Based on data in OpenStreetMap, here is a list of townlands in Co. Monaghan.
Show on OpenStreetMap.org Edit in JOSM Edit in Potlatch
Area
Monaghan has an area of 1,300.6 km² / 321,377.0 acres / 502.2 square miles
Townlands
There are 0 townlands that we know about in Co. Monaghan. This represents 0% of all the area in Co. Monaghan.
Data Completeness
Land not covered by Townlands
Land covered by 2 (or more) Townlands
None of the townlands in Monaghan the OpenStreetMap database overlap.
Land not covered by Civil Parishes
Land covered by 2 (or more) Civil Parishes
No civil parishes overlap in Monaghan in the OpenStreetMap database.
Land not covered by Baronies
Land covered by 2 (or more) Baronies
None of the baronies in Monaghan in the OpenStreetMap database overlap.