
Niangua
- County:
- Webster County
- County Seat:
- No
- Area (mi²):
- 0.41
- State:
- Missouri
Niangua is a city located in Webster County, Missouri. Niangua has a 2025 population of 417. Niangua is currently growing at a rate of 1.21% annually and its population has increased by 5.84% since the most recent census, which recorded a population of 394 in 2020.
The average household income in Niangua is $42,890 with a poverty rate of 40.37%. The median age in Niangua is 30.4 years: 30.6 years for males, and 30.3 years for females.