1999 Mayo County Council election

An election to Mayo County Council took place on 10 June 1999 as part of that year's Irish local elections. 31 councillors were elected from seven local electoral areas for a five-year term of office on the system of proportional representation by means of the single transferable vote (PR-STV).

Results by party PartySeats±First Pref. votesFPv%±% 16+126,11946.18 13-23,41441.39 1-1,0211.81 1-14,8148.51Totals31-56,564100.00—

Results by local electoral area