- Achill
- Achill Island
- Achill sound
- Addergoole
- Aghadoon
- Aghagower
- Aghamore-Mayo
- Aghleam
- An Greata Mor
- Ardkill
- Attymass
- Balla
- Ballina-Mayo
- Ballindine
- Ballinglen
- Ballinrobe
- Ballintober-Mayo
- Balloor
- Ballycarra
- Ballycastle
- Ballycroy
- Ballyfarnagh
- Ballygarries
- Ballyglass
- Ballyhaunis
- Ballyhean
- Ballyhenry
- Bangor
- Bangor erris
- Barnacahoge
- Barnalyra
- Barnatra
- Barnycarroll
- Bekan
- Belderg
- Bellacorick
- Bellagarvaun
- Bellavary
- Belmullet
- Beltra-Mayo
- Bohola
- Bolinglanna
- Brackwanshagh
- Brickeens
- Bunacurry
- Bunnyconnellan
- Burren-Mayo
- Callow-Mayo
- Carracastle
- Carraholly
- Carrowkeel-Mayo
- Carrowmore-Mayo
- Castlebar
- Castlehill
- Charlestown
- Churchfield
- Claggan
- Clare Island
- Claremorris
- Cloghane-Mayo
- Cloghboley
- Clogher-Mayo
- Cloonfallagh
- Cloonfinish
- Cloonkeen-Mayo
- Cloonlee
- Cloontia
- Cong-Mayo
- Corclogh
- Corcullin
- Cordarragh
- Corlee
- Cornanagh
- Corvoley
- Cregganbaun
- Croaghrimbeg
- Crockets Town
- Crossboyne
- Crossmolina
- Cuilkillew
- Derreen-Mayo
- Derrymartin
- Dooagh
- Doocastle
- Dooega
- Dooghbeg
- Doogort
- Doohooma
- Dooyork
- Finny
- Formoyle-Mayo
- Fox-Hill
- Foxford
- Garrycloonagh
- Glassillaun
- Glenagort
- Glenamoy
- Glenedagh
- Glenlara
- Gortleatilla
- Gortmore-Mayo
- Gortnahurra
- Gweesalia
- Hollymount
- Irishtown
- Johnsfort
- Keel
- Keel-booagh
- Keenagh-Mayo
- Kilbride-Mayo
- Kilcon
- Kilkelly
- Killadoon
- Killala
- Killasser
- Killavally
- Killogeary
- Kilmaine
- Kilmore-Mayo
- Kilsallagh-Mayo
- Kiltamagh
- Kiltarsaghaun
- Kiltimagh
- Kilvine
- Knights Town
- Knock-Airport
- Knock-Mayo
- Knockanarra
- Knockmore
- Knocknageeha
- Knocknalina
- Knocknalower
- Largan-Mayo
- Levally-Mayo
- Liscarney
- Louisburgh
- Mace
- Mallaranny
- Mayo
- Midfield
- Moyrahan
- Mullafarry
- Mullagh-Mayo
- Mulrany
- Murrisk
- Neale
- Newport-Mayo
- Newtown-Cloghans
- Newtown-Mayo
- Partry
- Pontoon
- Portacloy
- Rake-Street
- Ratheenroe
- Rathgranagher
- Rathlackan
- Rathoma
- Rathroeen
- Roonah Quay
- Roosky-Mayo
- Ross-Port
- Roundfort
- Scardaun-Mayo
- Shrule-Mayo
- Slieverue
- Srah
- Sraheens
- Srahmore
- Swinford
- Tawnyinah
- Tobernadarry
- Tonlegee
- Toormakeady
- Tourmakeady
- Trean
- Tulrohaun
- Turlough-Mayo
- Urlaur
- Westport
- Westport-Quay