Waller is located at . Most land development within Waller is located near the historic town center. However, businesses oriented toward travelers are beginning to locate along the U.S. Highway 290 corridor. According to the United States Census Bureau, the city has a total area of, of which, or 0.22%, is water.
As of the census of 2000, there were 2,092 people, 768 households, and 530 families residing in the city. The population density was 1,401.1 people per square mile. There were 842 housing units at an average density of 563.9 per square mile. The racial makeup of the city was 66.20% White, 21.70% African American, 0.29% Native American, 0.86% Asian, 9.89% from other races, and 1.05% from two or more races. Hispanic or Latino of any race were 20.17% of the population. There were 768 households out of which 37.0% had children under the age of 18 living with them, 50.0% were married couples living together, 14.2% had a female householder with no husband present, and 30.9% were non-families. 21.1% of all households were made up of individuals and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.72 and the average family size was 3.19. In the city, the population was spread out with 28.9% under the age of 18, 15.4% from 18 to 24, 28.5% from 25 to 44, 17.7% from 45 to 64, and 9.5% who were 65 years of age or older. The median age was 29 years. For every 100 females, there were 98.1 males. For every 100 females age 18 and over, there were 94.5 males. The median income for a household in the city was $33,162, and the median income for a family was $42,569. Males had a median income of $30,337 versus $21,250 for females. The per capita income for the city was $14,860. About 14.3% of families and 18.3% of the population were below the poverty line, including 26.9% of those under age 18 and 11.3% of those age 65 or over.
Government and infrastructure
The current Mayor of Waller is Danny L. Marburger. He has actively served as Mayor of Waller for 33 years. The United States Postal Service Waller Post Office is located at 40090 U.S. Highway 290 Business.
Transportation
is located south of Waller in unincorporated Waller County.
Communication
The Waller Times is the only newspaper in Waller and is located at 2323 Main Street and at www.thewallertimes.com.
