New Castle is a medium-sized city located in the state of Indiana. With a population of 17,329 people and eight associated neighborhoods, New Castle is the 51st largest community in Indiana.

A relatively large number of people in New Castle telecommute to their jobs. Overall, about 7.36% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

In terms of college education, the citizens of New Castle rank slightly lower than the national average. 13.89% of adults 25 and older in New Castle have a bachelor's degree or advanced degree, while 21.84% of adults have a 4-year degree or higher in the average American community.

The per capita income in New Castle in 2022 was $28,016, which is lower middle income relative to Indiana and the nation. This equates to an annual income of $112,064 for a family of four. However, New Castle contains both very wealthy and poor people as well.

The people who call New Castle home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of New Castle residents report their race to be White, followed by Black or African-American. Important ancestries of people in New Castle include German, English, Irish, European, and Italian.

The most common language spoken in New Castle is English. Other important languages spoken here include Spanish and Italian.