About County Mayo
County Mayo is a city located in Ireland, in the Connacht region. According to the latest available data (2026), the population of County Mayo is approximately 130,638 residents, making it the #16 most populous city in Ireland.
Globally, County Mayo ranks #12,606 among the world's most populated cities.
County Mayo City Statistics
| City | County Mayo |
| Country |  Ireland |
| Population | 130,638 |
| Global Rank | #12,606 |
| Rank in Ireland | #16 of 18 cities |
| City Category | city |
| Region | Connacht |
| Latitude | 53.9 |
| Longitude | -9.25 |
| Data Year | 2026 |
Where is County Mayo Located?
County Mayo is located in Ireland, in the Connacht region, at coordinates 53.9° latitude and -9.25° longitude. Located in the mid-latitudes, County Mayo experiences distinct four-season weather patterns.
Nearby Cities
Other Cities in Ireland
Largest Cities in Ireland
| # | City | Population |
|---|---|---|
| 1 | Dublin | 592,713 |
| 11 | County Cork | 542,196 |
| 12 | Dublin City | 506,211 |
| 2 | Fingal | 296,214 |
| 13 | South Dublin | 278,749 |
Frequently Asked Questions
What is the population of County Mayo?
The population of County Mayo is approximately 130,638 residents according to the latest available data (2026).
Where is County Mayo located?
County Mayo is located in Ireland at approximately 53.9° latitude and -9.25° longitude.
Is County Mayo one of the largest cities in Ireland?
With a population of 130,638, County Mayo is one of the notable urban areas in Ireland. It ranks #16 out of 18 cities in the country.
