Pennsylvania mammals

Red Fox in Pennsylvania

Vulpes vulpes

Introduced to Pennsylvania

NatureServe flags this species as exotic (non-native) in Pennsylvania.

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.

Red Fox in Pennsylvania, by the numbers

Common in Pennsylvania 7th most recorded of 77 mammals logged in Pennsylvania

3,479 occurrence records
3,466 with iNaturalist photos

Records from 2000–2026.

3,479 total records count every Pennsylvania occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 3,470 records with a full observation date.

When to look for the Red Fox in Pennsylvania

Most sightings fall in April to June.

3,470 Pennsylvania occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Pennsylvania records (table)
MonthRecords
January283
February187
March217
April529
May621
June470
July227
August155
September170
October211
November191
December209

Monthly red fox occurrence records (iNaturalist and GBIF) in Pennsylvania, 2000–2026.

Seasonality

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

Occurrence map

Where Red Fox has been recorded in Pennsylvania

300 records mapped · zoom and drag to explore

300 Pennsylvania records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Tyler State Park 24
Gettysburg National Military Park 17
Valley Forge National Historical Park 13
French Creek State Park 11
Fort Washington State Park 10
Ridley Creek State Park 7
Delaware Canal State Park 7
Moraine State Park 5

Protected places with the most red fox 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 Pennsylvania

CountyRecords
Bucks County 741
Montgomery County 597
Chester County 354
Philadelphia County 274
Delaware County 218
Clarion County 164
Monroe County 117
Allegheny County 89
Carbon County 69
Lehigh County 57
Northampton County 56
Adams County 48
52 other counties 695

The complete county distribution, spread across 64 Pennsylvania counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Pennsylvania’s red fox carries an immigrant history. The state’s 3,479 records, led by Bucks, Montgomery, and Chester counties, descend in large part from European foxes brought over and released for foxhunting in the colonial era, stock that mingled with native foxes spreading down from the north and went on to colonize the whole state.

A generalist at the field’s edge

Red foxes do best where woods give way to open hunting ground, and southeastern Pennsylvania’s quilt of farms, hedgerows, and suburbs suits them perfectly. They take mice and voles in meadows, rabbits along fencerows, and fruit, insects, and carrion as the seasons allow. Dens go into embankments, under sheds, or into remodeled woodchuck burrows, and the records from Gettysburg National Military Park, Valley Forge, and Tyler State Park all sit in that same mixed country.

Spring is den season

Records climb from April through June, when vixens are nursing litters and the young begin playing at the den mouth in daylight. Both parents feed the kits, and by midsummer the family splits its time between the den and short hunting forays, putting more foxes in view than at any other time of year.

Status in Pennsylvania

NatureServe treats the red fox as non-native in Pennsylvania and assigns it SNA, a rank not applicable to exotic populations. Whatever its ancestry, the fox is fully naturalized and self-sustaining here, and the IUCN lists the species as Least Concern globally.

Occurrence data from iNaturalist and GBIF.

Red Fox in other states

View all states →

More mammals in Pennsylvania in the atlas

Data & sources

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