New Castle is a city in Henry County, Indiana, United States.

In the past, it was a manufacturing center for the production of sheet iron and steel, automobiles, caskets, clothing, scales, bridges, pianos, furniture, handles, shovels, lathes, bricks, and flour.

[6] Starting in the early 20th century, it was known as the Rose City, at one point having 100 florists and numerous growers.

New Castle Correctional Facility, with a capacity of over 3,500 inmates, is located just north of the city.

[9] The Maxwell automobile factory, later owned and operated by Chrysler Motor Corp. was, at the time of construction (1907), the largest automotive manufacturing plant in the nation.

[10] The Chrysler Enclosure, Gen. William Grose House, Henry County Courthouse, and New Castle Commercial Historic District are listed on the National Register of Historic Places.

[12] Climate is designated as Humid continental, and this region typically has large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters.

51.6% of New Castle residents were employed, working a mean of 40.4 hours per week.

The median gross rent in New Castle was $690 and the homeownership rate was 63.2%.

As of the census[17] of 2010, there were 18,114 people, 7,769 households, and 4,660 families residing in the city.

34.9% of all households were made up of individuals, and 15.8% had someone living alone who was 65 years of age or older.

As of the census[4] of 2000, there were 17,780 people, 7,462 households, and 4,805 families residing in the city.

Some 31.5% of all households were made up of individuals, and 15.3% had someone living alone who was 65 years of age or older.

The mayor is elected by popular vote and appoints the police chief, fire chief, city attorney, and department heads of the various municipal agencies.