An election to Offaly County Council took place on 5 June 2009 as part of that year's Irish local elections. 21 councillors were elected from four local electoral areas (LEAs) for a five-year term of office on the electoral system of proportional representation by means of the single transferable vote (PR-STV).

Results by party PartySeats±First Pref. votesFPv%±% 9+1 6- 6+1 0-2Totals21-100.0—

Results by local electoral area

Birr

Edenderry

Ferbane

Tullamore

External links Official website