Skip to content
OpenPhenologybeta
Nearby · Delaware Co.
MammalsIn Delaware County, Ohio

Eastern Chipmunk

Tamias (Tamias) striatus (Linnaeus, 1758)

Eastern Chipmunk in all of Ohio
Eastern Chipmunk (Tamias (Tamias) striatus)
(c) Christian Grenier, some rights reserved (CC BY-NC), uploaded by Christian Grenier · CC BY-NC 4.0 (opens in a new tab) · iNaturalist (opens in a new tab)
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Sciuridae
Genus
Tamias
Near Delaware County

Range

Where it is recorded

Season shown in 1 of Ohio's 88 counties. Its mapped range covers 88. Explore Ohio

  • No result yet (0)
  • Within its mapped range (17)
  • Recorded, too few records for a result (50)
  • Recorded, season not shown (20)
  • Season shown (1)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Range: USGS Gap Analysis Project, Species Range Maps CONUS_2001 (2018). Show as a table
Counties as a table
Eastern Chipmunk by Ohio county: records and mapped range
CountyRecordsIn mapped range
Adams CountyRecorded, too few records for a resultYes: year-round
Allen CountyRecorded, too few records for a resultYes: year-round
Ashland CountyRecorded, too few records for a resultYes: year-round
Ashtabula CountyRecorded, too few records for a resultYes: year-round
Athens County37 · Recorded, season not shownYes: year-round
Auglaize CountyRecorded, too few records for a resultYes: year-round
Belmont CountyNo qualifying records yetYes: year-round
Brown CountyRecorded, too few records for a resultYes: year-round
Butler County44 · Recorded, season not shownYes: year-round
Carroll CountyRecorded, too few records for a resultYes: year-round
Champaign CountyRecorded, too few records for a resultYes: year-round
Clark CountyRecorded, too few records for a resultYes: year-round
Clermont County38 · Recorded, season not shownYes: year-round
Clinton CountyNo qualifying records yetYes: year-round
Columbiana CountyRecorded, too few records for a resultYes: year-round
Coshocton CountyRecorded, too few records for a resultYes: year-round
Crawford CountyRecorded, too few records for a resultYes: year-round
Cuyahoga County377 · Recorded, season not shownYes: year-round
Darke CountyRecorded, too few records for a resultYes: year-round
Defiance CountyRecorded, too few records for a resultYes: year-round
Delaware County58 · Recorded, season not shownYes: year-round
Erie County85 · Recorded, season not shownYes: year-round
Fairfield CountyRecorded, too few records for a resultYes: year-round
Fayette CountyNo qualifying records yetYes: year-round
Franklin County194 · Recorded, season not shownYes: year-round
Fulton CountyRecorded, too few records for a resultYes: year-round
Gallia CountyNo qualifying records yetYes: year-round
Geauga County23 · Recorded, season not shownYes: year-round
Greene County27 · Recorded, season not shownYes: year-round
Guernsey CountyRecorded, too few records for a resultYes: year-round
Hamilton County127 · Recorded, season not shownYes: year-round
Hancock CountyRecorded, too few records for a resultYes: year-round
Hardin CountyNo qualifying records yetYes: year-round
Harrison CountyRecorded, too few records for a resultYes: year-round
Henry CountyNo qualifying records yetYes: year-round
Highland CountyNo qualifying records yetYes: year-round
Hocking CountyRecorded, too few records for a resultYes: year-round
Holmes CountyRecorded, too few records for a resultYes: year-round
Huron CountyRecorded, too few records for a resultYes: year-round
Jackson CountyNo qualifying records yetYes: year-round
Jefferson CountyRecorded, too few records for a resultYes: year-round
Knox CountyRecorded, too few records for a resultYes: year-round
Lake County54 · Recorded, season not shownYes: year-round
Lawrence CountyRecorded, too few records for a resultYes: year-round
Licking County30 · Recorded, season not shownYes: year-round
Logan CountyRecorded, too few records for a resultYes: year-round
Lorain County53 · Recorded, season not shownYes: year-round
Lucas County93 · Season shownYes: year-round
Madison CountyRecorded, too few records for a resultYes: year-round
Mahoning County24 · Recorded, season not shownYes: year-round
Marion CountyRecorded, too few records for a resultYes: year-round
Medina County23 · Recorded, season not shownYes: year-round
Meigs CountyNo qualifying records yetYes: year-round
Mercer CountyRecorded, too few records for a resultYes: year-round
Miami CountyRecorded, too few records for a resultYes: year-round
Monroe CountyNo qualifying records yetYes: year-round
Montgomery County33 · Recorded, season not shownYes: year-round
Morgan CountyRecorded, too few records for a resultYes: year-round
Morrow CountyRecorded, too few records for a resultYes: year-round
Muskingum CountyRecorded, too few records for a resultYes: year-round
Noble CountyNo qualifying records yetYes: year-round
Ottawa CountyRecorded, too few records for a resultYes: year-round
Paulding CountyRecorded, too few records for a resultYes: year-round
Perry CountyRecorded, too few records for a resultYes: year-round
Pickaway CountyNo qualifying records yetYes: year-round
Pike CountyRecorded, too few records for a resultYes: year-round
Portage County75 · Recorded, season not shownYes: year-round
Preble CountyNo qualifying records yetYes: year-round
Putnam CountyNo qualifying records yetYes: year-round
Richland CountyRecorded, too few records for a resultYes: year-round
Ross CountyRecorded, too few records for a resultYes: year-round
Sandusky CountyNo qualifying records yetYes: year-round
Scioto CountyRecorded, too few records for a resultYes: year-round
Seneca CountyRecorded, too few records for a resultYes: year-round
Shelby CountyNo qualifying records yetYes: year-round
Stark County97 · Recorded, season not shownYes: year-round
Summit County444 · Recorded, season not shownYes: year-round
Trumbull CountyRecorded, too few records for a resultYes: year-round
Tuscarawas CountyRecorded, too few records for a resultYes: year-round
Union CountyRecorded, too few records for a resultYes: year-round
Van Wert CountyRecorded, too few records for a resultYes: year-round
Vinton CountyRecorded, too few records for a resultYes: year-round
Warren CountyRecorded, too few records for a resultYes: year-round
Washington CountyRecorded, too few records for a resultYes: year-round
Wayne County34 · Recorded, season not shownYes: year-round
Williams CountyNo qualifying records yetYes: year-round
Wood CountyRecorded, too few records for a resultYes: year-round
Wyandot CountyRecorded, too few records for a resultYes: year-round

Season

When it is recorded

In Delaware County

Not enough evidence

The weeks are still too uncertain to show a season. Based on 58 records in 9 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
Show over the bars
Recording in Delaware County · records of all species each week, 21,087 in all

Records per week from 58 records in 9 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.

Show as a table
Records of Eastern Chipmunk in Delaware County each week, and records of all species
WeekRecords of Eastern ChipmunkYears recordedRecords of all species
Jan 4–100075
Jan 11–170035
Jan 18–240037
Jan 25–310028
Feb 1–70033
Feb 8–140056
Feb 15–210038
Feb 22–280036
Mar 1–70073
Mar 8–1400118
Mar 15–2100111
Mar 22–2800120
Mar 29 – Apr 400208
Apr 5–1100304
Apr 12–1800810
Apr 19–2511622
Apr 26 – May 211561
May 3–922539
May 10–1611620
May 17–2300560
May 24–3043640
May 31 – Jun 643751
Jun 7–1343746
Jun 14–2033593
Jun 21–2722623
Jun 28 – Jul 422725
Jul 5–1100597
Jul 12–1821785
Jul 19–2511848
Jul 26 – Aug 100646
Aug 2–811665
Aug 9–1533612
Aug 16–2200684
Aug 23–2911775
Aug 30 – Sep 533782
Sep 6–12431,111
Sep 13–1911827
Sep 20–2600663
Sep 27 – Oct 321686
Oct 4–1021576
Oct 11–1752411
Oct 18–2453350
Oct 25–3121245
Nov 1–700181
Nov 8–1411112
Nov 15–2111101
Nov 22–280093
Nov 29 – Dec 50055
Dec 6–120039
Dec 13–190056
Dec 20–260039
Dec 27 – Jan 20086

In Ohio

Early March to early August, middle week late May, and again late August to mid-November, middle week late September

Recorded in two separate seasons, each shown with its own early, middle and late weeks.

Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all

Records per week from 3,276 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.

Show as a table
Records of Eastern Chipmunk in Ohio each week, and records of all species
WeekRecords of Eastern ChipmunkYears recordedRecords of all species
Jan 4–10006,211
Jan 11–17225,146
Jan 18–24434,645
Jan 25–31224,698
Feb 1–7636,023
Feb 8–141245,888
Feb 15–211265,436
Feb 22–282686,846
Mar 1–72488,321
Mar 8–1439810,384
Mar 15–2127712,620
Mar 22–2821913,949
Mar 29 – Apr 419819,661
Apr 5–1140726,860
Apr 12–18581039,925
Apr 19–25691041,623
Apr 26 – May 2162956,391
May 3–92031052,952
May 10–162081053,785
May 17–231881057,698
May 24–30174954,651
May 31 – Jun 61371053,099
Jun 7–13116953,700
Jun 14–20112956,625
Jun 21–271091055,361
Jun 28 – Jul 485858,477
Jul 5–11791061,336
Jul 12–18591064,722
Jul 19–2584969,753
Jul 26 – Aug 1571059,416
Aug 2–848959,712
Aug 9–1551955,994
Aug 16–2240954,328
Aug 23–2945951,772
Aug 30 – Sep 555957,167
Sep 6–1270959,075
Sep 13–19981054,543
Sep 20–261031045,860
Sep 27 – Oct 3142843,180
Oct 4–10109837,841
Oct 11–17106930,824
Oct 18–2478921,156
Oct 25–3165919,021
Nov 1–7381014,172
Nov 8–1428812,621
Nov 15–211667,965
Nov 22–281778,136
Nov 29 – Dec 51276,083
Dec 6–12746,004
Dec 13–19435,423
Dec 20–26425,661
Dec 27 – Jan 2658,459

What these results show

These results show when people recorded a species, not when or where it occurs. Missing weeks and low counts do not mean absence or scarcity, and counts are not abundance. Contributed records reflect where, when and what people chose to observe.

Identification

How to identify it

Often confused with

From iNaturalist’s similar-species counts, refreshed monthly: confusions in Ohio first, then worldwide. Only species with an Ohio result are listed.

Land cover where it is recorded

Land coverIts recordsAll Ohio records
Developed59%49%
Forest34%31%
Farmland3%11%
Wetland3%5%
Open water0.6%3%
Grassland and shrub0.4%0.9%
Barren0.1%0.6%

From 1,470 records placed within 100 m, beside all Ohio records placed the same way. People record where they go, so this shows where records come from, not where the species lives. Land cover: USGS Annual NLCD, 2025 (opens in a new tab)

Sources

Where these results come from

  • Records from iNaturalist research-grade observations and expert-identified GBIF datasets, CC0, CC BY and CC BY-NC. Sources
  • Seasons use the published method and its evidence thresholds. Methods
  • See it on iNaturalist (opens in a new tab)OpenPhenology is independent and not affiliated with iNaturalist.

Records behind the Ohio result

3,276 records from 2 datasets.

To cite: the GBIF download doi:10.15468/dl.y2jkt8 (opens in a new tab).

A spreadsheet (CSV) with a link to each record, on iNaturalist or GBIF. Records whose location was hidden by the observer or the source are counted but not linked.