What is the sales tax in zip code 73437? - The sales tax in zip code 73437 in Graham, Oklahoma is 5.375% as of 2025. Use the 73437 sales tax rate calculator to calculate the sales tax for any purchase in 73437.
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Below is a list of the state sales tax, city sales tax, and county tax rate for .
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Carter | Oklahoma | Graham | 73437 | 4.5% | 0% | 0.875% | 5.375% |