Gem is located in Thomas County. About 98 people live here (as of 2020). Between 2010 and 2020, the population grew from 88 to 98. The region is at 943 meters above sea level. The area covers about 0.9 square kilometers. There are about 16 streets in Gem. The postal codes are 67734. The dialing code is 785. Gem is city in Kansas, United States.
| Area | 0.9 km² |
| Elevation | 943 m |
| Located in | Thomas County |
| Postal code | 67734 |
| Country | United States |
| Population | 98 |
| Official name | Gem |
| Bike path |
| Bike lane on roadway |
| Cycling allowed on bus lane |
| Bicycle street |
| Open to cyclists |
| Open to cyclists, good path |
| Cycling prohibited |
| Cobblestone |
| Long-distance bike route | (depending on scale) |
| Long-distance bike route |
| Long-distance hiking trail | (depending on scale) |
| Long-distance hiking trail |
| Pedestrians prohibited |