New York mammals

North American Porcupine in New York

Erethizon dorsatus

Native to New York

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

North American Porcupine in New York, by the numbers

Common in New York 17th most recorded of 102 mammals logged in New York

1,612 occurrence records
1,128 with iNaturalist photos
Jul 11, 2026 Last seen in New York

Records from 2000–2026.

1,612 total records count every New York occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 1,594 records with a full observation date.

When to look for the North American Porcupine in New York

Most sightings fall in April to June.

1,594 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
January46
February73
March108
April239
May270
June181
July156
August107
September149
October130
November83
December52

Monthly north american porcupine occurrence records (iNaturalist and GBIF) in New York, 2000–2026.

Seasonality

Year-round in New York, with recorded sightings peaking in April–June.

Occurrence map

Where North American Porcupine has been recorded in New York

300 records mapped · zoom and drag to explore

300 New York records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Minnewaska State Park 62
John Boyd Thacher State Park 14
Upper And Lower Lakes Wildlife Management Area 8
Letchworth State Park 6
Five Rivers Education Center 5
Connecticut Hill Wildlife Management Area 5
Upper Delaware Scenic and Recreational River 4
Grafton Lakes State Park 4

Protected places with the most north american porcupine 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 626
St. Lawrence County 111
Jefferson County 82
Albany County 64
Cattaraugus County 53
Rensselaer County 44
Sullivan County 42
Broome County 41
Saratoga County 39
Chautauqua County 34
Greene County 31
Tompkins County 29
38 other counties 416

The complete county distribution, spread across 50 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 1,612 North American porcupine records spread from the Shawangunk ridge at Minnewaska State Park, the largest single cluster in the state record, north through the Adirondacks and the Tug Hill Plateau. Ulster County alone accounts for 626 of them, with St. Lawrence and Jefferson counties carrying the northern end of the range.

A winter animal that eats trees

Porcupines do not hibernate. Through New York’s long winters they feed on the inner bark of hemlock and other trees, often working a single favored feeding tree near the den, and records hold in every month of the year. April and May run strongest, when the animals shift to fresh buds and leaves, but clipped twigs and broad incisor marks under a hemlock can reveal one in any season.

Slow, well-armored, and fond of salt

A porcupine’s defense is its coat of loosely attached quills, and it relies on that armor rather than speed, climbing deliberately and sheltering in rock ledges, hollow logs, and root masses. The record’s two top parks, Minnewaska and John Boyd Thacher, are both known for exposed cliff and ledge, classic denning cover. Porcupines also crave salt and will gnaw tool handles, plywood, and anything else that carries a trace of sweat.

Status in New York

The porcupine is native to its New York range, and USGS NAS does not list it as nonindigenous in the state. It is not specifically listed under New York’s state-level conservation framework, and the IUCN ranks the species Least Concern globally.

Occurrence data from iNaturalist and GBIF.

North American Porcupine in other states

View all states →

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
  • 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"