Island Park, ID

View of Island Park, ID
Image credit: James N Perdue / Public domain
Population
190
U.S. Census Population Estimates Program · 2025
Elevation
6,295 ft
Median Home Value
$293,800
U.S. Census American Community Survey 5-Year · 2024
Median Income
$91,250
U.S. Census American Community Survey 5-Year · 2024

Explore

Island Park in context.

About Island Park

Island Park is a city in Fremont County, Idaho, United States. The 2020 census counted 193 residents. The city was incorporated by owners of the many lodges and resorts along U.S. Route 20 in 1947, primarily to circumvent Idaho's liquor laws that prohibited the sale of liquor outside of city limits. Island Park is only 500 feet wide in most locations and at 33 miles, claims to have the longest "Main Street" in the world. Harriman State Park - A 11,700-acre refuge with various natural sceneries. Sawtell's Ranch Marker - In remembrance of the Sawtell's Ranch. Taken together, these details give a newcomer a usable picture of Island Park, where its history, geography, and current gathering places meet.

IP Place Names

For Island Park, the memorable detail is the way older history and current gathering places share one local map. Island Park is part of the Rexburg Micropolitan Statistical Area. Some sources suggest that during their escape from general Howard, the legendary chiefs known as Joseph Perce and Nez Perce spent time in the nearby Henry's lake for a brief period of time in the year 1877. In addition to the portion which lies on the Henry's Fork Caldera, about a third of what is known as Island Park is north of the caldera, extending across Henry's Lake Flat and Henry's Lake towards the Idaho/Montana border.

Top Rating Signals

Highest current ratings for this town.

Loading town details...