Delta
- County:
- Delta County
- County Seat:
- Yes
- Area (mi²):
- 13.274
- State:
- Colorado
Delta is a city located in Delta County, Colorado. Delta has a 2026 population of 9,688. It is also the county seat of Delta County. Delta is currently growing at a rate of 0.78% annually and its population has increased by 6.88% since the most recent census, which recorded a population of 9,064 in 2020.