Diamond, IL Sales Tax Rate

Sales tax rates in Diamond, Illinois range from 6.25% to 7.25% depending on the exact location (county, ZIP code or special district). See each rate and calculate the tax on any purchase. Rates effective August 2026.

State tax

6.25%

County tax (Will)

0%

City tax (Diamond)

0%

Special district tax

1%

Combined rate

7.25%

Source: Illinois Department of Revenue, sales tax rate files incl. address addendum (effective Aug 1, 2026). Effective August 2026.