Fort Madison, IA Profile: Facts & Data


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Fort Madison, Iowa - Basic Facts

The City of Fort Madison had a population of 10,699 as of July 1, 2018. Fort Madison 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 Fort Madison is located at latitude 40.6199 and longitude -91.3519 in Lee County. The formal boundaries for the City of Fort Madison (see map below) encompass a land area of 9.49 sq. miles and a water area of 3.74 sq. miles. Lee County is in the Central time zone (GMT -6). The elevation is 525 feet.

The City of Fort Madison (GNIS ID: 2394796) 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 Fort Madison is located within Township of Madison, a minor civil division (MCD) of Lee County.

Alternate Unofficial Names for Fort Madison: Potowanek.

Jump to... (On This Page!)
  1. Fort Madison 2018 Demographic Data
  2. Growth Rates for Fort Madison (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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


Total Population 10,699
Population in Households 9,879
Population in Familes 7,403
Population in Group Qrtrs 820
Population Density2 1,127
Diversity Index3 31


Median Household Income $45,972
Average Household Income $56,963
Per Capita Income $24,205


Total Housing Units 4,945 (100%)
Owner Occupied HU 3,092 (62.5%)
Renter Occupied HU 1,216 (24.6%)
Vacant Housing Units 637 (12.9%)
Median Home Value $88,419
Average Home Value $123,811


Total Households 4,308
Average Household Size 2.29
Family Households 2,607
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population -0.39% -0.39%
Households -0.26% -0.45%
Families -0.28% -0.57%
Median Household Income   2.46%
Per Capita Income   2.57%

Fort Madison, IA - Peer Comparisons by Rank and Percentile

The table below compares Fort Madison 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 # 37 96th
Population Density # 230 77th
Diversity Index # 71 93rd
Median Household Income # 846 16th
Per Capita Income # 891 12th

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

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