Total new car registrations for the month of April were up over 3% compared with April 2017.
New statistics from the Society of the Irish Motor Industry show 122 new cars were registered in Mayo last month, up slightly from 118 in April 2017.
However, new cars registered since the start of the year are down locally and nationally on the same period last year.
In Mayo, new car sales have fallen by almost 10% in the first four months of 2018, compared to the same period in 2017.
Nationally, new cars are down 4.6% on the same period last year.