This title is not directly translatable. I have looked at a number of Google-located websites with texts in both Spanish and English, and the title remains unchanged in English. Here is a partial explanation for you: "he holds the position of presidente municipal (over the municipio, roughly equivalent to a U.S. county)" ( taken from: www.arts-history.mx/cuento/cluff5.html). The closest you could get, in US English, would be: halfway between a county commissioner and a county judge. Presidentes municipales govern municipios, which actually are more local than counties (more like townships in some US states): they authorize purchases, oversee local services, *and* perform mariages, etc. The one we had dealings with in the state of Tlazcala, because he held the purse strings to the municipal funds, was the person to see to obtain financing of public works projects.

I'd recommend you leave the title in Spanish, and add a parenthetical explanation: roughly equivalent to county commissioner/county judge.

For examples of the use of presidente municipal in English, see: