Washington, IA Profile: Facts & Data


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Washington, Iowa - Basic Facts

The City of Washington had a population of 7,290 as of July 1, 2018. Washington 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 Washington is located at latitude 41.2979 and longitude -91.6923 in Washington County. The formal boundaries for the City of Washington (see map below) encompass a land area of 5.24 sq. miles and a water area of 0 sq. miles. Washington County is in the Central time zone (GMT -6). The elevation is 758 feet.

The City of Washington (GNIS ID: 2397207) 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 Washington is located within Township of Washington, a minor civil division (MCD) of Washington County.

Beneath the boundary map are tables with Washington population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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Washington, IA Data & Demographics (As of July 1, 2018)


Total Population 7,290
Population in Households 7,112
Population in Familes 5,421
Population in Group Qrtrs 178
Population Density1 1,390
Diversity Index2 36


Median Household Income $49,011
Average Household Income $61,879
Per Capita Income $26,315


Total Housing Units 3,371 (100%)
Owner Occupied HU 1,973 (58.5%)
Renter Occupied HU 1,103 (32.7%)
Vacant Housing Units 296 ( 8.8%)
Median Home Value $118,407
Average Home Value $142,863


Total Households 3,075
Average Household Size 2.31
Family Households 1,866
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 0.13% 0.23%
Households 0.16% 0.27%
Families 0.12% 0.15%
Median Household Income   1.59%
Per Capita Income   2.34%

Washington, IA - Peer Comparisons by Rank and Percentile

The table below compares Washington to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2018 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 # 56 95th
Population Density # 131 87th
Diversity Index # 50 95th
Median Household Income # 766 24th
Per Capita Income # 730 28th

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

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Iowa Census Data Comparison Tool

Compare Iowa July 1, 2018 Data
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