What is the population of Irwin?

The population of Irwin, ID is 247.

Where is Irwin located?

Irwin, ID is located at latitude 43.4085300 and longitude -111.2993900. It is in United States.

What is the area of Irwin?

The area of Irwin, ID is 6.400142 km².

What is the elevation of Irwin?

Irwin, ID has an elevation of 1623 meters (5325 feet) above sea level.

What time zone is Irwin in?

Irwin, ID is in the America/Boise time zone.

What state is Irwin in?

Irwin is in the state of Idaho, United States.

What county is Irwin, ID in?

Irwin is in Bonneville County, Idaho.

How has the population of Irwin changed?

The population of Irwin, ID has increased from 219 (2010) to 247 (2019), a change of 12.8%.

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Irwin, Idaho

Irwin: city in Bonneville County, Idaho, United States

About

Irwin is a city located in the county of Bonneville in the U.S. state of Idaho. Its population at the 2010 census was 219 and a population density of 34 people per km². After 9 years in 2019 city had an estimated population of 247 inhabitants.

Irwin locator map — Location of Irwin on Idaho map.

Quick Facts about Irwin

Population	247 (2019)
Country	United States of America
State	Idaho (United States)
County	Bonneville County
Postal code	83428
Phone Area Codes	208
Area	6.4 km²
Latitude & Longitude	43.4085,-111.2994
Altitude	5,325 feet / 1623 meters
Time Zone	America/Boise
Local time	22:59:16 (16th April 2026)
Density	39 Pop. per km² as of 2019
Population growth	11.34% (2010-2019)
Weather	29℉ Slight Chance T-storms then Rain And Snow 7-days weather

Bonneville County Idaho Incorporated and Unincorporated areas Irwin Highlighted locator map image

Geography

Irwin is located at 43°24'31"N 111°17'58"W (43.4085300, -111.2993900).

Irwin map

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Weather

29°F

Slight Chance T-storms then Rain And Snow

22 mph SSW Wednesday Night

A slight chance of thunderstorms and rain and snow showers before 9pm, then rain between 9pm and midnight, then rain and snow. Cloudy, with a low arou...

7-Day Forecast

Demographics

The population of Irwin increased by 11.34% in 9 years.

Year	Population	% Change	Method
2010	219	-	census
2011	234	6.41%	estimation process
2012	236	0.85%	estimation process
2013	235	-0.43%	estimation process
2014	237	0.84%	estimation process
2015	241	1.66%	estimation process
2016	246	2.03%	estimation process
2017	247	0.4%	estimation process
2018	246	-0.41%	estimation process
2019	247	0.4%	estimation process

Irwin zip code is 83428. County name: Bonneville, County fips: 16019

Nearby Post Offices

Closest post offices linked to Irwin.

Post Office Name	City	ZIP
Irwin Post Office	Irwin (ID)	83428

Other places with the same name (2)

Irwin, Pennsylvania borough of Pennsylvania with a population of 3,716 people.
Irwin, Illinois village in Kankakee County, Illinois, United States with a population of 71 people.

Other cities in Bonneville County

Cities, towns, neighborhoods & other populated places in Bonneville County , ID.

City Name	Population	Title
Idaho Falls	62,888	The most populous city in Bonneville County, Idaho.
Ammon	17,115	City in Idaho, United States
Iona	2,354	City in Idaho, United States
Ucon	1,161	City in Bonneville County, Idaho, United States
Swan Valley	245	City in Bonneville County, Idaho, United States