Irwin, IA Profile: Facts, Map & Data


Irwin Local Links & Resources:
Hotels | Resources | ALL Irwin Content

Also See: Irwin, IA ZIP Codes & ZIP Code Maps | Local Area Photos

Irwin, Iowa - Basic Facts

Real Estate Resources

The City of Irwin had a population of 323 as of July 1, 2016.

The primary coordinate point for Irwin is located at latitude 41.7902 and longitude -95.2068 in Shelby County. The formal boundaries for the City of Irwin (see map below) encompass a land area of 0.6 sq. miles and a water area of 0 sq. miles. Shelby County is in the Central time zone (GMT -6). The elevation is 1,280 feet.

The City of Irwin (GNIS ID: 2395441) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Irwin is located within Township of Jefferson, a minor civil division (MCD) of Shelby County.

Beneath the boundary map are tables with Irwin population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Irwin, IA Boundary Map

Also See: BIG Map | Driving Directions | IA Congressional Districts
Boundary Maps: Township of Jefferson | Shelby County | Iowa Counties

Search the map for:

Irwin, IA Data & Demographics (As of July 1, 2016)


Total Population 323
Population in Households 323
Population in Familes 268
Population in Group Qrtrs 0
Population Density1 542
Diversity Index2 6


Total Households 160
Average Household Size 2.02
Family Households 109
Average Family Size 2


Total Housing Units 185 (100%)
Owner Occupied HU 122 (65.9%)
Renter Occupied HU 37 (20.0%)
Vacant Housing Units 25 (13.5%)
Median Home Value $89,286
Average Home Value $128,484


Median Household Income $43,691
Average Household Income $54,045
Per Capita Income $24,571
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.86% -0.63%
Households -0.49% -0.38%
Families 1.88% -0.56%
Median Household Income   1.83%
Per Capita Income   1.98%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Irwin, IA - Peer Comparisons by Rank and Percentile

The table below compares Irwin to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 581 43rd
Population Density1 # 616 39th
Diversity Index2 # 755 26th
Median Household Income # 825 18th
Per Capita Income # 716 29th

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.