Eldora
- County:
- Hardin County
- County Seat:
- Yes
- Area (mi²):
- 4.281
- State:
- Iowa
Eldora is a city located in Hardin County, Iowa. Eldora has a 2026 population of 2,595. It is also the county seat of Hardin County. Eldora is currently declining at a rate of -0.27% annually and its population has decreased by -2.08% since the most recent census, which recorded a population of 2,650 in 2020.