Erwin is a town that is located in the eastern part of Harnett County, North Carolina, United States, located approximately 5 miles (8.0 km) from Dunn and approximately 20 miles (32 km) from Fayetteville.

The city is a part of the Dunn, NC Micropolitan Statistical Area, which is additionally a part of the greater Raleigh-Durham-Cary, NC CSA, according to the United States Census Bureau.

The Battle of Averasborough was fought nearby during the American Civil War.

In 1925, the name was changed to "Erwin" because of the formation of Duke University in Durham, North Carolina.

[10] The Cape Fear River forms part of the western border of the town.

Juniper Creek, a tributary to the Cape Fear River, enters in Erwin.

By air Harnett Regional Jetport is the only airport in the city, which is 10 miles near Buies Creek, NC.

Campbell University Central Carolina Community College Triton High School (North Carolina) Coats-Erwin Middle Erwin Elementary: Merged with Gentry to form the new Erwin Elementary, which opened on April 18, 2022.

[12] As of the 2020 United States census, there were 4,542 people, 1,890 households, and 1,254 families residing in the town.