Diagonal, IA Profile: Facts, Map & Data


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Diagonal, Iowa - Basic Facts

The City of Diagonal had a population of 370 as of July 1, 2017.

The primary coordinate point for Diagonal is located at latitude 40.8109 and longitude -94.3419 in Ringgold County. The formal boundaries for the City of Diagonal (see map below) encompass a land area of 0.9 sq. miles and a water area of 0 sq. miles. Ringgold County is in the Central time zone (GMT -6). The elevation is 1,158 feet.

The City of Diagonal (GNIS ID: 2394532) 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 Diagonal is located within Township of Washington, a minor civil division (MCD) of Ringgold County.

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

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Boundary Maps: Township of Washington | Ringgold County | Iowa Counties

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


Total Population 370
Daytime Population: Workers 108
Daytime Population: Residents 198
Total Daytime Population (TDP) 306
Ratio TDP/Total Population1 0.83
Population in Households 350
Population in Familes 298
Population in Group Qrtrs 20
Population Density2 409
Diversity Index3 14


Median Household Income $51,106
Average Household Income $62,594
Per Capita Income $23,468


Total Housing Units 153 (100%)
Owner Occupied HU 107 (69.9%)
Renter Occupied HU 27 (17.6%)
Vacant Housing Units 19 (12.4%)
Median Home Value $115,000
Average Home Value $200,926


Total Households 134
Average Household Size 2.61
Family Households 94
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 1.59% 0.95%
Households 1.65% 0.88%
Families 3.95% 0.84%
Median Household Income   2.96%
Per Capita Income   3.11%

Diagonal, IA - Peer Comparisons by Rank and Percentile

The table below compares Diagonal 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 # 543 46th
Population Density # 700 31st
Diversity Index # 286 72nd
Median Household Income # 646 36th
Per Capita Income # 865 14th

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

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