Iowa Sales Tax Rates: Washington County
Washington County, Iowa Sales Tax Rate 2026 Up to 7%
A county-wide sales tax rate of 1% is applicable to localities in Washington County, in addition to the 6% Iowa sales tax.
None of the cities or local governments within Washington County collect additional local sales taxes.Here's how Washington County's maximum sales tax rate of 7% compares to other counties around the United States:
- Higher maximum sales tax than any other Iowa counties
- Lower maximum sales tax than 56% of counties nationwide
Tax Rates By City in Washington County, Iowa
The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. Iowa has a 6% sales tax and Washington County collects an additional 1%, so the minimum sales tax rate in Washington County is 7% (not including any city or special district taxes). This table shows the total sales tax rates for all cities and towns in Washington County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Washington | 7% | Washington |
| Kalona | 7% | Kalona |
| Riverside | 7% | Riverside |
| Wellman | 7% | Wellman |
| Keota | 7% | Keokuk |
| Ainsworth | 7% | Ainsworth |
| Crawfordsville | 7% | Crawfordsville |
| West Chester | 7% | West Chester |
Iowa Sales Tax Rates by Zip Code:
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Washington County, Iowa has a maximum sales tax rate of 7% and an approximate population of 19,928.
Sales tax rates in Washington County are determined by eight different tax jurisdictions, Ainsworth, Crawfordsville, Kalona, Keokuk, Riverside, Washington, Wellman and West Chester.
Back to Iowa Sales Tax Handbook Sales tax rates for Washington County are current as of June 2026
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