The state has spent €152,000 deporting just one illegal immigrant to Ghana.
But the actual cost of the deportation is likely to be even higher, because the sum does not include garda overtime or subsistence payments, which have not been disclosed.
The Ghanaian deportation cost was 26 times the average cost of deporting an illegal from Ireland last year, which stood at €5,758, according to new figures. In total, 161 deportation orders were executed last year.
Details of the highest cost of a single deportation case to date this year have also been released. A man was transported to Georgia on March 27 last at a cost of €35,888.