San Jon
- County:
- Quay County
- County Seat:
- No
- Area (mi²):
- 2.928
- State:
- New Mexico
San Jon is a village located in Quay County, New Mexico. San Jon has a 2026 population of 185. San Jon is currently declining at a rate of -1.6% annually and its population has decreased by -3.14% since the most recent census, which recorded a population of 191 in 2020.