The 2025 Lehigh County Executive election were held on November 4, 2025. Incumbent County Executive Phillips Armstrong was term-limited and could not seek a third consecutive term. State Representative Joshua Siegel won the Democratic primary to succeed him unopposed. In the Republican primary, former Allentown City Councilman and Police Chief Roger MacLean narrowly defeated former Allentown School Board Director Mike Welsh, 52âÂÂ48 percent. Siegel defeated MacLean by a wide margin in the general election.