Madison, IL Profile: Facts & Data


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Madison, Illinois - Basic Facts

The City of Madison had a population of 3,528 as of July 1, 2018. Madison ranks in the lower quartile for Population Density and the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Madison is located at latitude 38.6758 and longitude -90.109 in Madison County. The formal boundaries for the City of Madison (see map below) encompass a land area of 14.52 sq. miles and a water area of 2.64 sq. miles. Madison County is in the Central time zone (GMT -6). The elevation is 413 feet.

While the primary coordinates for City of Madison are located in Madison County, it should be noted that the formal boundaries for this community also extend into and St. Clair County.

The City of Madison (GNIS ID: ) has a P1 Census Class Code which indicates populated place that is also an incorporated place with the same name and the same census code. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Madison is located within Township of Nameoki, a minor civil division (MCD) of Madison County.

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  1. Madison 2018 Demographic Data
  2. Growth Rates for Madison (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois 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.


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


Total Population 3,528
Population in Households 3,486
Population in Familes 2,709
Population in Group Qrtrs 42
Population Density2 243
Diversity Index3 58


Median Household Income $33,198
Average Household Income $45,652
Per Capita Income $18,193


Total Housing Units 1,898 (100%)
Owner Occupied HU 773 (40.7%)
Renter Occupied HU 652 (34.4%)
Vacant Housing Units 474 (25.0%)
Median Home Value $65,484
Average Home Value $87,387


Total Households 1,424
Average Household Size 2.45
Family Households 855
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 -1.18% -0.72%
Households -1.2% -0.7%
Families -0.95% -0.83%
Median Household Income   1.55%
Per Capita Income   2.5%

Madison, IL - Peer Comparisons by Rank and Percentile

The table below compares Madison to the other 1,368 incorporated cities, towns and CDPs in Illinois 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 # 407 70th
Population Density # 1240 9th
Diversity Index # 133 90th
Median Household Income # 1333 3rd
Per Capita Income # 1329 3rd

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

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