Towns & cities
Monaghan
County town of County Monaghan, Ireland
Wikipedia names Monaghan as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Monaghan. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landscapes & nature
Rossmore Forest Park
Ireland · 2 km south
Park on the Cavan-Monaghan county border, Ireland
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Towns & cities
Clones
Ireland · 19 km south-west
Town in County Monaghan, Ireland
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Towns & cities
Armagh
Northern Ireland · 23 km north-east
County town of County Armagh in Northern Ireland
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Towns & cities
Redhills
Ireland · 28 km south-west
Human settlement in County Cavan, Ireland