Rents in Co Mayo rose by just over 9% in the year to December 2017, according to the latest report from property website Daft.ie
Nationally, rents rose by over 10% last year, while in Mayo, rents were on average 9.1% higher in the final three months of 2017 than a year previously.
The average advertised monthly rent in Mayo is now 647 euro.
In Galway city, rents rose by over 12% last year to an average of 1,096 euro.
Dublin saw an increase of almost 11% in rent prices, which now average 1,822 euro per month.
Author of the report, economist Ronan Lyons, says the underlying pressure for rising rents remains due to a chronic shortage of available rental accommodation, at a time of strong demand.