Alligator mississippiensis
Alligator mississippiensis
(American alligator)
Native Transplant

17 results for Alligator mississippiensis (American alligator)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
253761 AZMaricopaMcCormick Ranch2007 15060106 Lower Saltfailed
271795 CAContra CostaOakley [non-specific location]2007 18040003 San Joaquin Deltafailed
271794 CASolanoSacramento River Delta, Sherman Island area (five miles north of hwy 160 bridge)2007 18020163 Lower Sacramentofailed
238700 GAFultonChattahoochee River2007 03130002 Middle Chattahoochee-Lake Hardingunknown
271803 KSShawneeLake Shawnee2007 10270102 Middle Kansasfailed
271806 MAWorcesterTurbesi Park, Blackstone2007 01090003 Blackstonefailed
271816 MOBooneSouth Farm Lake (just off U.S. 63 south of Columbia)2007 10300102 Lower Missouri-Moreaufailed
270249 NCIredellIredell county2007 03000000 South Atlantic-Gulf Regionfailed
271843 NYOrangeNewburgh [non-specific location]2007 02020008 Hudson-Wappingerfailed
271772 NYSuffolkWading River [non-specific location]2007 02030201 Northern Long Islandfailed
271773 OHCuyahogaBrooklyn, west 41st Street and Memphis Avenue2007 04110002 Cuyahogafailed
270248 OHSummitSummit Lake2007 05040001 Tuscarawasfailed
271846 PAAlleghenyYoughiogheny River, near Boston Bridge2007 05020006 Youghioghenyfailed
271847 PACumberlandNewton, near Doublin Gap Road2007 02050305 Lower Susquehanna-Swatarafailed
268113 PAMontgomeryPennypack Creek, in Bryn Athyn2007 02040202 Lower Delawarefailed
271853 VAFairfaxReston [non-specific location]2007 02070008 Middle Potomac-Catoctinfailed
268114 WIWashingtonMilwaukee River2007 04040003 Milwaukeefailed

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.


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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/28/2022].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.