New Castle, Indiana

New Castle is a city in Henry County, Indiana, 44 miles (71 km) east of Indianapolis, on the Big Blue River. In 1900, 3,406 people lived in the town; in 1910, 9,446; in 1920, 14,458; and in 1940, 16,620. The population was 17,396 in 2020. The city is the county seat of Henry County. New Castle is home to New Castle Fieldhouse, the largest high school gymnasium in the world.

New Castle, Indiana
City
New Castle from the air, looking east.
Location of New Castle in Henry County, Indiana.
Coordinates: 39°54′50″N 85°23′04″W
Country	United States
State	Indiana
County	Henry
Settled	1822
Area [1]
• Total	7.34 sq mi (19.02 km2)
• Land	7.32 sq mi (18.97 km2)
• Water	0.02 sq mi (0.05 km2)  0.27%
Elevation [2]	1,063 ft (324 m)
Population  (2020)[3]
• Total	17,396
• Density	2,375.20/sq mi (917.03/km2)
Time zone	UTC-5 (EST)
• Summer (DST)	UTC-4 (EDT)
ZIP code	47362
Area code	765
FIPS code	18-52740[4]
GNIS feature ID	2395191[2]
Website	www.cityofnewcastle.net/