 
Legislative elections were held in Guam on Tuesday, November 6, 2018, along with the election for the Guam delegate to the U.S. House of Representatives. Before the election, the Democratic Party held nine of the fifteen seats in the Legislature while the Republican Party held six seats.
The election resulted in a gain of one seat for the Democrats and a loss of one seat for Republicans. Democrats also won the race for Guam's US House Delegate.
Primary election.
Primary elections in Guam were held on August 25, 2018. The first 15 candidates who win the highest votes for each party will move on to the general election.
Results.
Democratic primary results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align: right; margin-right: 0.5em" | Turnout
Eliminated candidates.
Five Democrats hopefuls were eliminated in the 2018 primaries:
Republican Party Primary.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align: right; margin-right: 0.5em" | Turnout
Eliminated candidates.
Four Republican hopefuls were eliminated in the 2018 primaries:
General election.
Results.
The members of the legislature are elected at-large with the first 15 winning candidates elected as the new members of the legislature. 
The Democratic Party picked up one seat from Republicans, leaving the composition for the next legislature at 10 Democrats and 5 Republicans. Democrat Michael F.Q. San Nicolas also won the race for Delegate.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align: right; margin-right: 0.5em" | Majority
! colspan="3" style="text-align: right; margin-right: 0.5em" | Turnout
Incoming Senators to the 35th Guam Legislature.
There were 15 senators elected on November 6, 2018, to serve in the 35th Guam Legislature and were inaugurated on January 7, 2019: