Washington
- County:
- St. Landry Parish
- County Seat:
- No
- Area (mi²):
- 0.827
- State:
- Louisiana
Washington is a town located in St. Landry Parish, Louisiana. Washington has a 2026 population of 711. Washington is currently declining at a rate of -0.97% annually and its population has decreased by -4.18% since the most recent census, which recorded a population of 742 in 2020.