Eircodes in County Mayo
County Mayo is on the west coast in Connacht, with a long Atlantic coastline and Achill Island off its shore. Its county town is Castlebar.
We hold 8,455 Eircodes in County Mayo with an address, drawn from 8 routing keys.
Eircode routing keys in County Mayo
Every Eircode begins with a three-character routing key. These are the routing keys the County Mayo codes we hold come from, with the number of addresses in each. A routing key that straddles a county border appears under both counties.
- F262,177
- F121,843
- F231,772
- F281,699
- F35464
- F31431
- F4552
- F5617