Indiana mammals

Thirteen-lined ground squirrel in Indiana

Ictidomys tridecemlineatus

Native to Indiana S4 Apparently Secure in Indiana

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

Thirteen-lined ground squirrel in Indiana, by the numbers

Common in Indiana 24th most recorded of 74 mammals logged in Indiana

73 occurrence records
73 with iNaturalist photos

Records from 2000–2026.

73 total records count every Indiana occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 70; the monthly chart covers the 70 records with a full observation date.

When to look for the Thirteen-lined ground squirrel in Indiana

Most sightings fall in April to August.

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

Monthly Indiana records (table)
MonthRecords
January0
February0
March5
April10
May14
June14
July9
August10
September8
October0
November0
December0

Monthly thirteen-lined ground squirrel occurrence records (iNaturalist and GBIF) in Indiana, 2000–2026.

Seasonality

Year-round in Indiana, with recorded sightings peaking in April–August.

Occurrence map

Where Thirteen-lined ground squirrel has been recorded in Indiana

70 records mapped · zoom and drag to explore

70 Indiana records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Prophetstown State Park 16
Kankakee Fish and Wildlife Area 1
Pine Creek Bottoms Gamebird Habitat Area 1

Protected places with the most thirteen-lined ground squirrel 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 Indiana

CountyRecords
Tippecanoe County 25
St. Joseph County 13
Elkhart County 4
LaGrange County 4
Warren County 3
LaPorte County 3
Jasper County 2
Marshall County 2
Montgomery County 2
Benton County 2
Delaware County 1
Starke County 1
8 other counties 11

The complete county distribution, spread across 20 Indiana counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Indiana thirteen-lined ground-squirrel records favor short grass and open, well-drained ground, from the restored prairie at Prophetstown State Park to mown roadsides, parks, and northern Indiana field margins. Tippecanoe County leads with 25, 16 of them from Prophetstown alone. Reports run from March through September, highest in May and June, and stop entirely from October through February, bracketing the active season before winter hibernation.

The 73 iNaturalist records represent encounters, not ground-squirrel abundance. Colonies beside trails or lawns are easy to revisit, while similar habitat on private land is underreported, so mapped clusters reflect access and repeated observation as much as distribution.

Occurrence data from iNaturalist and GBIF.

More mammals in Indiana 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"