Thursday, November 12, 2026
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73437 Sales Tax Rate

The sales tax rate for ZIP code 73437 in Graham, Carter County, OK is 5.375%: 4.5% state and 0.875% county tax. Rates effective August 2024.

Tax area 1: Unincorporated Carter County

State tax
4.5%
County tax (Carter)
0.875%
City tax
0%
Special district tax
0%
Combined rate
5.375%

Tax area 2: Graham area (special taxing district)

State tax
4.5%
County tax
0%
City tax
0%
Special district tax
0.875%
Combined rate
5.375%

Source: Oklahoma: Streamlined Sales Tax rate and boundary files (OKR2026Q4AUG17.zip), rates in effect October 1, 2026. Effective August 2024.