Nebraska mammals

Muskrat in Nebraska

Ondatra zibethicus

Native to Nebraska S5 Secure in Nebraska

Not listed as nonindigenous in Nebraska by USGS NAS; native to its Nebraska 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.

Muskrat in Nebraska, by the numbers

Common in Nebraska 15th most recorded of 95 mammals logged in Nebraska

289 occurrence records
230 with iNaturalist photos
Jul 4, 2026 Last seen in Nebraska

Records from 2000–2026.

289 total records count every Nebraska occurrence from GBIF and iNaturalist; the monthly chart covers the 278 records with a full observation date.

When to look for the Muskrat in Nebraska

Most sightings fall in April to May.

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

Monthly Nebraska records (table)
MonthRecords
January10
February10
March30
April39
May55
June28
July19
August14
September10
October21
November15
December27

Monthly muskrat occurrence records (iNaturalist and GBIF) in Nebraska, 2000–2026.

Seasonality

Year-round in Nebraska, with recorded sightings peaking in April–May.

Occurrence map

Where Muskrat has been recorded in Nebraska

289 records mapped · zoom and drag to explore

289 Nebraska records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Eugene T. Mahoney State Park 2
Homestead National Historical Park 2
Buffalo Bill's Ranch State Historical Park 1
Killdeer Wildlife Management Area 1
Burchard Wildlife Management Area 1
Schramm Park State Recreation Area 1
Dead Timber State Recreation Area 1
Nebraska National Forest 1

Protected places with the most muskrat 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 Nebraska

CountyRecords
Sarpy County 68
Lancaster County 56
Douglas County 36
Dundy County 13
Garden County 10
Buffalo County 9
Nance County 9
Sheridan County 9
Cass County 8
Colfax County 8
Cherry County 8
Saunders County 5
27 other counties 50

The complete county distribution, spread across 39 Nebraska counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Muskrats live in Nebraska’s marshes, slow river channels, farm ponds, and vegetated lake margins. Cattails and other emergent plants provide both food and lodge material, while steep banks can hold burrow entrances hidden just below the waterline.

Where to look

Quiet wetlands along the Platte and Missouri systems are more useful than fast main channels. Scan at dawn or dusk for a small brown swimmer leaving a narrow V-shaped wake, and check reed beds for low vegetation lodges or clipped plant stems.

Muskrats are present year-round. Sightings peak from March through May, when open water returns and spring movement makes them easier to detect.

Occurrence data from iNaturalist and GBIF.

Muskrat in other states

More mammals in Nebraska 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"