Mississippi mammals

Black Rat in Mississippi

Rattus rattus

Introduced to Mississippi

Mississippi'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 Mississippi, by the numbers

Occasional in Mississippi 39th most recorded of 74 mammals logged in Mississippi

30 occurrence records
26 with iNaturalist photos
Apr 4, 2026 Last seen in Mississippi

Records from 2000–2026.

When to look for the Black Rat in Mississippi

Most sightings fall in October to January.

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

Monthly Mississippi records (table)
MonthRecords
January3
February1
March3
April3
May1
June3
July0
August2
September1
October5
November4
December4

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

Seasonality

Year-round in Mississippi, with recorded sightings peaking in October–January, with a smaller rise in March–April and June.

Occurrence map

Where Black Rat has been recorded in Mississippi

30 records mapped · zoom and drag to explore

30 Mississippi records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Pascagoula River Coastal Reserve 1
Gulf Islands National Seashore 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 Mississippi

CountyRecords
Jackson County 11
Harrison County 3
Oktibbeha County 2
Pike County 2
Lauderdale County 2
Leflore County 1
Pearl River County 1
Grenada County 1
Humphreys County 1
Rankin County 1
Forrest County 1
Amite County 1
2 other counties 3

The complete county distribution, spread across 14 Mississippi counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Black rats are an introduced commensal species in Mississippi, and NatureServe’s SNA rank, not applicable, reflects that introduced species don’t receive a state conservation status. The record leans toward iNaturalist (26 of 30 records), and Gulf Islands National Seashore anchors the coastal habitat where this species, historically a ship-borne colonizer of port towns and barrier islands, still turns up most often.

Records climb through the fall, October through December account for 13 of the 30 sightings, more than 40 percent of the total, a pattern that may track increased indoor and structure-adjacent activity as temperatures cool rather than any real population surge, since black rats breed year-round.

Occurrence data from iNaturalist and GBIF.

More mammals in Mississippi 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"