Underwood, IA Profile: Facts, Map & Data


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Underwood, Iowa - Basic Facts

The City of Underwood had a population of 951 as of July 1, 2017.

The primary coordinate point for Underwood is located at latitude 41.3802 and longitude -95.6825 in Pottawattamie County. The formal boundaries for the City of Underwood (see map below) encompass a land area of 1.1 sq. miles and a water area of 0.03 sq. miles. Pottawattamie County is in the Central time zone (GMT -6). The elevation is 1,070 feet.

The City of Underwood (GNIS ID: 2397083) 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 Underwood is located within Township of Norwalk, a minor civil division (MCD) of Pottawattamie County.

Beneath the boundary map are tables with Underwood population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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City of Underwood, IA Boundary Map

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Boundary Maps: Township of Norwalk | Pottawattamie County | Iowa Counties

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Underwood, IA Data & Demographics (As of July 1, 2017)


Total Population 951
Daytime Population: Workers 455
Daytime Population: Residents 438
Total Daytime Population (TDP) 893
Ratio TDP/Total Population1 0.94
Population in Households 951
Population in Familes 850
Population in Group Qrtrs 0
Population Density2 867
Diversity Index3 8


Median Household Income $83,395
Average Household Income $93,885
Per Capita Income $33,432


Total Housing Units 340 (100%)
Owner Occupied HU 261 (76.8%)
Renter Occupied HU 79 (23.2%)
Vacant Housing Units 0
Median Home Value $207,986
Average Home Value $207,471


Total Households 340
Average Household Size 2.8
Family Households 267
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.31% 0.31%
Households 0.25% 0.29%
Families 0.21% 0.22%
Median Household Income   1.06%
Per Capita Income   1.93%

Underwood, IA - Peer Comparisons by Rank and Percentile

The table below compares Underwood to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2017 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 # 304 70th
Population Density # 386 62nd
Diversity Index # 627 39th
Median Household Income # 19 98th
Per Capita Income # 122 88th

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

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