Alligator mississippiensis
Alligator mississippiensis
(American alligator)
Reptiles-Crocodilians
Native Transplant
Collection Info
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14 results for Alligator mississippiensis (American alligator)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1633409 CACalaverasOff of Calaveritas Road near San Andreas, CA.2019 18040011 Upper Calaveras Californiafailed
1548399 ILCookHumboldt Park, Chicago, IL2019 07120003 Chicagofailed
1613655 MILivingstonSide of the road in Oceola Township, MI.2019 04080203 Shiawasseefailed
1617621 MIMonroeBiology Pond at Temperance Junior High School.2019 04100001 Ottawa-Stonyfailed
1541618 NCDavidsonHigh Rock Lake, in a cove in Abbotts Creek off Warf Road2019 03040103 Lower Yadkinfailed
1613747 NCUnionVintage Creek subdivision of Weddington, NC.2019 03050103 Lower Catawbafailed
1613632 NYRichmondPonded rainwater in the woods near Cranford Ave., Staten Island, New York, NY.2019 02030104 Sandy Hook-Staten Islandfailed
1613625 NYSuffolkSwimming pool at private residence, Bayport, Long Island, NY.2019 02030202 Southern Long Islandfailed
1617865 PAAlleghenyAllegheny River, off of 57th St.2019 05010009 Lower Alleghenyfailed
1547060 PAAlleghenyCarrick neighbourhood, 300 block of East Agnew Ave.2019 05020005 Lower Monongahelafailed
1547059 PAAlleghenyMonongahela River at Southside Riverfront Park2019 05020005 Lower Monongahelafailed
1547058 PAAlleghenyNear Sebring and Rutherford2019 05030101 Upper Ohiofailed
1592661 PAAlleghenyParking lot of Giant Eagle, Shaler Township, PA.2019 05010009 Lower Alleghenyfailed
1548403 PABlairA creek near Tipton, Antis Township, PA2019 02050302 Upper Juniatafailed

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/22/2026].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.