Voter participation increased substantially in Washtenaw County during the Aug. 4, 2026, midterm primary compared with the Aug. 2, 2022, midterm primary, even as the county reported considerably fewer registered voters. Washtenaw CountyWashtenaw County had 270,129 registered voters in 2026, down from 315,405 in 2022. County voters cast 117,920 ballots in the 2026 primary, compared with 87,526 four years earlier, a 34.7% increase. Voter registration, ballots cast and turnout in Washtenaw County and selected municipalities during the 2022 and 2026 midterm primaries. Chart by Doug MarrinCommunity HighlightsChelsea had the highest 2026 turnout among the communities shown, rising from 37.41% to 52.45%.