New Boston
- County:
- Bowie County
- County Seat:
- Yes
- Area (mi²):
- 4.244
- State:
- Texas
New Boston is a city located in Bowie County, Texas. New Boston has a 2026 population of 4,546. It is also the county seat of Bowie County. New Boston is currently declining at a rate of -0.11% annually and its population has decreased by -1.69% since the most recent census, which recorded a population of 4,624 in 2020.