| Library | Address | Tel | |
| Achill | Achill Sound Co. Mayo |
098 20910 | charman@mayococo.ie |
| Ballina | Killala Road Ballina Co. Mayo |
096 22180 | ballinalib@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 | American Street Belmullet Co. Mayo |
097 82374 | blavelle@mayococo.ie |
| Castlebar | Pavilion Road Castlebar Co. Mayo |
094 904755 | ihamrock@mayococo.ie |
| Charlestown | Dublin Road Charlestown Co. Mayo |
094 9255934 | ngannon@mayococo.ie |
| Clare Island | Clare Island Co. Mayo |
098 29838 | cliara@anu.ie |
| Claremorris | Dalton Street Claremorris Co. Mayo |
094 9371666 | claremorrislib@mayococo.ie |
| Crossmolina | Ballina Street Crossmolina Co. Mayo |
096 31939 | mgallagh@mayococo.ie |
| Foxford | Main Street Foxford Co. Mayo |
094 9256040 | kjoyce@mayococo.ie |
| Kilkelly | Kilkelly Co. Mayo |
094 9367785 | ngannon@mayococo.ie |
| Kiltimagh | Main Street Kiltimagh Co. Mayo |
094 938178 | bwimsey@mayococo.ie |
| Louisburgh | Main Street Louisburgh Co. Mayo |
098 66658 | mkeane@mayococo.ie |
| Swinford | Bridge Street Swinford Co. Mayo |
094 925206 | aobrien@mayococo.ie |
| Westport | The Crescent Westport Co. Mayo |
098 25747 | westportlib@mayococo.ie |