Walnut, IA Profile: Facts, Map & Data


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Walnut, Iowa - Basic Facts

The City of Walnut had a population of 822 as of July 1, 2016.

The primary coordinate point for Walnut is located at latitude 41.4885 and longitude -95.2205 in Pottawattamie County. The formal boundaries for the City of Walnut (see map below) encompass a land area of 2.15 sq. miles and a water area of 0 sq. miles. Pottawattamie County is in the Central time zone (GMT -6). The elevation is 1,335 feet.

The City of Walnut (GNIS ID: 2397180) 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 Walnut is located within Township of Layton, a minor civil division (MCD) of Pottawattamie County.

Beneath the boundary map are tables with Walnut 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

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City of Walnut, IA Boundary Map

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

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


Total Population 822
Population in Households 822
Population in Familes 654
Population in Group Qrtrs 0
Population Density1 382
Diversity Index2 9


Total Households 370
Average Household Size 2.22
Family Households 235
Average Family Size 3


Total Housing Units 411 (100%)
Owner Occupied HU 260 (63.3%)
Renter Occupied HU 110 (26.8%)
Vacant Housing Units 41 ( 10.0%)
Median Home Value $96,173
Average Home Value $143,870


Median Household Income $57,007
Average Household Income $65,538
Per Capita Income $29,094
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.74% 0.48%
Households 0.71% 0.48%
Families 1.51% 0.34%
Median Household Income   3.16%
Per Capita Income   2.38%
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.

Walnut, IA - Peer Comparisons by Rank and Percentile

The table below compares Walnut 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 # 351 65th
Population Density1 # 723 28th
Diversity Index2 # 492 51st
Median Household Income # 309 69th
Per Capita Income # 321 68th

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

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