H.R. No. 31 is a resolution commemorating the 200th anniversary of the founding of Gonzales, Texas, which will be celebrated in 2025. The resolution highlights the city's historical significance, including its establishment as the capital of DeWitt's colony in 1825, its namesake Rafael Gonzales, and its role in the Texas Revolution, particularly the Battle of Gonzales in 1835. The resolution also notes the city's development over the years, including its growth in population and infrastructure by 1880, and its evolution into a center for agriculture and shipping.

The resolution expresses pride in the heritage of Gonzales and acknowledges the contributions of its residents to Texas history. It encourages the citizens of Gonzales to celebrate this significant milestone meaningfully and memorably. The resolution was adopted by the House of Representatives of the 89th Texas Legislature on August 27, 2025.