Where is Ward 3?

Each of Salem’s eight wards encompasses about 22,000 residents. Ward 3 is Salem’s largest ward, broadly covering from Liberty Rd. in the west to Corban University in the east, and Kuebler Blvd. in the south to Highway 22 in the north.

Those are the broad boundaries, though Ward 3 is an odd shape. You can look up your ward on the City of Salem's website:
https://www.cityofsalem.net/government/city-council-mayor/about-city-council/find-a-ward-map

You can read about how the City Council selected these boundaries in an article by the Statesman Journal:
https://www.statesmanjournal.com/story/news/2021/11/24/salem-city-council-picks-new-ward-boundaries-more-west-salem-moved-ward-1-redistricting-growth/8749722002/