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Burmese python (Python bivittatus)

The Burmese python is a non-venomous snake in the family Pythonidae, but a large constrictor that can inflict serious bites and constriction injuries. GBIF holds 8,143 licensed U.S. records of it; it reaches our listing threshold in 1 state, most of all Florida (8,141). It is not native to the U.S.; it is introduced in Florida. Its observation records peak in July.

Burmese python (Python bivittatus)
Photo: Everglades NPS from Homestead, Florida, United States, Public domain, via Wikimedia Commons
1state on record
8,143licensed U.S. records
Julpeak month, observations
Novenomous to people

The Burmese python (Python bivittatus) is one of the largest species of snakes. It is native to a large area of Southeast Asia and is listed as Vulnerable on the IUCN Red List. Until 2009, it was considered a subspecies of the Indian python, but is now recognized as a distinct species.

From Wikipedia: Burmese python, text under CC BY-SA 4.0.

Bitten? Call 911 for a venomous snakebite or any bite with trouble breathing. For advice on any bite or sting, call Poison Help at 1-800-222-1222 (free, 24/7, U.S.-wide). Do not cut the wound, suck out venom or use a tourniquet. General information, not medical advice. Do not handle or try to identify a snake or spider by this page; if unsure, treat it as venomous.

Is the Burmese python poisonous or venomous?

Not venomous, but not harmless either. The Burmese python is a large constrictor (family Pythonidae): it has no venom, yet its bite can leave deep, torn wounds, and a large one can coil around and squeeze a person or a pet. Keep your distance and never handle one; after any bite, wash the wound and get medical care, and call 911 if a snake is wrapped around someone.

Which states have the Burmese python?

All listed records come from a single state, Florida, with 8,141 records.

#StateRecordsShare of state snakesRank in state
1Florida8,14139.1%1st of 49
Source: GBIF, read 2026-09-29. A state is listed once GBIF holds at least 10 records of the species there under any license; Records counts only CC0 and CC BY records, so a listed state can show fewer.

When is the Burmese python seen?

Across the U.S., observation records of the Burmese python run mostly May through January, peaking in July with 14% of them. Winter (December to February) holds 28% of them.

January: 7 observation records (12%)Jan12%February: 2 observation records (4%)FebMarch: 0 observation records (0%)MarApril: 3 observation records (5%)AprMay: 4 observation records (7%)May7%June: 4 observation records (7%)Jun7%July: 8 observation records (14%)Jul14%August: 5 observation records (9%)Aug9%September: 6 observation records (11%)Sep11%October: 6 observation records (11%)Oct11%November: 5 observation records (9%)Nov9%December: 7 observation records (12%)Dec12%

How recent are the Burmese python records?

Most of what is known about the Burmese python is recent: 77% of dated U.S. records were made in 2017–2026, and half date from 2019 or later. The oldest dated record is from 1979; the busiest year was 2020, with 1,366 records.

DecadeRecordsShare
1970s10.0%
1990s60.1%
2000s7619.3%
2010s3,57643.5%
2020s3,88047.2%
Source: GBIF licensed U.S. records with a year, read 2026-09-29.

Species recorded in the same counties

Of the 15 counties where the Burmese python is most recorded, 9 are also top counties for each of the first three snakes in the table below; no other snake shares more. None of its closest neighbors is venomous.

SpeciesShared counties
DeKay's brown snake9
Ring-necked snake9
Southern watersnake9
Eastern kingsnake8
Eastern racer8
Eastern ribbonsnake8
Florida brown snake8
Florida green water snake8
Source: GBIF licensed records, top counties per species and state, read 2026-09-29.

GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.

About these numbers

A species is listed for a state once GBIF holds at least 10 records of it located inside the state by coordinates, under any license. Every count, share, month and county shown is computed only from records published under CC0 or CC BY, so a listed species can show few or no counted records. Monthly patterns show when people record snakes, which also reflects when people are outdoors. Venomous status follows taxonomy: pit vipers and coral snakes; widow and recluse spiders; the Arizona bark scorpion. Records filed under older names count for the species they belong to today. Full methodology.