Campbell is a city in Hunt County, Texas, United States. The population was 734 at the 2000 census. It was founded in 1880 by local settlers and was named for Postmaster General, and future Texas Governor, Thomas Campbell.
According to the United States Census Bureau, the city has a total area of 2.3 square miles (5.9 km²), all of it land.
As of the census of 2000, there were 734 people, 284 households, and 209 families residing in the city. The population density was 320.4 people per square mile (123.8/km²). There were 308 housing units at an average density of 134.4 per square mile (51.9/km²). The racial makeup of the city was 93.19% White, 0.82% African American, 1.63% Native American, 2.45% from other races, and 1.91% from two or more races. Hispanic or Latino of any race were 4.36% of the population.