Rhode Island mammals

House Mouse in Rhode Island

Mus musculus

Introduced to Rhode Island

Rhode Island's Mus musculus 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.

House Mouse in Rhode Island, by the numbers

Occasional in Rhode Island 39th most recorded of 72 mammals logged in Rhode Island

15 occurrence records
14 with iNaturalist photos
Sep 9, 2025 Last seen in Rhode Island

Records from 2000–2026.

When to look for the House Mouse in Rhode Island

Most sightings fall in April.

15 Rhode Island occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Rhode Island records (table)
MonthRecords
January1
February1
March1
April2
May1
June1
July2
August2
September2
October2
November0
December0

Monthly house mouse occurrence records (iNaturalist and GBIF) in Rhode Island, 2000–2026.

Seasonality

Year-round in Rhode Island, with recorded sightings peaking in April, with a smaller rise in July–October.

Occurrence map

Where House Mouse has been recorded in Rhode Island

15 records mapped · zoom and drag to explore

14 Rhode Island records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Lincoln Woods State Park 1

Protected places with the most house mouse 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 Rhode Island

CountyRecords
Providence County 11
Washington County 2
Other localities 2

The complete county distribution, spread across 2 Rhode Island counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

House mice are introduced commensal rodents that thrive around buildings, barns, and food storage rather than the parks and river corridors listed here. NatureServe marks Rhode Island’s population SNA, not applicable, because introduced species don’t receive a state conservation rank. The 15 records logged likely trace back to sightings near human structures rather than any real habitat preference for the sites above.

Sightings spread thin and steady from January through October with nothing recorded in November or December, unusual for a species that breeds indoors year-round regardless of season; the gap likely reflects reduced outdoor activity or reporting near these sites rather than a true seasonal absence. Nearly twice as many records come from iNaturalist (14) as GBIF (8), suggesting most are casual photos rather than trapping or survey data.

Occurrence data from iNaturalist and GBIF.

House Mouse in other states

More mammals in Rhode Island in the atlas

Data & sources

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