Demographics & People — New Castle, Indiana

Population Overview

Population (Census)17,356
Estimated 2026~17,400
Median Age41.2
Total Households7,195
Family Households4,023
Average Household Size2.35
Diversity Index0.1427 (relatively homogeneous)

Race & Ethnicity

White15,458
Black or African American654
Asian156
Hispanic or Latino450

Heritage & Ancestry

GroupCount
Unclassified or not reported6,201
Other groups3,322
German2,827
English2,254
Irish2,036
American1,988
European431
Hispanic: Hispanic or Latino359
French (except Basque)332
Hispanic: Mexican317

Language

English Only16,218
Spanish176
Population 5+16,567

Veterans

Veterans1,261
Population 18+13,826

Commuting

Mean Commute Time20.8 minutes
Work from Home8.8%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for New Castle, Indiana.