The primary election is Tuesday and ballots are due by 8 p.m.
The primary narrows the race to two candidates who then go on to face each other in the general election in November.
In Benton County, there are contested races for the Kennewick, Benton City and West Richland city councils, as well as the Richland School Board and in the Kennewick Public Hospital District.
Voters in west Pasco and rural Franklin County get a say in a special election to fill the unexpired seat of former state Rep. Susan Fagan, a Republican from Pullman who resigned over allegations she falsified travel expense reports.
And in Pasco, three city council races have multiple candidates.
Check www.tricityherald.com for election updates after 8 p.m.