About This Place
Houstonia is a city in Pettis County, Missouri, United States. The population was 275 at the 2000 census.
Houstonia is located at 38°53′55″N 93°21′32″W / 38.89861°N 93.35889°W / 38.89861; -93.35889 (38.898487, -93.358869).
According to the United States Census Bureau, the city has a total area of 0.2 square miles (0.5 km²), all of it land.