The combined sales tax rate in Hydro, Oklahoma is
10.5% on general merchandise, and
6% on groceries.
Hydro extends into more than one county
(Caddo, Blaine). The city rate is the same in each,
but the county portion differs, so the combined rate depends on which county the sale occurs in.
This page shows the Caddo County portion.
Rate breakdown
Portion
General
Groceries
Oklahoma state
4.5%
0%
Hydro (city)
4.5%
4.5%
Caddo County
1.5%
1.5%
Combined
10.5%
6%
Combined rate = 4.5% Oklahoma
state rate + municipal rate + county rate. The state rate has been 4.5% since
May 1, 1990. Food and food ingredients are exempt from the state rate effective
August 29, 2024 (HB 1955); local city and county sales taxes still apply. Prepared food,
restaurant meals, alcohol, and dietary supplements remain taxable at the full rate.