Newellton
- County:
- Tensas Parish
- County Seat:
- No
- Area (mi²):
- 0.759
- State:
- Louisiana
Newellton is a town located in Tensas Parish, Louisiana. Newellton has a 2026 population of 828. Newellton is currently declining at a rate of -0.12% annually and its population has decreased by -6.97% since the most recent census, which recorded a population of 890 in 2020.