- Source: 2018 Durham Region municipal elections
Elections were held in the Regional Municipality of Durham in Ontario, on October 22, 2018 in conjunction with municipal elections across the province.
Durham Regional Council
Durham Regional Chair
The following are the preliminary results for the position of Durham Regional Chair.
Ajax
The following are the preliminary results for the Town of Ajax.
Following a ward boundary review, Ajax gained one regional councillor and lost one local councillor for the 2018 election. The overall size of the council remained the same.
= Mayor
== Regional Councillors
=Three Regional Councillors were elected in 1 of 3 wards.
= Local Councillors
=Three Local Councillors were elected in 1 of 3 wards.
Brock
The following are the preliminary results for the Township of Brock.
= Mayor
== Regional Councillor
=One Regional Councillor was elected.
= Local Councillors
=Five Local Councillors were elected in 1 of 5 wards.
Clarington
The following are the preliminary results for the Municipality of Clarington.
= Mayor
== Regional Councillors
=Two Regional Councillors were elected in 1 of 2 wards.
= Local Councillors
=Four Local Councillors were elected in 1 of 4 wards.
Oshawa
The following are the preliminary results for the City of Oshawa.
For the 2018 election, Oshawa re-adopted a ward based system. Voters in each ward elected one regional councillor and one city councillor.
= Mayor
== Regional & City Councillors
=Five Regional & City Councillors were elected in 1 of 5 wards.
= City Councillors
=Five City Councillors were elected in 1 of 5 wards.
Pickering
The following are the preliminary results for the City of Pickering.
= Mayor
== Regional Councillors
=Three Regional Councillors were elected in 1 of 3 wards.
= City Councillors
=Three City Councillors were elected in 1 of 3 wards.
Scugog
The following are the preliminary results for the Township of Scugog.
= Mayor
== Regional Councillor
=One Regional Councillor was elected.
= Local Councillors
=Five Local Councillors were elected in 1 of 5 wards.
Uxbridge
The following are the preliminary results for the Town of Uxbridge.
= Mayor
== Regional Councillor
=One Regional Councillor was elected.
= Local Councillors
=Five Local Councillors were elected in 1 of 5 wards.
Whitby
The following are the preliminary results for the Town of Whitby.
= Mayor
== Regional Councillors
=Four Regional Councillors were elected.
= Local Councillors
=Four Local Councillors were elected in 1 of 4 wards.