Incumbents of the Onondaga County Legislature largely kept their seats in the 2021 election.
District 1: Brian May (R) won with 66% of the vote over Justin Neal (D) with 33%.
District 2: James Rowley (R) won 62% of the vote over Jay Snyder (D) with 38%.
District 3: Timothy Burtis (R) won 59% of the vote over Matthew Johnson with 36.5%.
District 4: Colleen Gunnip (R) won 59% of the vote over Stephon Williams with 41%.
District 5: Debra Cody (R) won with 59% of the vote while Jana Rogers (D) won 41%.
District 6: Julie R. Abbott-Kenan (R) won with 58.5% of the vote while Diane Dwire (D) got 41%.
District 7: Mary Kuhn (D) won with 55% of the vote while Joseph Carni (R) took 44.5%.
District 8: With no competition, Christopher Ryan (D) maintains his seat.
District 9: Peggy Chase (D) won 56% of the vote over Stephen Skinner (R) with 44%.
District 10: Mark Olson (R) won 52% of the vote over Heather Allison Waters (D) with 48%.
District 11: John McBride (R) won 57% of the vote over Ryan Suser (D) with 43%.
District 12: David Knapp (R) won 60% over Sunny Aslam (D) with 40%.
District 13: Kenneth Bush, Jr. (R) won 71% of the vote and Sara Aaserud (D) won 29%.
District 14: Cody Kelly (R) won 64.5% of the vote over Shanelle Benson Reid (D) who won 34.5%.
District 15: Bill Kinne (D) won 58% of the vote over Kevin Ryan (R) who won 38%.
District 16: Charles Garland (D) won 66% of the vote over Vernon Williams, Jr. (I) who won 34%.
District 17: Democrat Linda Ervin will keep her seat.
Republicans will maintain control of the Onondaga County legislature, as there are now 11 Republicans and 6 Democrats seated.