Diboll /ˈdaɪbɒl/ is a city in Angelina County, Texas, United States. The population was 5,359 at the 2010 census.^[1] Diboll is named for J. C. Diboll, a local timber salesman.^[4]

Diboll is located in southwestern Angelina County at 31°11′10″N 94°47′7″W ^[15] (31.186060, -94.785395).^[5] U.S. Route 59 (future Interstate 69) passes through the city, leading north 11 miles (18 km) to Lufkin, the county seat, and south 109 miles (175 km) to Houston.

According to the United States Census Bureau, the city has a total area of 4.7 square miles (12.3 km2), of which 4.7 square miles (12.2 km2) is land and 0.04 square miles (0.1 km2), or 1.20%, is water.^[1]

As of the census^[2] of 2000, there were 5,470 people, 1,424 households, and 1,107 families residing in the city. The population density was 1,141.9 people per square mile (440.9/km²). There were 1,582 housing units at an average density of 330.3 per square mile (127.5/km²). The racial makeup of the city was 53.67% White, 24.13% African American, 0.53% Native American, 0.05% Asian, 0.05% Pacific Islander, 19.40% from other races, and 2.16% from two or more races. Hispanic or Latino of any race were 37.26% of the population.

There were 1,424 households out of which 43.4% had children under the age of 18 living with them, 54.4% were married couples living together, 19.2% had a female householder with no husband present, and 22.2% were non-families. 20.6% of all households were made up of individuals and 10.0% had someone living alone who was 65 years of age or older. The average household size was 3.08 and the average family size was 3.57.

In the city, the population was spread out with 27.2% under the age of 18, 10.7% from 18 to 24, 33.8% from 25 to 44, 19.6% from 45 to 64, and 8.7% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 132.7 males. For every 100 females age 18 and over, there were 143.3 males.

The median income for a household in the city was $28,183, and the median income for a family was $31,524. Males had a median income of $29,156 versus $18,324 for females. The per capita income for the city was $10,707. About 24.0% of families and 26.0% of the population were below the poverty line, including 34.4% of those under age 18 and 17.6% of those age 65 or over.

Diboll is served by the Diboll Independent School District.

The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Diboll has a humid subtropical climate, abbreviated "Cfa" on climate maps.^[9]