[5] 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. Route 290 corridor.

[6] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

[7] As of the 2020 United States census, 2,682 people, 1,024 households, and 789 families resided in the city.

The 2019 American Community Survey estimated the city had a population of 3,124,[24] up from 2,326 at the 2010 U.S. census, and 2,092 in 2000.

The current mayor of Waller is Danny L. Marburger;[25] he has actively served for 33 years.

The United States Postal Service Waller Post Office is located at 40090 U.S. Route 290 Business.

[35] Blinn operates the Waller-Harris County Campus,[36] using Schultz Junior High as the venue to offer classes; this began in 2023.