Houstonia
- County:
- Pettis County
- County Seat:
- No
- Area (mi²):
- 0.198
- State:
- Missouri
Houstonia is a city located in Pettis County, Missouri. Houstonia has a 2026 population of 195. Houstonia is currently declining at a rate of 0% annually and its population has increased by 0.52% since the most recent census, which recorded a population of 194 in 2020.
The median household income in Houstonia is $39,337 with a poverty rate of 14.29%. The median age in Houstonia is 54.1 years: 35.5 years for males, and 61.1 years for females. For every 100 females there are 61.5 males.