Providence -- U.S. County in Rhode Island Population (2000): 621602 Housing Units (2000): 253214 Land area (2000): 413.267043 sq. miles (1070.356682 sq. km) Water area (2000): 22.557501 sq. miles (58.423658 sq. km) Total area (2000): 435.824544 sq. miles (1128.780340 sq. km) Located within: Rhode Island (RI), FIPS 44 Location: 41.852849 N, 71.456165 W Headwords: Providence Providence, RI Providence County Providence County, RI