New Augusta
- County:
- Perry County
- County Seat:
- Yes
- Area (mi²):
- 5.144
- State:
- Mississippi
New Augusta is a town located in Perry County, Mississippi. New Augusta has a 2026 population of 541. It is also the county seat of Perry County. New Augusta is currently declining at a rate of -0.55% annually and its population has decreased by -2.17% since the most recent census, which recorded a population of 553 in 2020.