Based on 847 research-grade iNaturalist observations in Iowa, Eastern Chipmunk is most often recorded in May; in Iowa it behaves like a summer visitor / breeder. It ranks #4 among mammals recorded in the state in our data.
Tamias striatus
Eastern Chipmunk in Iowa by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Iowa in May
Eastern Cottontail
White-tailed Deer
Eastern Fox Squirrel
Common Raccoon
Eastern Gray Squirrel
Groundhog
Red Fox
Muskrat
Places to look in Iowa
Botanical GardenDubuque Arboretum and Botanical Gardens
Botanical GardenBickelhaupt Arboretum
Botanical GardenIowa Arboretum
State ParkPikes Peak State Park
State ParkCedar Rock State Park
State ParkWildcat Den State Park
FAQ
When does Eastern Chipmunk appear in Iowa?
Mainly April–October, with the most records in May.
How common is Eastern Chipmunk in Iowa?
It ranks #4 by number of iNaturalist observations among mammals in Iowa (847 records in our sample).