Thornton is 18% cheaper than Downey.
When comparing Thornton, CO and Downey, CA, the overall cost of living indices are 138 and 169 respectively (national median = 100). Rent is $82/month cheaper in Thornton, saving renters about $984/year.
Median household income is $13,585/year higher in Thornton. Home values also differ significantly — the median in Thornton is $482,200 compared to $728,500 in Downey.
Colorado has a lower income tax rate, making Thornton slightly more tax-friendly.
Thornton vs Downey — common questions
Other cost of living comparisons for Thornton and Downey