
Waldo
- County:
- Columbia County
- County Seat:
- No
- Area (mi²):
- 2.194
- State:
- Arkansas
Waldo is a city located in Columbia County, Arkansas. Waldo has a 2025 population of 1,102. Waldo is currently declining at a rate of -0.72% annually and its population has decreased by -3.67% since the most recent census, which recorded a population of 1,144 in 2020.
The average household income in Waldo is $50,401 with a poverty rate of 21.57%. The median age in Waldo is 46.1 years: 38.9 years for males, and 57.1 years for females.