That two depends on the Medicine Tech Level. At level one they will typically live in the mid to late 50’s. Level 2 around the mid to late 60’s. Level 3 typically in the mid to late 70’s, but not uncommon to go into the 80’s and 90’s. The oldest I have ever had was 102. I’ve seen a few other peeps have a villager reach 102 as well, and one person reported 103.

Of course your mileage may vary. ;0