2019 | 17,113 |
| 2020 | 17,401 |
| 2021 | 17,427 |
| 2022 | 17,318 |
| 2023 | 17,357 |
| 2024 | 17,382 |
Race & Ethnicity
| White | 89.1% |
| Black or African American | 3.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Economy & Income
$48,977
Median Household Income
$28,016
Per Capita Income
14.8%
Poverty Rate
3.3%
Unemployment Rate
Housing
$95,100
Median Home Value
$797
Median Rent
62.9%
Owner-Occupied
Education
88.1%
High School+
13.9%
Bachelor's+
Commute
0.2%
Drive Alone
76.6%
Public Transit
7.4%
Work From Home
19.7 min
Avg Commute
Community Profile
20.6%
Foreign Born
97.9%
Non-English at Home
8.2%
Veterans
24.7%
With Disability
91.4%
Health Insurance
90.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 24.9% |
| Manufacturing | 19.3% |
| Finance, Insurance & Real Estate | 8.4% |
| Education, Health Care & Social Services | 8.3% |
| Arts, Entertainment & Food Services | 7.6% |
| Information | 5.5% |
| Construction | 4.1% |
| Retail Trade | 3.5% |
| Public Administration | 3.5% |
| Transportation & Warehousing | 0.5% |
| Agriculture & Mining | 0.3% |
Largest cities in Indiana
Largest counties in Indiana
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City rankings
Frequently Asked Questions
New Castle, Indiana has a population of 17,356 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 52nd-largest city in Indiana.
The median household income in New Castle, Indiana is $48,977, with 14.8% of residents living below the federal poverty level.
The median home value in New Castle, Indiana is $95,100, with median monthly rent at $797 and a homeownership rate of 62.9%.
The median age in New Castle, Indiana is 41.1 years. The population is 50.9% male and 49.1% female.
The population has declined 4.1% since 2010 (18,123 → 17,382).
Where to stay in New Castle
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Statewide data for Indiana
Population, race, income, age, and trends across Indiana
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.