According to the United States Census Bureau, the town has a total area of 2.4 square miles (6.2 km²), all of it land.
There were 957 households out of which 36.8% had children under the age of 18 living with them, 49.5% were married couples living together, 19.3% had a female householder with no husband present, and 27.4% were non-families. 25.1% of all households were made up of individuals and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.02.
In the town the population was spread out with 29.0% under the age of 18, 8.2% from 18 to 24, 25.5% from 25 to 44, 20.1% from 45 to 64, and 17.2% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 84.0 males. For every 100 females age 18 and over, there were 79.2 males.
The median income for a household in the town was $28,333, and the median income for a family was $31,625. Males had a median income of $31,154 versus $19,196 for females. The per capita income for the town was $13,689. About 20.8% of families and 23.5% of the population were below the poverty line, including 35.1% of those under age 18 and 11.1% of those age 65 or over.
Daingerfeld's athletic program has won state championships in boys basketball (1977), football (1968, 1983, 1985), boys golf (1969), and boys track (1995).
The football program is quite renowned, with three state championships, five state championship game appearances, and thirty play-off appearances.
In addition, their 1983 championship team holds the national record for fewest points scored against in a season (8), and most consecutive shutouts (13).
Former NFL players who are from or played at Daingerfield: Greg Evans - S, 1995-1998 (Bills, Redskins); Eric Everett - DB, 1988-1992 (Eagles, Bucs, Chiefs, Vikings); Thomas Everett - S, 1987-1995 (Steelers, Cowboys); David Mims - WR, 1993-1994 (Falcons); Darryl Lewis - TE (Bears); Gary Lewis - WR (Packers); John Rodgers - RB, 1982-84 (Steelers); David Whitmore - LB, 1990-1995 (Giants, 49ers, Chiefs, Eagles); Eddie White - RB (Broncos); Arthur Moore - DL (San Francisco, New England)