Virginia mammals

Black Rat in Virginia

Rattus rattus

Introduced to Virginia

Virginia's Rattus rattus records are of an introduced species; it does not occur here as a wild native population.

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.

Black Rat in Virginia, by the numbers

Occasional in Virginia 59th most recorded of 105 mammals logged in Virginia

35 occurrence records
24 with iNaturalist photos
Jun 3, 2026 Last seen in Virginia

Records from 2000–2026.

When to look for the Black Rat in Virginia

Most sightings fall in July to August.

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

Monthly Virginia records (table)
MonthRecords
January1
February1
March1
April4
May4
June1
July7
August8
September1
October4
November0
December3

Monthly black rat occurrence records (iNaturalist and GBIF) in Virginia, 2000–2026.

Seasonality

Year-round in Virginia, with recorded sightings peaking in July–August.

Occurrence map

Where Black Rat has been recorded in Virginia

35 records mapped · zoom and drag to explore

35 Virginia records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
George Washington National Forest 1

Protected places with the most black rat 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 Virginia

CountyRecords
Norfolk County 5
Highland County 5
Virginia Beach County 5
Warren County 5
Chesapeake County 3
Clarke County 3
Albemarle County 2
Hampton County 2
Newport News County 2
Page County 1
Washington County 1
Madison County 1

The complete county distribution, spread across 12 Virginia counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Black rats aren’t native anywhere in Virginia. NatureServe flags the species as exotic here, which fits its real history as a stowaway on sailing ships centuries ago rather than any original part of the state’s wildlife. Records are thin, just 24 iNaturalist observations against a slightly larger 28 from GBIF, a split that leans toward the kind of trapping and specimen survey work used to track a pest species rather than casual photographs.

Chincoteague and Back Bay national wildlife refuges and the Chesapeake Bay shoreline show up most in the location data, tracking the coastal marshes, old harbor edges, and dockside buildings this rat has favored since it first came ashore. Reports run year-round with the clearest pulses in April and August, though with so few records total that’s a soft signal rather than a firm seasonal pattern.

Occurrence data from iNaturalist and GBIF.

More mammals in Virginia 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"