Lavaca is a city located in Sebastian County, in the state of Arkansas (AR), United States. Nestled in the West South Central division of the South region, it covers an area of 2.2 square miles (6.0 km²) and sits at an elevation of 423 ft. With a population of approximately 1,825 residents, Lavaca offers a peaceful, rural atmosphere.
The town's population is composed of about 48.16% males and 51.84% females, and it has a population density of 848.84 people per square mile (327.74/km²). Lavaca lies at a latitude of 35.34 and a longitude of -94.18, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (22.7%), followed by English (7%), German (9.8%), and Scotch-Irish (2.3%) heritage. The town is identified by the ZIP code 72941.