| Library | Address | Tel | |
| Achill | Achill Sound Co. Mayo |
098 20910 | pbriody@mayococo.ie |
| Ballina | Killala Road Ballina Co. Mayo |
096 70833 | bvarley@mayococo.ie |
| Ballinrobe | Main Street Ballinrobe Co. Mayo |
094 9541896 | mfarragher@mayococo.ie |
| Ballyhaunis | Clare Street Ballyhaunis Co. Mayo |
094 9630161 | efreyne@mayococo.ie |
| Belmullet | Civic Centre Belmullet Co. Mayo |
097 82555 | khealy@mayococo.ie |
| Castlebar | John Moore Road Castlebar Co. Mayo |
094 9047925 | plmccart@mayococo.ie |
| Charlestown | Dublin Road Charlestown Co. Mayo |
094 9255934 | ngannon@mayococo.ie |
| Clare Island | Clare Island Co. Mayo |
098 26525 | cliaracdp@eircom.ie |
| Claremorris | Dalton Street Claremorris Co. Mayo |
094 9371666 | tmurtagh@mayococo.ie |
| Crossmolina | Ballina Street Crossmolina Co. Mayo |
096 31939 | mgallagh@mayococo.ie |
| Foxford | Main Street Foxford Co. Mayo |
094 9256040 | kjoyce@mayococo.ie |
| Inisturk |
Community Centre Inisturk Co. Mayo |
098 45778 | |
| Kilkelly | Kilkelly Co. Mayo |
094 9367758 | dpower@mayococo.ie |
| Kiltimagh | Aiden Street Kiltimagh Co. Mayo |
094 9381786 | bwimsey@mayococo.ie |
| Louisburgh | Main Street Louisburgh Co. Mayo |
098 66658 | mkeane@mayococo.ie |
| Swinford | Bridge Street Swinford Co. Mayo |
094 9252065 | aobrien@mayococo.ie |
| Westport | The Crescent Westport Co. Mayo |
098 25747 | westportlibrary@mayococo.ie |