Florida
Snakes in Monroe County
32 species have been documented here, 5 of them venomous.
Venomous snakes in Monroe County
Full guide & what to do if bitten →
Florida CottonmouthAgkistrodon conantiVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Pygmy RattlesnakeSistrurus miliariusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Eastern Diamondback RattlesnakeCrotalus adamanteusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Eastern CoralsnakeMicrurus fulviusVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Monroe County

Burmese Python
Python bivittatus
Harmless

North American Racer
Coluber constrictor
Harmless

Red Cornsnake
Pantherophis guttatus
Harmless

Saltmarsh Snake
Nerodia clarkii
Harmless

Eastern Ratsnake
Pantherophis alleghaniensis
Harmless

Banded Watersnake
Nerodia fasciata
Harmless

Florida Cottonmouth
Agkistrodon conanti
Venomous

Common Ribbon Snake
Thamnophis saurita
Harmless

Scarletsnake
Cemophora coccinea
Harmless

Brown Watersnake
Nerodia taxispilota
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Brahminy Blindsnake
Indotyphlops braminus
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Pygmy Rattlesnake
Sistrurus miliarius
Venomous

Eastern Diamondback Rattlesnake
Crotalus adamanteus
Venomous

Eastern Kingsnake
Lampropeltis getula
Harmless

Florida Brownsnake
Storeria victa
Harmless

Florida Green Watersnake
Nerodia floridana
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Striped Swampsnake
Liodytes alleni
Harmless

Eastern Coralsnake
Micrurus fulvius
Venomous

Western Ratsnake
Pantherophis obsoletus
Harmless

Mudsnake
Farancia abacura
Harmless

Boa Constrictor
Boa constrictor
Harmless

Scarlet Kingsnake
Lampropeltis elapsoides
Harmless

Eastern Indigo Snake
Drymarchon couperi
Harmless

Ball Python
Python regius
Harmless

Common Watersnake
Nerodia sipedon
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Central American Boa
Boa imperator
Harmless

Striped Keelback
Xenochrophis vittatus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Monroe County: FAQ
- Are there venomous snakes in Monroe County, Florida?
- Yes. 5 venomous snake species have verified records in Monroe County, Florida, including Florida Cottonmouth, Pygmy Rattlesnake, Eastern Diamondback Rattlesnake, Northern Cottonmouth. Most snakes in Monroe County, Florida, however, are harmless.
- How many snake species live in Monroe County, Florida?
- 30+ snake species have verified records in Monroe County, Florida, of which 5 are venomous.
- What is the most commonly seen snake in Monroe County, Florida?
- The Burmese Python is the most frequently reported snake in Monroe County, Florida, based on verified wildlife observations.
- What should I do if I see a venomous snake in Monroe County, Florida?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.