Santa Rosa is 20% more expensive than Pomona.
When comparing Santa Rosa, CA and Pomona, CA, the overall cost of living indices are 172 and 143 respectively (national median = 100). Rent is $346/month cheaper in Pomona, saving renters about $4,152/year.
Median household income is $18,541/year higher in Santa Rosa. Home values also differ significantly — the median in Santa Rosa is $685,000 compared to $569,600 in Pomona.
Both cities share the same state tax structure since they are in California.
Santa Rosa vs Pomona — common questions
Other cost of living comparisons for Santa Rosa and Pomona