Utah mammals

Southwestern Jumping Mouse in Utah

Zapus princeps

Native to Utah SNR Unranked in Utah

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

Southwestern Jumping Mouse in Utah, by the numbers

Common in Utah 27th most recorded of 141 mammals logged in Utah

795 occurrence records

Records from 2000–2026.

795 total records count every Utah occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 788 records with a full observation date.

When to look for the Southwestern Jumping Mouse in Utah

Most sightings fall in July to August.

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

Monthly Utah records (table)
MonthRecords
January6
February0
March0
April4
May66
June110
July304
August251
September38
October3
November1
December5

Monthly southwestern jumping mouse occurrence records (iNaturalist and GBIF) in Utah, 2000–2026.

Seasonality

Year-round in Utah, with recorded sightings peaking in July–August.

Occurrence map

Where Southwestern Jumping Mouse has been recorded in Utah

300 records mapped · zoom and drag to explore

300 Utah records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
High Uintas Wilderness 10
Wasatch National Forest 10
Uinta National Forest 7
Timpanogos Cave National Monument 5
State Trust Lands North La Sal Block 5
Cache National Forest 3
State Trust Lands Beaver Mountain Block 2
Cedar Breaks National Monument 1

Protected places with the most southwestern jumping 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 Utah

CountyRecords
Summit County 116
Box Elder County 98
Sanpete County 84
Salt Lake County 83
Utah County 65
Sevier County 48
Daggett County 38
Beaver County 38
Wasatch County 37
Duchesne County 35
Emery County 29
Uintah County 19
14 other counties 105

The complete county distribution, spread across 26 Utah counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Southwestern jumping mouse reports follow Utah’s mountain forests rather than its dry basins. Uinta-Wasatch-Cache, Dixie, and Fishlake national forests mark separated pockets of cool, sheltered habitat across the north, center, and south of the state.

The record pattern rises sharply in July and August, with far fewer reports outside late spring and summer. That narrow window also matches easier travel and fieldwork in high country. It doesn’t show that mice vanish from suitable sites during quieter months.

Occurrence data from GBIF.

More mammals in Utah 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"