About This Place
Erwin is a town in Harnett County, North Carolina, United States. The population was 4,537 at the 2000 census.
Erwin is located at 35°19′22″N 78°40′19″W / 35.32278°N 78.67194°W / 35.32278; -78.67194 (35.322840, -78.672005).
According to the United States Census Bureau, the town has a total area of 4.1 square miles (10.5 km²), of which, 4.0 square miles (10.4 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.99%) is water.