Holt is an unincorporated community within Delhi Charter Township, Ingham County in the U.S. state of Michigan. It is a census-designated place (CDP) used for statistical purposes. The population was 11,315 at the 2000 census.
The community is southeast of Lansing, just south of I-96 between US-127 and M-99. The city of Mason is about 6 miles (9.7 km) southeast and the village of Dimondale is about 6 miles (9.7 km) west.
According to the United States Census Bureau, the CDP has a total area of 4.3 square miles (11.2 km²), of which, 4.3 square miles (11.2 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.46%) is water.