Island Park ZIP Code List — Fremont County, ID

There is one unique ZIP code in Island Park, Idaho and it is 83429. Area code: 208.
1
ZIP codes
494.60
sq mi land
23.93
sq mi water
208
area code
Island Park, ID ZIP code map

About Island Park, ID

Island Park, Idaho, is a picturesque community located in the heart of Fremont County. Known for its stunning natural beauty and outdoor recreational opportunities, the city attracts visitors year-round. With a population that embraces a close-knit, adventurous spirit, Island Park is a haven for nature enthusiasts and families alike.

Location & geography

Island Park is situated in eastern Idaho, approximately 40 miles from Idaho Falls and about 20 miles from West Yellowstone, Montana. The area is characterized by its expansive landscapes, with a total land area of 494.60 square miles and a water area of 23.93 square miles, making it a preferred destination for outdoor activities. The terrain includes forests, lakes, and rivers, providing stunning views and varied ecosystems.

Community & economy

Island Park exudes a charming, rustic atmosphere with a strong sense of community among its residents. The local economy primarily revolves around tourism and outdoor recreation, with many businesses catering to visitors exploring the nearby parks and lakes. Daily life includes a mix of seasonal activities, from snowmobiling in winter to fishing and hiking in the summer.

Transportation

The region is accessible via U.S. Route 20, which connects residents and visitors to surrounding areas. The nearest major airport is the Idaho Falls Regional Airport, located about 40 miles away, offering commercial flights to various destinations. Local transportation options are limited, with most residents relying on personal vehicles for travel.

History

Island Park was established in the early 20th century, primarily influenced by the influx of visitors attracted to its natural beauty and proximity to Yellowstone National Park. Historically, the area's key industries have included tourism and recreation, significantly shaped by the construction of roads and lodges catering to tourists. The city has also hosted several notable events, celebrating its rich outdoor heritage.

Did you know?

One little-known fact about Island Park is that it is home to the largest non-contiguous national forest in the United States, the Caribou-Targhee National Forest. This forest provides a unique backdrop for outdoor adventures and wildlife observation, making it a hidden gem for nature lovers.

ZIP codes for Island Park, ID (1)
ZIP code City County Map
83429 Island Park Fremont View map

Demographics & statistics

643
Population
69.7
Median age
$88,750
Median household income
$49,614
Per capita income
$484,600
Median home value
$0
Median monthly rent
100.0%
Home ownership
4.2%
Poverty rate
3.0%
Unemployment
3,376
Housing units
46.3%
Bachelor's or higher

Age distribution

Male Female
0
Under 5
1
2
5–9
2
3
10–14
4
10
15–19
10
2
20–24
2
1
25–34
1
11
35–44
11
34
45–54
36
7
55–59
8
32
60–64
34
159
65–74
168
49
75–84
51
2
85+
3
← Male
Female →

Age summary

GroupCount%
Under 18274.2%
18 and over61695.8%
65 and over43267.2%
Median age69.7 years

Race & ethnicity

White 96.3%
Hispanic or Latino 1.8%
Other race 1.8%
GroupCount%
White63196.3%
Hispanic or Latino121.8%
Other race121.8%

Household income

$15k–$25k 4.3%
$25k–$35k 4.9%
$35k–$50k 14.8%
$50k–$75k 15.4%
$75k–$100k 14.5%
$100k–$150k 39.8%
$150k–$200k 1.9%
$200k+ 4.3%
Range% of households
$15k–$25k4.3%
$25k–$35k4.9%
$35k–$50k14.8%
$50k–$75k15.4%
$75k–$100k14.5%
$100k–$150k39.8%
$150k–$200k1.9%
$200k+4.3%
Median income$88,750

Housing

Home values

Under $50k 1.9%
$100k–$150k 4.6%
$150k–$200k 4.0%
$200k–$300k 18.2%
$300k–$500k 23.1%
$500k–$1M 42.9%
$1M+ 5.2%

Housing overview

MetricValue
Median home value$484,600
Median rent / month$0
Owner occupied100.0%
Renter occupied0.0%
Vacant90.4%
Single-family detached90.6%
Large apartment buildings0.0%
Mobile homes6.3%
Median rooms5.2
Avg household size (owned)1.96

Year built

Era%
2020 or later0.5%
2010–20193.5%
2000–200926.6%
1990–199914.1%
1980–198915.7%
1970–197925.9%
1960–19696.1%
1950–19592.6%
1940–19494.4%
1939 or earlier0.5%

Bedrooms

Size% of units
No bedroom (studio)0.5%
1 bedroom8.8%
2 bedrooms23.2%
3 bedrooms33.3%
4 bedrooms25.7%
5+ bedrooms8.6%

Vehicles per household

Vehicles% of households
No vehicle0.0%
1 vehicle15.1%
2 vehicles62.3%
3 or more22.5%

Heating fuel

Fuel type%
Utility gas4.9%
Electricity18.2%
Propane / LP gas55.6%
Fuel oil2.2%
Wood19.1%

Households & families

Household typeCount%
Married-couple family26481.5%
Cohabiting couple92.8%
Male householder, no spouse268.0%
Female householder, no spouse257.7%
Households with children under 18319.6%
Households with seniors (65+)21967.6%
Average household size1.96

Marital status

StatusMaleFemale
Never married5.8%10.0%
Married86.5%83.5%
Separated0.0%0.0%
Widowed4.5%0.3%
Divorced3.2%6.2%

Education

Less than 9th grade 0.3%
Some HS, no diploma 3.0%
HS graduate 7.2%
Some college, no degree 29.3%
Associate's degree 13.8%
Bachelor's degree 27.8%
Graduate / professional 18.5%
Metric%
HS diploma or higher96.7%
Bachelor's or higher46.3%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool00.0%
Kindergarten00.0%
Elementary school413.8%
High school2275.9%
College / grad school310.3%

Employment

Industry of employment

Arts, food & hospitality 18.4%
Professional & management 17.3%
Retail trade 13.3%
Education & healthcare 12.8%
Construction 12.2%
Information 9.7%
Finance & real estate 6.6%
Agriculture & mining 4.1%
Public administration 3.1%
Transportation & utilities 2.0%
Other services 0.5%

Occupation

Category%
Management, business & arts43.4%
Service13.3%
Sales & office29.1%
Natural resources & construction12.2%
Production & transportation2.0%

Employment type

Type%
Private sector54.6%
Government27.6%
Self-employed17.9%
Unpaid family workers0.0%

Commute

Method%
Drive alone54.1%
Carpool7.1%
Public transit0.0%
Walk23.0%
Other means0.0%
Avg commute (minutes)18.5

Poverty

All people 4.2%
Under 18 years 25.9%
18 and over 3.2%
Married-couple families 1.1%
Female-led households 0.0%

Income support

Source% of households
Social Security64.2%
Retirement income54.0%
Supplemental Security1.9%
Cash public assistance0.0%
Food stamps / SNAP0.0%

Health indicators

Condition%
High blood pressure36.8%
High cholesterol37.1%
Heart disease7.7%
Stroke3.2%
Asthma8.5%
Arthritis28.6%
Kidney disease3.2%
Pulmonary disease6.4%
Cancer9.0%
Behavior / access%
Binge drinking12.1%
No physical activity18.6%
Less than 7 hrs sleep27.7%
Fair or poor health11.8%
Poor mental health10.2%
Poor physical health10.1%
No health insurance10.8%
Visited doctor (checkup)73.7%
Visited dentist72.4%
Cholesterol screening93.0%
Teeth loss8.7%

Veterans & disability

VeteransCount%
Civilian veterans7311.9%
Disability%
Any disability15.9%
Under 180.0%
18–64 years25.0%
65 and over13.0%

Health insurance coverage

Type%
Private insurance59.6%
Public insurance74.3%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only64299.8%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)63298.3%
Born in same state63298.3%
Born in different state15824.6%
Foreign born00.0%
Naturalized citizen111.7%
Not a US citizen872.7%

Ancestry

AncestryCount%
French23035.8%
Italian17727.5%
Polish6910.7%
Arab426.5%
AncestryCount%
Dutch325%
Norwegian152.3%
English20.3%

Technology access

Metric% of households
Computer access50.4%
Internet access95.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions
What is the ZIP code for Island Park, ID?
Island Park, ID has one ZIP code: 83429.
What is the main ZIP code for Island Park, ID?
The primary ZIP code for Island Park, ID is 83429. The city uses area code 208 for phone service.
What county is Island Park, ID in?
Island Park is located in Fremont County, Idaho.
How many ZIP codes are in Island Park, ID?
Island Park, ID has 1 ZIP code.
What ZIP code should I use when mailing packages to businesses in Island Park's downtown area along Yellowstone Avenue?
All mail to Island Park, including the downtown commercial district along Yellowstone Avenue, uses the ZIP code 83429.
What is the ZIP code for Island Park's residential neighborhoods near Henry's Fork of the Snake River?
The Henry's Fork area and all residential neighborhoods throughout Island Park use ZIP code 83429.
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