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Irwin, Iowa
Irwin in 1941
Irwin in 1941
Location of Irwin, Iowa
Location of Irwin, Iowa
Country  United States
State  Iowa
County Shelby
Area
 • Total 0.58 sq mi (1.52 km2)
 • Land 0.58 sq mi (1.52 km2)
 • Water 0.00 sq mi (0.00 km2)
Elevation
1,289 ft (393 m)
Population
 (2020)
 • Total 319
 • Density 545.30/sq mi (210.44/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
51446
Area code(s) 712
FIPS code 19-39000
GNIS feature ID 0457863

Irwin is a city in Shelby County, Iowa, United States, along the West Nishnabotna River. The population was 319 at the time of the 2020 census.

History

The Western Town Lot Company established Irwin in 1881. The town was named for E. W. Irwin, the property owner. Irwin was incorporated in 1892.

Geography

Irwin is located at 41°47′26″N 95°12′26″W / 41.79056°N 95.20722°W / 41.79056; -95.20722 (41.790449, -95.207341).

According to the United States Census Bureau, the city has a total area of 0.60 square miles (1.55 km2), all of it land.

Demographics

Historical populations
Year Pop. ±%
1900 295 —    
1910 278 −5.8%
1920 311 +11.9%
1930 357 +14.8%
1940 345 −3.4%
1950 381 +10.4%
1960 425 +11.5%
1970 446 +4.9%
1980 427 −4.3%
1990 394 −7.7%
2000 372 −5.6%
2010 341 −8.3%
2020 319 −6.5%
Source: and Iowa Data Center
Source:
U.S. Decennial Census

2010 census

As of the census of 2010, there were 341 people, 165 households, and 97 families residing in the city. The population density was 568.3 inhabitants per square mile (219.4/km2). There were 185 housing units at an average density of 308.3 per square mile (119.0/km2). The racial makeup of the city was 98.8% White, 0.6% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 1.2% of the population.

There were 165 households, of which 21.2% had children under the age of 18 living with them, 51.5% were married couples living together, 6.1% had a female householder with no husband present, 1.2% had a male householder with no wife present, and 41.2% were non-families. 37.6% of all households were made up of individuals, and 20% had someone living alone who was 65 years of age or older. The average household size was 2.07 and the average family size was 2.71.

The median age in the city was 52.3 years. 18.5% of residents were under the age of 18; 6.5% were between the ages of 18 and 24; 15.3% were from 25 to 44; 29.9% were from 45 to 64; and 29.9% were 65 years of age or older. The gender makeup of the city was 47.2% male and 52.8% female.

Shelby County, Iowa. The general attitude in this community about education is that every child shou . . . - NARA - 522345
The Irwin Consolidated School is listed on the National Register of Historic Places

Education

Irwin is served by the IKM–Manning Community School District.

It was previously in the Irwin Community School District until July 1, 1992, when it merged into the IKM Community School District. That in turn, on July 1, 2011, merged into IKM–Manning.

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