Oklahoma records
Broad-banded Copperhead in Oklahoma
VenomousAgkistrodon laticinctus

Yes. The Broad-banded Copperhead has been recorded in 29 Oklahoma counties. It is venomous. Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
If you are bitten
Copperhead and cottonmouth bites are painful and need medical care but are rarely fatal with prompt treatment (cottonmouth venom is the more potent of the two). Stay calm, keep the limb still, remove tight items, and go to an emergency room. Do not use a tourniquet or cut the wound. Call Poison Control at 1-800-222-1222 or 911 in the US, or your local emergency number. (Source: CDC.)
Oklahoma counties with Broad-banded Copperhead records
29 listedSee the full Broad-banded Copperhead profile or all snakes in Oklahoma.