What is the sales tax in Hammon city? - The sales tax in Hammon city of Oklahoma is 9% as of 2025. Use the Hammon sales tax calculator to calculate the sales tax for any purchase in Hammon.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Hammon.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Roger Mills | Oklahoma | Hammon | 73650 | 4.5% | 3% | 1.5% | 9% |