Marshalltown, IA Profile: Facts, Map & Data


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Marshalltown, Iowa - Basic Facts

The City of Marshalltown had a population of 27,821 as of July 1, 2016. Marshalltown ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Marshalltown is located at latitude 42.0343 and longitude -92.9063 in Marshall County. The formal boundaries for the City of Marshalltown (see map below) encompass a land area of 19.28 sq. miles and a water area of 0.03 sq. miles. Marshall County is in the Central time zone (GMT -6). The elevation is 938 feet.

The City of Marshalltown (GNIS ID: 2395024) 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 Marshalltown is located within Township of Timber Creek, a minor civil division (MCD) of Marshall County.

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

Alternate Unofficial Names for Marshalltown: Marshall, Marshall Town.

Neighborhood Data

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City of Marshalltown, IA Boundary Map

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Boundary Maps: Township of Timber Creek | Marshall County | Iowa Counties

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


Total Population 27,821
Population in Households 26,644
Population in Familes 21,189
Population in Group Qrtrs 1,177
Population Density1 1,443
Diversity Index2 60


Total Households 10,350
Average Household Size 2.57
Family Households 6,601
Average Family Size 3


Total Housing Units 11,282 (100%)
Owner Occupied HU 6,914 (61.3%)
Renter Occupied HU 3,436 (30.5%)
Vacant Housing Units 932 ( 8.3%)
Median Home Value $108,516
Average Home Value $129,808


Median Household Income $47,461
Average Household Income $58,756
Per Capita Income $22,469
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.16% 0.14%
Households 0.02% 0.07%
Families -0.07% -0.01%
Median Household Income   2.33%
Per Capita Income   1.79%
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.

Marshalltown, IA - Peer Comparisons by Rank and Percentile

The table below compares Marshalltown 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 # 17 98th
Population Density1 # 111 89th
Diversity Index2 # 11 99th
Median Household Income # 695 31st
Per Capita Income # 903 11th

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

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