Waldo URL: https://knowledge.ivjn.us/en/places/ar-waldo.html Waldo is a town in Columbia County, Arkansas, United States. **Waldo** is a town in [Columbia County](https://knowledge.ivjn.us/en/places/ar-columbia-county.html), [Arkansas](https://knowledge.ivjn.us/en/places/arkansas.html), United States[^geonames]. Updated: 2026-11-01 Relations: - Located in: Columbia County https://knowledge.ivjn.us/en/places/ar-columbia-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip