The Simple Answer
Covered California and Healthcare.gov are both ACA (Obamacare) health insurance marketplaces, but they're run by different entities:
Covered California
- State-run marketplace
- Only for California residents
- Additional state subsidies
- Better customer service
- More carrier options
Healthcare.gov
- Federal marketplace
- For 32 states without state exchanges
- Federal subsidies only
- Federal call center support
- Varies by state
Bottom line: California chose to run its own marketplace for better local control, additional funding, and enhanced benefits.