Waelder is a city in Gonzales County, Texas, United States. The population was 1065 at the 2010 census.
Waelder is located at (29.693658, -97.298288).
According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.4 km2), of which, 1.3 square miles (3.4 km2) of it is land and 0.78% is water.
Waelder is home to the J Bar B Foods factory, where meat products are produced and shipped to local stores. Waelder was recently featured in a "My H-E-B" commercial.