Marengo, IA Profile: Facts, Map & Data


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Marengo, Iowa - Basic Facts

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The City of Marengo had a population of 2,502 as of July 1, 2016. Marengo 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 Marengo is located at latitude 41.7967 and longitude -92.0681 in Iowa County. The formal boundaries for the City of Marengo (see map below) encompass a land area of 2.08 sq. miles and a water area of 0.06 sq. miles. Iowa County is in the Central time zone (GMT -6). The elevation is 738 feet.

The City of Marengo (GNIS ID: 2395005) 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 Marengo is located within Township of Marengo, a minor civil division (MCD) of Iowa County.

Beneath the boundary map are tables with Marengo 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 Marengo, IA Boundary Map

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Boundary Maps: Township of Marengo | Iowa County | Iowa Counties

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


Total Population 2,502
Population in Households 2,416
Population in Familes 1,868
Population in Group Qrtrs 86
Population Density1 1,204
Diversity Index2 14


Total Households 1,055
Average Household Size 2.29
Family Households 640
Average Family Size 3


Total Housing Units 1,159 (100%)
Owner Occupied HU 741 (63.9%)
Renter Occupied HU 314 (27.1%)
Vacant Housing Units 104 ( 9.0%)
Median Home Value $108,696
Average Home Value $115,701


Median Household Income $46,087
Average Household Income $56,907
Per Capita Income $24,339
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.17% -0.13%
Households -0.06% -0.04%
Families -0.2% -0.19%
Median Household Income   2.85%
Per Capita Income   1.97%
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.

Marengo, IA - Peer Comparisons by Rank and Percentile

The table below compares Marengo 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 # 134 87th
Population Density1 # 198 80th
Diversity Index2 # 241 76th
Median Household Income # 743 26th
Per Capita Income # 742 26th

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