Kansas mammals

House Mouse in Kansas

Mus musculus

Introduced to Kansas

Kansas's Mus musculus records are of an introduced species; it does not occur here as a wild native population.

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.

House Mouse in Kansas, by the numbers

Occasional in Kansas 32nd most recorded of 93 mammals logged in Kansas

623 occurrence records
25 with iNaturalist photos
Jun 11, 2026 Last seen in Kansas

Records from 2000–2026.

623 total records count every Kansas occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 614 records with a full observation date.

When to look for the House Mouse in Kansas

Most sightings fall in July.

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

Monthly Kansas records (table)
MonthRecords
January21
February11
March21
April18
May26
June30
July104
August52
September97
October87
November76
December71

Monthly house mouse occurrence records (iNaturalist and GBIF) in Kansas, 2000–2026.

Seasonality

Year-round in Kansas, with recorded sightings peaking in July, with a smaller rise in September–December.

Occurrence map

Where House Mouse has been recorded in Kansas

300 records mapped · zoom and drag to explore

300 Kansas records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Kansas Ecological Reserves 5
Neosho Wildlife Area 4
Scott Wildlife Area 1
Slate Creek Wetlands 1
Atchison State Fishing Lake And Wildlife Area 1
Washington State Fishing Lake And Wildlife Area 1
Meade State Park 1
Tallgrass Prairie National Preserve 1

Protected places with the most house 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 Kansas

CountyRecords
Riley County 103
Ellis County 58
Douglas County 56
Rawlins County 37
Saline County 36
Finney County 24
Lyon County 20
Meade County 20
Sedgwick County 15
Greenwood County 12
Cowley County 11
Ottawa County 9
73 other counties 222

The complete county distribution, spread across 85 Kansas counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

House mice are introduced in Kansas and occur chiefly in buildings, grain facilities, farmsteads, and other human-modified settings. They are not a species to seek at refuges or preserves; most detections arise indoors or around structures, often through signs rather than direct observation.

The 25 iNaturalist records understate how familiar the species is because indoor pests are rarely documented as wildlife observations. Records can occur in any month, with the current dataset highest from July through September; the NatureServe SNA rank reflects nonnative status rather than conservation scarcity.

Occurrence data from iNaturalist and GBIF.

House Mouse in other states

More mammals in Kansas 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"