County
Antrim
Armagh
Carlow
Cavan
City of Belfast
City of Cork
Clare
Cork E.R.
Cork W.R.
Donegal
Down
Dublin
Dublin City
Fermanagh
Galway E.R.
Galway Town
Galway W.R.
Kerry
Kildare
Kilkenny
Kilkenny City
Kings County
Leitrim
Limerick
Limerick City
Londonderry
Londonderry City
Longford
Louth
Mayo
Meath
Monaghan
Queens County
Roscommon
Sligo
Tipperary N.R.
Tipperary S.R.
Tyrone
Waterford
Waterford City
Westmeath
Wexford
Wicklow
   RIC / DMP Stations for : Monaghan

 District Station
 Carrickmacross Carrickmacross
   Ballytrain
   Castleblayney
   Coolderry
   Corrinshigagh
   Dromod
   Drumboat
   Enniskeen
   Tullyvaragh
 Clones Clones
   Ballybay
   Drum
   Newbliss
   Rockcorry
   Scotshouse
   Smithboro
 Monaghan Monaghan (twn)
   Ballinode
   Castleshane
   Cremartin
   Edenmore Cross
   Emyvale
   Glasslough
   Scotstown
   Stranooden
   Tydavnet

Notes:

List of Royal Irish Constabulary (R.I.C.) and Dublin Metropolitan Police (D.M.P.) stations c1890

The headquarters of each district is indicated in bold.

W.R., S.R. refer to West Riding, South Riding etc, which are divisions of the larger counties.

The D.M.P. served Dublin city and parts of south east County Dublin, out as far as Kingstown (now Dún Laoghaire)