County Mayo Population (2026)
Population of County Mayo with area, density and how it compares to nearby places.
Population of County Mayo
County Mayo ranks #13 by population among 26 comparable places in this atlas.
Quick facts about County Mayo
Population by city in County Mayo
1 cities mapped in this atlas
Summary
County Mayo is a county in Ireland. County Mayo is a county in Ireland. It has a population of about 138.000.
Right now it is 49°F (10°C) in County Mayo with partly cloudy. It feels like 35°F. Today runs from 43°F to 51°F. Chance of precipitation is 82%. Sightseeing conditions score 5.5/10 - fair - plan around the weather.
The best time to visit County Mayo is July. The climate is temperate. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 65°F, while January is the coldest with lows near 37°F.
The closest major airport is Dublin Airport (DUB), about 127 mi away. Nearby highlights include Snowdonia National Park.
In plain terms. Today is slightly cooler than average for October. The forecast high of 51°F is 5.6°F below the 56°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in County Mayo today at 7.4/10. Gusts to 51 mph will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Map of County Mayo
Interactive map with nearby places. Switch between street, terrain and satellite views.
Coordinates: 53°48′2.9″N 9°18′0″W (53.8008, -9.3)
Explore County Mayo
Every topic we hold for this place, and the same topic for the places around it.
Population for related places
Frequently asked questions
Where is County Mayo?
County Mayo is a county in Ireland. Its coordinates are 53.8008, -9.3. It lies in Europe.
What is the weather like in County Mayo right now?
It is currently 49°F (10°C) with partly cloudy. Humidity is 57% and wind is 27 mph.
When is the best time to visit County Mayo?
July offer the most comfortable conditions in County Mayo, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Mayo in?
County Mayo observes Europe/Dublin (UTC+00:00). The local time is 1:53 PM.
How many people live in County Mayo?
County Mayo has a population of approximately 138.000.
What is the nearest airport to County Mayo?
The closest airports are Dublin Airport (DUB), 127 mi away.
What are the top things to do in County Mayo?
Popular options include Snowdonia National Park.
What places are in County Mayo?
County Mayo covers 1 places in this atlas, including Westport.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (ie-counties) - coordinates, hierarchy and facts. |
|---|---|
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 25, 2026 at 1:53 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
