Colorado mammals

Red Fox in Colorado

Vulpes vulpes

Native to Colorado S5 Secure in Colorado

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

Red Fox in Colorado, by the numbers

Common in Colorado 14th most recorded of 154 mammals logged in Colorado

2,591 occurrence records
2,453 with iNaturalist photos
Jul 7, 2026 Last seen in Colorado

Records from 2000–2026.

2,591 total records count every Colorado occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 2,584 records with a full observation date.

When to look for the Red Fox in Colorado

Most sightings fall in April to July.

2,584 Colorado occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Colorado records (table)
MonthRecords
January129
February80
March132
April263
May355
June438
July359
August226
September158
October176
November143
December125

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

Seasonality

Year-round in Colorado, with recorded sightings peaking in April–July.

Occurrence map

Where Red Fox has been recorded in Colorado

300 records mapped · zoom and drag to explore

300 Colorado records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
White River National Forest 189
Rocky Mountain National Park 55
Roosevelt National Forest 39
Pike National Forest 28
San Juan National Forest 12
Uncompahgre National Forest 11
Steamboat Lake 11
Maroon Bells-Snowmass Wilderness 11

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 Colorado

CountyRecords
Boulder County 322
Jefferson County 270
Summit County 241
Gunnison County 206
Larimer County 161
Grand County 129
Pitkin County 102
Arapahoe County 91
Denver County 90
El Paso County 75
Routt County 74
Douglas County 72
41 other counties 758

The complete county distribution, spread across 53 Colorado counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

The red fox is a common and adaptable member of the dog family across Colorado. Open occurrence databases hold 2,591 records for it here, 2,453 of them iNaturalist photos, spread from the Front Range cities up into the high mountains.

Where red foxes turn up in Colorado

The red fox does its best work along edges, where short cover meets open ground and rodents are easy to hear and pin. In Colorado that plays out in two very different worlds. The Boulder, Jefferson, and Denver-area records track foxes living a suburban life, working lawns, greenbelts, golf courses, and rail corridors where coyotes travel less. Records from Summit, Gunnison, and Grand counties follow snowy meadows, willow bottoms, and forest edge climbing toward treeline. Same animal, same hunting problem, two landscapes.

The seasonal rhythm

Red foxes do not hibernate, so their year-round presence is real rather than an artifact of when people are looking. Reports still climb through late spring and early summer for a simple reason: kits emerge from the den, families grow more visible and more vocal, and warm-weather observers are afield in numbers. The fox is just as present in January, only quieter and harder to pick out against snow, though the sharp winter scream tends to give it away.

Status in Colorado

The red fox is native to Colorado and secure here, ranked S5 by NatureServe and Least Concern by the IUCN. Its main pressure is not people but coyotes, which dominate open country and nudge foxes toward the residential edges and broken cover where they end up most often photographed.

Red Fox in other states

View all states →

More mammals in Colorado 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"