Ireland Registrar's Districts
and corresponding counties
| District/PLU | Volume* | County | County | County |
| Abbeyleix | 3 | Leix | ||
| Antrim | 1 | Antrim | ||
| Ardee | 2 | Louth | Meath | |
| Armagh | 1 | Armagh | Tyrone | |
| Athlone | 3 | Roscommon | Westmeath | |
| Athy | 3 | Kildare | Leix | |
| Bailieborough | 2 | Cavan | ||
| Ballina | 4 | Mayo | Sligo | |
| Ballinasloe | 4 | Galway | Roscommon | |
| Ballinrobe | 4 | Galway | Mayo | |
| BallyCastle | 1 | Antrim | ||
| Ballymahon | 3 | Longford | Westmeath | |
| Ballymena | 1 | Antrim | ||
| Ballymoney | 1 | Antrim | Derry | |
| Ballyshannon | 2 | Donegal | Fermanagh | Leitrim |
| Ballyvaghan | 4 | Clare | ||
| Balrothery | 2 | Dublin | ||
| Baltinglass | 2 | Carlow | Kildare | Wicklow |
| Banbridge | 1 | Armagh | Down | |
| Bandon | 5 | Cork | ||
| Bantry | 5 | Cork | ||
| Bawnboy | 3 | Cavan | Leitrim | |
| Belfast | 1 | Antrim | Down | |
| Belmullet | 4 | Mayo | ||
| Borrisokane | 3 | Tipperary | ||
| Boyle | 4 | Roscommon | Sligo | |
| Cahersiveen | 5 | Kerry | ||
| Callan | 4 | Kilkenny | Tipperary | |
| Carlow | 3 | Carlow | Kildare | Leix |
| Carrick on Shannon | 3 | Leitrim | ||
| Carrick on Suir | 4 | Kilkenny | Waterford | |
| Carrickmacross | 2 | Monaghan | ||
| Cashel | 3 | Tipperary | ||
| Castlebar | 4 | Mayo | ||
| Castleblayney | 1 | Armagh | Monaghan | |
| Castlecomer | 3 | Kilkenny | ||
| Castlederg | 2 | Tyrone | ||
| Castlereagh | 4 | Roscommon | ||
| Castletown | 5 | Cork | ||
| Castletowndelvin | 3 | Meath | Westmeath | |
| Cavan | 3 | Cavan | ||
| Celbridge | 2 | Dublin | Kildare | Meath |
| Claremorris | 4 | Mayo | ||
| Clifden | 4 | Galway | ||
| Clogheen | 4 | Tipperary | Waterford | |
| Clogher | 2 | Monaghan | Tyrone | |
| Clonakilty | 5 | Cork | ||
| Clones | 3 | Fermanagh | Monaghan | |
| Clonmel | 4 | Tipperary | Waterford | |
| Coleraine | 1 | Antrim | Derry | |
| Cookstown | 1 | Tyrone | ||
| Cootehill | 3 | Cavan | Monaghan | |
| Cork | 5 | Cork | ||
| Corrofin | 4 | Clare | ||
| Croom | 5 | Limerick | ||
| Dingle | 5 | Kerry | ||
| Donaghmore | 3 | Leix | ||
| Donegal | 2 | Donegal | ||
| Downpatrick | 1 | Down | ||
| Drogheda | 2 | Louth | Meath | |
| Dromore West | 4 | Sligo | ||
| Dublin, North | 2 | Dublin | ||
| Dublin, South | 2 | Dublin | ||
| Dundalk | 2 | Armagh | Louth | Monaghan |
| Dunfanaghy | 2 | Donegal | ||
| Dungannon | 1 | Tyrone | ||
| Dungarvan | 4 | Waterford | ||
| Dunmanway | 5 | Cork | ||
| Dunshaughlin | 2 | Dublin | Meath | |
| Edenderry | 3 | Kildare | Meath | Offaly |
| Ennis | 4 | Clare | ||
| Enniscorthy | 4 | Carlow | Wexford | |
| Enniskillen | 2 | Cavan | Fermanagh | Tyrone |
| Ennistimon | 4 | Clare | ||
| Fermoy | 4 | Cork | ||
| Galway | 4 | Galway | ||
| Glennamaddy | 4 | Galway | Roscommon | |
| Glenties | 2 | Donegal | ||
| Glin | 5 | Kerry | Limerick | |
| Gorey | 2 | Wexford | ||
| Gort | 4 | Clare | Galway | |
| Gortin | 2 | Tyrone | ||
| Granard | 3 | Cavan | Longford | Westmeath |
| Inishowen | 2 | Donegal | ||
| Kanturk | 5 | Cork | ||
| Kells | 2 | Cavan | Meath | |
| Kenmare | 5 | Kerry | ||
| Kilkeel | 1 | Down | ||
| Kilkenny | 3 | Kilkenny | ||
| Killadysert | 4 | Clare | ||
| Killala | 4 | Mayo | ||
| Killarney | 5 | Kerry | ||
| Kilmacthomas | 4 | Waterford | ||
| Kilmallock | 5 | Cork | Limerick | |
| Kilrush | 4 | Clare | ||
| Kinsale | 5 | Cork | ||
| Larne | 1 | Antrim | ||
| Letterkenny | 2 | Donegal | ||
| Limerick | 5 | Clare | Limerick | |
| Lisburn | 1 | Antrim | Down | |
| Lismore | 4 | Cork | Waterford | |
| Lisnaskea | 3 | Fermanagh | ||
| Listowel | 5 | Kerry | ||
| Londonderry | 2 | Donegal | Derry | |
| Longford | 3 | Longford | ||
| Loughrea | 4 | Galway | ||
| Lowtherstown | 2 | Fermanagh | Tyrone | |
| Lurgan | 1 | Antrim | Armagh | Down |
| Macroom | 5 | Cork | ||
| Magherafelt | 1 | Derry | ||
| Mallow | 5 | Cork | ||
| Manorhamilton | 2 | Leitrim | ||
| Middleton | 4 | Cork | ||
| Millford | 2 | Donegal | ||
| Millstreet | 5 | Cork | ||
| Mitchelstown | 4 | Cork | Limerick | |
| Mohill | 3 | Leitrim | ||
| Monaghan | 3 | Monaghan | ||
| Mountbellew | 4 | Galway | ||
| Mountmellick | 3 | Leix | Offaly | |
| Mullingar | 3 | Westmeath | ||
| Naas | 2 | Dublin | Kildare | Wicklow |
| Navan | 2 | Meath | ||
| Nenagh | 3 | Tipperary | ||
| New Ross | 4 | Carlow | Kilkenny | Wexford |
| Newcastle | 5 | Limerick | ||
| Newport | 4 | Mayo | ||
| Newry | 1 | Armagh | Down | |
| Newtownards | 1 | Down | ||
| Newtown-Limavady | 1 | Derry | ||
| Oldcastle | 3 | Cavan | Meath | |
| Omagh | 2 | Tyrone | ||
| Oughterard | 4 | Galway | ||
| Parsonstown | 3 | Offaly | Tipperary | |
| Portumna | 4 | Galway | ||
| Rathdown | 2 | Dublin | Wicklow | |
| Rathdrum | 2 | Wicklow | ||
| Rathkeale | 5 | Limerick | ||
| Roscommon | 3 | Galway | Roscommon | |
| Roscrea | 3 | Leix | Offaly | Tipperary |
| Scarriff | 4 | Clare | ||
| Shillelagh | 2 | Carlow | Wexford | Wicklow |
| Skibbereen | 5 | Cork | ||
| Skull | 5 | Cork | ||
| Sligo | 2 | Sligo | ||
| Strabane | 2 | Donegal | Tyrone | |
| Stranorlar | 2 | Donegal | ||
| Strokestown | 3 | Roscommon | ||
| Swineford | 4 | Mayo | Roscommon | |
| Thomastown | 4 | Kilkenny | ||
| Thurles | 3 | Tipperary | ||
| Tipperary | 3 | Limerick | Tipperary | |
| Tobercurry | 4 | Sligo | ||
| Tralee | 5 | Kerry | ||
| Trim | 2 | Meath | ||
| Tuam | 4 | Galway | ||
| Tulla | 4 | Clare | ||
| Tullamore | 3 | Offaly | Westmeath | |
| Urlingford | 3 | Kilkenny | Tipperary | |
| Waterford | 4 | Kilkenny | Waterford | |
| Westport | 4 | Mayo | ||
| Wexford | 4 | Wexford | ||
| Youghal | 4 | Cork | Waterford |
Volume*:indicates what volume the district was found prior to 1922
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