Oregon's 30th House district

District 30 of the Oregon House of Representatives is one of 60 House legislative districts in the state of Oregon. As of 2021, the district is located entirely within Washington County and includes Rockcreek, Helvetia, and West Union as well as eastern Hillsboro and the Hillsboro Airport. The current representative for the district is Democrat Nathan Sosa.

Election results
District boundaries have changed over time. Therefore, representatives before 2021 may not represent the same constituency as today. General election results from 2000 to present are as follows: