Madisonville is a city in Madison County, Texas, United States. The population was 4,159 at the 2000 census. It is the county seat of Madison County. Both the City of Madisonville and the County of Madison were named for U.S. President James Madison, the fourth chief executive.
Madisonville is located at 30°57′3″N 95°54′45″W / 30.95083°N 95.9125°W / 30.95083; -95.9125 (30.950915, -95.912623).
According to the United States Census Bureau, the city has a total area of 4.3 square miles (11.1 km²), of which, 4.2 square miles (10.7 km²) of it is land and 0.2 square miles (0.4 km²) of it (3.49%) is water.