Rosales leads early in San Luis mayoral primary race

Early voting results showed Matías Rosales ahead in San Luis’s mayoral primary as the border city kept counting ballots for a race that will also decide three City Council seats. The city’s 2026 primary and general election process runs through the San Luis city clerk, and the winner will help steer city services, growth pressures and the daily traffic that comes with the San Luis Port of Entry.

Rosales is listed by both Ballotpedia and BallotReady as a candidate for San Luis City Mayor in the 2026 Arizona Primary Election. His name has been part of the city’s political conversation for months, adding to a contest that has drawn attention well beyond a single office because the mayoral race is paired with three council seats on the same primary ballot.

San Luis has seen its mayoral counting unfold in stages before. In 2022, Riedel widened his lead in the city’s mayoral race while the council contest moved to November, a reminder that municipal results in San Luis can shift as ballots are processed and different offices settle on different timelines. That history gives this year’s early lead extra weight for a city where one round of counting does not always settle every race at once.

The broader 2024 cycle also showed how active San Luis voters were around local politics. In August 2024, local Democrats in San Luis said they were excited to vote for candidates up and down the ballot, and the city’s council field included Esteban Rosales, 25, in the San Luis City Council race. Those contests reflected a community where turnout, local organizing and ballot order have repeatedly shaped how municipal power is distributed.

Rosales’ early advantage gives him a first look at the mayor’s office, but the primary still has to sort out the full city ticket. In San Luis, where the mayor and council must manage growth, services and cross-border commerce in a border city, the final tally will decide who enters the next round of city hall politics with momentum.