Irwin ZIP Code List — Bonneville County, ID

There is one unique ZIP code in Irwin, Idaho and it is 83428. Area code: 208.
1
ZIP codes
248.97
sq mi land
23.94
sq mi water
208
area code
Irwin, ID ZIP code map

About Irwin, ID

Irwin, Idaho is a small, serene community located in Bonneville County. Nestled within a picturesque landscape, it offers a peaceful atmosphere that contrasts with the hustle and bustle of larger cities. Known for its natural beauty, Irwin serves as a gateway to outdoor adventures and recreational activities.

Location & geography

Irwin is situated in eastern Idaho, approximately 30 miles northeast of Idaho Falls and about 15 miles from the larger town of Rexburg. The city occupies a total land area of 248.97 square miles, with a water area of 23.94 square miles, providing a mix of terrain that includes rivers and rolling hills. This unique geography makes it an ideal spot for outdoor enthusiasts and nature lovers.

Community & economy

The character of Irwin reflects a tight-knit community where residents value tranquility and a slower pace of life. The local economy is primarily based on agriculture and tourism, drawing visitors to enjoy its scenic landscapes and outdoor activities. Daily life in Irwin often revolves around community events and outdoor gatherings, showcasing the friendly spirit of its residents.

Transportation

Transportation in Irwin is facilitated primarily by state highways, with access to Route 31 providing a link to neighboring towns and cities. The nearest major airport is Idaho Falls Regional Airport, located roughly 30 miles away, serving both domestic and regional flights. There are no public transit services directly in Irwin, but residents typically rely on personal vehicles for travel.

History

Irwin has a rich history rooted in the natural beauty of the Idaho wilderness, with early settlers attracted to its fertile lands. The area was established primarily for agriculture, which remains a key industry to this day. Notable events have included various local festivals that celebrate the town's heritage and connection to the great outdoors.

Did you know?

One surprising fact about Irwin is its proximity to the scenic Palisades Reservoir, popular for fishing, boating, and camping. Additionally, despite its small size, Irwin is often overlooked as a hidden gem for visitors exploring the stunning landscapes of southeastern Idaho.

ZIP codes for Irwin, ID (1)
ZIP code City County Map
83428 Irwin Bonneville View map

Demographics & statistics

525
Population
56.5
Median age
$64,219
Median household income
$66,660
Per capita income
$514,100
Median home value
$0
Median monthly rent
93.6%
Home ownership
4.4%
Poverty rate
22.7%
Unemployment
474
Housing units
30.4%
Bachelor's or higher

Age distribution

Male Female
11
5–9
11
14
10–14
15
7
15–19
8
40
20–24
41
6
25–34
6
12
35–44
13
20
45–54
22
40
55–59
42
46
60–64
49
46
65–74
49
11
75–84
11
2
85+
3
← Male
Female →

Age summary

GroupCount%
Under 185811.0%
18 and over46789.0%
65 and over12223.2%
Median age56.5 years

Race & ethnicity

White 97%
Hispanic or Latino 1.5%
Two or more races 1.5%
GroupCount%
White51797%
Hispanic or Latino81.5%
Two or more races81.5%

Household income

Under $10k 8.2%
$10k–$15k 1.8%
$15k–$25k 4.6%
$25k–$35k 0.5%
$35k–$50k 10.5%
$50k–$75k 33.8%
$75k–$100k 9.6%
$100k–$150k 15.5%
$150k–$200k 2.3%
$200k+ 13.2%
Range% of households
Under $10k8.2%
$10k–$15k1.8%
$15k–$25k4.6%
$25k–$35k0.5%
$35k–$50k10.5%
$50k–$75k33.8%
$75k–$100k9.6%
$100k–$150k15.5%
$150k–$200k2.3%
$200k+13.2%
Median income$64,219

Housing

Home values

Under $50k 2.4%
$50k–$100k 1.5%
$100k–$150k 2.0%
$150k–$200k 6.3%
$200k–$300k 13.2%
$300k–$500k 22.9%
$500k–$1M 46.3%
$1M+ 5.4%

Housing overview

MetricValue
Median home value$514,100
Median rent / month$0
Owner occupied93.6%
Renter occupied6.4%
Vacant55.1%
Single-family detached84.6%
Large apartment buildings0.0%
Mobile homes11.1%
Median rooms5.6
Avg household size (owned)2.45

Year built

Era%
2020 or later0.0%
2010–20195.9%
2000–200933.4%
1990–19998.4%
1980–19899.0%
1970–197917.4%
1960–19699.6%
1950–19594.7%
1940–19490.2%
1939 or earlier11.3%

Bedrooms

Size% of units
No bedroom (studio)0.8%
1 bedroom10.9%
2 bedrooms15.4%
3 bedrooms49.8%
4 bedrooms11.9%
5+ bedrooms11.3%

Vehicles per household

Vehicles% of households
No vehicle0.9%
1 vehicle15.5%
2 vehicles22.4%
3 or more61.2%

Heating fuel

Fuel type%
Utility gas10.5%
Electricity36.1%
Propane / LP gas35.6%
Wood10.0%
Solar2.3%

Households & families

Household typeCount%
Married-couple family15369.9%
Cohabiting couple73.2%
Male householder, no spouse2411.0%
Female householder, no spouse3516.0%
Households with children under 183013.7%
Households with seniors (65+)8840.2%
Average household size2.40

Marital status

StatusMaleFemale
Never married6.4%6.2%
Married85.0%78.0%
Separated0.0%1.7%
Widowed0.0%9.5%
Divorced8.6%4.6%

Education

Less than 9th grade 0.5%
Some HS, no diploma 1.1%
HS graduate 31.7%
Some college, no degree 25.7%
Associate's degree 10.6%
Bachelor's degree 25.1%
Graduate / professional 5.3%
Metric%
HS diploma or higher98.4%
Bachelor's or higher30.4%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool00.0%
Kindergarten00.0%
Elementary school4630.7%
High school1711.3%
College / grad school8758.0%

Employment

Industry of employment

Agriculture & mining 19.1%
Professional & management 16.2%
Education & healthcare 15.4%
Construction 11.0%
Manufacturing 8.1%
Finance & real estate 8.1%
Arts, food & hospitality 8.1%
Retail trade 4.4%
Transportation & utilities 3.7%
Public administration 3.7%
Other services 2.2%

Occupation

Category%
Management, business & arts39.7%
Service14.7%
Sales & office16.9%
Natural resources & construction11.0%
Production & transportation17.6%

Employment type

Type%
Private sector70.6%
Government19.9%
Self-employed9.6%
Unpaid family workers0.0%

Commute

Method%
Drive alone66.9%
Carpool8.1%
Public transit0.0%
Walk4.4%
Other means0.0%
Avg commute (minutes)30.5

Poverty

All people 4.4%
Under 18 years 0.0%
18 and over 4.9%
Married-couple families 2.6%
Female-led households 0.0%

Income support

Source% of households
Social Security36.5%
Retirement income26.9%
Supplemental Security4.6%
Cash public assistance0.0%
Food stamps / SNAP9.6%

Health indicators

Condition%
High blood pressure32.7%
High cholesterol35.2%
Heart disease7.1%
Stroke2.9%
Asthma8.6%
Arthritis25.2%
Kidney disease3.0%
Pulmonary disease5.7%
Cancer8.3%
Behavior / access%
Binge drinking12.0%
No physical activity18.8%
Less than 7 hrs sleep27.6%
Fair or poor health10.8%
Poor mental health10.8%
Poor physical health9.4%
No health insurance11.4%
Visited doctor (checkup)72.6%
Visited dentist74.9%
Cholesterol screening91.7%
Teeth loss10.2%

Veterans & disability

VeteransCount%
Civilian veterans173.6%
Disability%
Any disability11.8%
Under 180.0%
18–64 years6.7%
65 and over32.0%

Health insurance coverage

Type%
Private insurance58.1%
Public insurance37.1%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only525100.0%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)52399.6%
Born in same state52299.4%
Born in different state22342.5%
Foreign born10.2%
Naturalized citizen20.4%
Not a US citizen00.0%

Ancestry

AncestryCount%
French21240.4%
Italian5510.5%
Dutch407.6%
Arab254.8%
AncestryCount%
English71.3%
Polish51%
German10.2%

Technology access

Metric% of households
Computer access41.7%
Internet access93.6%

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

Frequently asked questions
What is the ZIP code for Irwin, ID?
Irwin, ID has one ZIP code: 83428.
What is the main ZIP code for Irwin, ID?
The primary ZIP code for Irwin, ID is 83428. The city uses area code 208 for phone service.
What county is Irwin, ID in?
Irwin is located in Bonneville County, Idaho.
How many ZIP codes are in Irwin, ID?
Irwin, ID has 1 ZIP code.
What is the ZIP code for Irwin in Bonneville County, Idaho?
Irwin, Idaho is located in ZIP code 83428, which is in Bonneville County in southeastern Idaho.
If I'm mailing something to a business in Irwin, Idaho, which ZIP code should I use?
You should use ZIP code 83428 for all mail addressed to Irwin, Idaho, as it is the only ZIP code serving this community.
Need the complete Idaho ZIP code database? Download all ID ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →