Fontenelle
- County:
- Lincoln County
- County Seat:
- No
- Area (mi²):
- 3.477
- State:
- Wyoming
Fontenelle is a CDP located in Lincoln County, Wyoming. Fontenelle has a 2025 population of 46 . Fontenelle is currently growing at a rate of 6.98% annually and its population has increased by 31.43% since the most recent census, which recorded a population of 35 in 2020.
The median age in Fontenelle is 62.4 years: 0 years for males, and 0 years for females. For every 100 females there are 800.0 males.