
Eldora
- County:
- Boulder County
- County Seat:
- No
- Area (mi²):
- 4.156
- State:
- Colorado
Eldora is a CDP located in Boulder County, Colorado. Eldora has a 2025 population of 441. Eldora is currently growing at a rate of 4.75% annually and its population has increased by 25.28% since the most recent census, which recorded a population of 352 in 2020.
The average household income in Eldora is $39,117 with a poverty rate of 56.36%. The median age in Eldora is 32.9 years: 32.5 years for males, and 67.5 years for females.