New York mammals

White-footed Mouse in New York

Peromyscus leucopus

Native to New York S5 Secure in New York

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

White-footed Mouse in New York, by the numbers

Common in New York 25th most recorded of 102 mammals logged in New York

2,894 occurrence records
293 with iNaturalist photos
Jun 26, 2026 Last seen in New York

Records from 2000–2026.

2,894 total records count every New York occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 2,798 records with a full observation date.

When to look for the White-footed Mouse in New York

Most sightings fall in July to October.

2,798 New York occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly New York records (table)
MonthRecords
January114
February69
March133
April153
May221
June250
July279
August312
September416
October421
November251
December179

Monthly white-footed mouse occurrence records (iNaturalist and GBIF) in New York, 2000–2026.

Seasonality

Year-round in New York, with recorded sightings peaking in July–October.

Occurrence map

Where White-footed Mouse has been recorded in New York

300 records mapped · zoom and drag to explore

297 New York records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Calder Ecology Center 40
Connecticut Hill Wildlife Management Area 30
Gateway National Recreation Area 29
Allegany State Park State Park 27
Long Island 26
Saratoga National Historical Park 21
Letchworth State Park 19
Hither Hills State Park 16

Protected places with the most white-footed 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 New York

CountyRecords
Ulster County 506
Tompkins County 364
Suffolk County 215
Orange County 195
Queens County 147
Rensselaer County 123
Westchester County 115
Cattaraugus County 97
Albany County 85
Oswego County 78
Schoharie County 75
Jefferson County 72
43 other counties 822

The complete county distribution, spread across 55 New York counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

New York’s occurrence record is the most frequently recorded of any small mammal on this list, with 2,894 white-footed mouse records concentrated on Long Island and reaching into the Catskills. That’s the record of a mouse able to use nearly any patch of brush or woodland edge the state has to offer, from suburban lots to mountain coves.

Stone walls, hedgerows, and oak edges

White-footed mice use hedgerows, brushy ravines, old stone walls, streamside thickets, and suburban woodlots almost interchangeably, wherever logs, leaf litter, and shrub cover sit close together. That flexibility maps neatly onto New York’s landscape: the Hudson Valley’s stone-wall farm edges, the Catskills’ forested coves, and Long Island’s oak-hickory woodlots and suburban lot lines all supply the same basic mix of cover and food, which is exactly why records for this mouse turn up across such different parts of the state.

The mouse behind the state’s Lyme disease cycle

Beyond its own natural history, the white-footed mouse carries real weight in New York’s disease ecology. The lower Hudson Valley and Long Island rank among the highest Lyme disease incidence areas in the country, and this mouse is the primary reservoir host from which blacklegged tick larvae first pick up the bacteria before they molt into the nymphs that go on to bite people the following spring. That’s disease ecology, not health guidance; the mouse is one link in a longer chain connecting ticks, deer, and the wider forest food web.

Status in New York

NatureServe ranks the white-footed mouse S5, secure, and it’s native across the state; USGS NAS doesn’t list it as an introduced species anywhere in New York.

Occurrence data from iNaturalist and GBIF.

More mammals in New York 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"