Polk County sales tax rate, Iowa
Quick answer
Combined sales tax in Polk County runs 7% across the cities we cover, on top of Iowa's 6% state rate. The county share is a separate line from any city or special-district increment, which is why two addresses in the same county can pay different totals.
Cities in Polk County
County share shown separately from the city and district layers.
| City | State | County | City + districts | Combined |
|---|---|---|---|---|
| Des Moines | 6% | 0% | 1% | 7% |
Source: Iowa Department of Revenue · rates as published for 2026