
Lafontaine
- County:
- Elk County
- County Seat:
- No
- Area (mi²):
- 1.996
- State:
- Kansas
Lafontaine is a CDP located in Elk County, Kansas. Lafontaine has a 2025 population of 35. Lafontaine is currently growing at a rate of 6.06% annually but its population has decreased by -27.08% since the most recent census, which recorded a population of 48 in 2020.
The average household income in Lafontaine is $56,291 with a poverty rate of 0%. The median age in Lafontaine is 54.1 years: 0 years for males, and 52 years for females.