Based on data in OpenStreetMap, here is a list of townlands in Co. Roscommon.
Show on OpenStreetMap.org Edit in JOSM Edit in Potlatch
Area
Roscommon has an area of 2,548.5 km² / 629,739.8 acres / 984.0 square miles
Townlands
There are 0 townlands that we know about in Co. Roscommon. This represents 0% of all the area in Co. Roscommon.
Data Completeness
Land not covered by Townlands
Land covered by 2 (or more) Townlands
None of the townlands in Roscommon the OpenStreetMap database overlap.
Land not covered by Civil Parishes
Land covered by 2 (or more) Civil Parishes
No civil parishes overlap in Roscommon in the OpenStreetMap database.
Land not covered by Baronies
Land covered by 2 (or more) Baronies
None of the baronies in Roscommon in the OpenStreetMap database overlap.