The bluegrass instrumental tune Old Dangerfield by Bill Monroe was named after the town of Daingerfield.

According to the United States Census Bureau, the town has a total area of 2.4 square miles (6.2 km2), all land.

As of the 2020 United States census, there were 2,522 people, 1,035 households, and 674 families residing in the city.

Daingerfield-Lone Star Independent School District is a school district based in Daingerfield.

The school district was rated "Academically Acceptable" in 2009 by the Texas Education Agency.