North Carolina mammals

North American River Otter in North Carolina

Lontra canadensis

Native to North Carolina S4 Apparently Secure in North Carolina

Not listed as nonindigenous in North Carolina by USGS NAS; native to its North Carolina range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

North American River Otter in North Carolina, by the numbers

Common in North Carolina 13th most recorded of 125 mammals logged in North Carolina

1,153 occurrence records
852 with iNaturalist photos

Records from 2000–2026.

1,153 total records count every North Carolina occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 1,118 records with a full observation date.

When to look for the North American River Otter in North Carolina

Most sightings fall in February.

1,118 North Carolina occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly North Carolina records (table)
MonthRecords
January168
February282
March73
April92
May69
June61
July41
August28
September47
October54
November74
December129

Monthly north american river otter occurrence records (iNaturalist and GBIF) in North Carolina, 2000–2026.

Seasonality

Year-round in North Carolina, with recorded sightings peaking in February.

Occurrence map

Where North American River Otter has been recorded in North Carolina

300 records mapped · zoom and drag to explore

283 North Carolina records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
North Carolina Museum of Art 20
Lower Haw River State Natural Area 13
Nags Head Woods 8
Nantahala National Forest 8
Blue Ridge Parkway 4
Great Smoky Mountains National Park 4
Croatan National Forest 3
Goose Creek State Park 3

Protected places with the most north american river otter sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in North Carolina

CountyRecords
Dare County 153
Wake County 86
Chatham County 81
Hyde County 38
Currituck County 35
Alamance County 34
Washington County 30
Durham County 29
Beaufort County 26
Carteret County 25
Orange County 25
Pender County 23
79 other counties 568

The complete county distribution, spread across 91 North Carolina counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

North Carolina’s 1,153 river otter records follow the water, and the water that draws the most is coastal. Dare County leads the state, with Hyde, Currituck, Beaufort, and Carteret close behind, matching the marshes and sounds around Cape Hatteras National Seashore, Alligator River National Wildlife Refuge, and the Great Dismal Swamp. A second thread of records runs inland through Wake and Chatham counties and into the mountain streams of Nantahala and Pisgah national forests.

An aquatic hunter that travels

Otters make their living on fish, crayfish, frogs, and other aquatic prey, hunting by touch and sight underwater and hauling out on banks, logs, and root tangles. They den in old bank burrows and natural hollows, and they travel readily along waterways and across the land between them, so a single otter may work miles of creek. Mud slides, tracks, and latrine sites often announce an otter that keeps itself out of view.

Most visible in winter

Reports peak from December through February. Otters stay active all year, since they do not hibernate and North Carolina’s waters rarely freeze, but winter pairs traveling together and bare, muddy banks make animals and their sign easier to find. Counts dip through the warm months, when thick vegetation hides the shorelines they use.

Status in North Carolina

NatureServe ranks the North American river otter S4, Apparently Secure, in North Carolina. The species is native to the state, USGS NAS does not list it as nonindigenous, and after mid-twentieth-century declines otters have reclaimed waterways from the mountains to the sounds.

Occurrence data from iNaturalist and GBIF.

North American River Otter in other states

View all states →

More mammals in North Carolina in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"