Cost of living in New Castle, CO

New Castle is a Census town in Garfield County, CO. ACS 2024 5-year population is 4,880. Median gross rent is $1,393 (ACS 2024 5-year, this place). Median home value is $454,300. Median household income is $80,084. Insurance is the NAIC state average; food is a USDA plan — no town indexes.