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Irwin, Idaho
Location of Irwin in Bonneville County, Idaho.
Location of Irwin in Bonneville County, Idaho.
Country United States
State Idaho
County Bonneville
Area
 • Total 2.47 sq mi (6.40 km2)
 • Land 2.47 sq mi (6.40 km2)
 • Water 0.00 sq mi (0.00 km2)
Elevation
5,325 ft (1,623 m)
Population
 (2010)
 • Total 219
 • Estimate 
(2019)
247
 • Density 100.00/sq mi (38.61/km2)
Time zone UTC-7 (Mountain (MST))
 • Summer (DST) UTC-6 (MDT)
ZIP code
83428
Area code(s) 208, 986
FIPS code 16-40510
GNIS feature ID 0397812

Irwin is a city in Bonneville County, Idaho, United States. It is part of the Idaho Falls, Idaho Metropolitan Statistical Area. The population was 219 at the 2010 census.

Geography

Irwin is located at 43°23′18″N 111°16′5″W / 43.38833°N 111.26806°W / 43.38833; -111.26806 (43.388220, -111.268118).

According to the United States Census Bureau, the city has a total area of 2.45 square miles (6.35 km2), all of it land.

Demographics

Historical population
Census Pop.
1950 147
1960 330 124.5%
1970 228 −30.9%
1980 113 −50.4%
1990 108 −4.4%
2000 157 45.4%
2010 219 39.5%
2019 (est.) 247 12.8%
U.S. Decennial Census

2010 census

As of the census of 2010, there were 219 people, 103 households, and 70 families residing in the city. The population density was 89.4 inhabitants per square mile (34.5/km2). There were 166 housing units at an average density of 67.8 per square mile (26.2/km2). The racial makeup of the city was 99.1% White, 0.5% Asian, and 0.5% from two or more races. Hispanic or Latino of any race were 0.5% of the population.

There were 103 households, of which 15.5% had children under the age of 18 living with them, 62.1% were married couples living together, 4.9% had a female householder with no husband present, 1.0% had a male householder with no wife present, and 32.0% were non-families. 25.2% of all households were made up of individuals, and 9.7% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.53.

The median age in the city was 52.4 years. 11.9% of residents were under the age of 18; 5.1% were between the ages of 18 and 24; 21% were from 25 to 44; 38.4% were from 45 to 64; and 23.7% were 65 years of age or older. The gender makeup of the city was 51.6% male and 48.4% female.

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