I have not had a problem with mosquitoes and insects where I live in San Miguel de Allende. You will find mosquitoes anywhere but it is not a problem here in San Miguel. San Miguel is 6,200 feet above sea level but we still have some mosquitoes. Houses here have screens on the windows to prevent insects from coming in but you don’t really have to worry about getting bitten by mosquitoes if you go outside.
I have a home where I spend several months out of the year in Northern California, which is known for having very few bugs. In comparison, San Miguel has slightly more bugs and insects but it is not really a huge problem.
(The hilltop city of San Miguel de Allende, Mexico, pictured.)