|Elevation||30 m (98 ft)|
Irwin is an unincorporated community in Merced County, California, United States. It is located 4.5 miles (7.2 km) west-northwest of Delhi and about 1 mile (1.6 km) south of Hilmar, at an elevation of 98 feet (30 m). For census purposes, Irwin is aggregated with nearby communities in the census-designated place Hilmar-Irwin, California.
- U.S. Geological Survey Geographic Names Information System: Irwin, California
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 786. ISBN 1-884995-14-4.
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