Fairmont City, IL Profile: Facts, Map & Data


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Fairmont City, Illinois - Basic Facts

The Village of Fairmont City had a population of 2,682 as of July 1, 2017. Fairmont City 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 Fairmont City is located at latitude 38.6512 and longitude -90.1021 in St. Clair County. The formal boundaries for the Village of Fairmont City (see map below) encompass a land area of 6.03 sq. miles and a water area of 0.35 sq. miles. St. Clair County is in the Central time zone (GMT -6). The elevation is 420 feet.

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

The Village of Fairmont City (GNIS ID: 2398855) 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 Village of Fairmont City is located within Township of Canteen, a minor civil division (MCD) of St. Clair County.

Beneath the boundary map are tables with Fairmont City population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Fairmont City: Fairmount City, Willow Town.

Neighborhood Data

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Village of Fairmont City, IL Boundary Map

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Boundary Maps: Township of Canteen | St. Clair County | Illinois Counties

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Fairmont City, IL Data & Demographics (As of July 1, 2017)


Total Population 2,682
Daytime Population: Workers 470
Daytime Population: Residents 1,689
Total Daytime Population (TDP) 2,159
Ratio TDP/Total Population1 0.80
Population in Households 2,682
Population in Familes 2,236
Population in Group Qrtrs 0
Population Density2 445
Diversity Index3 84


Median Household Income $31,662
Average Household Income $40,757
Per Capita Income $12,084


Total Housing Units 882 (100%)
Owner Occupied HU 542 (61.5%)
Renter Occupied HU 242 (27.4%)
Vacant Housing Units 98 (11.1%)
Median Home Value $63,696
Average Home Value $91,513


Total Households 784
Average Household Size 3.42
Family Households 552
Average Family Size 4
  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 0.28% -0.18%
Households -0.17% -0.33%
Families -0.44% -0.48%
Median Household Income   -0.22%
Per Capita Income   1.68%

Fairmont City, IL - Peer Comparisons by Rank and Percentile

The table below compares Fairmont City to the other 1,368 incorporated cities, towns and CDPs in Illinois 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 # 455 67th
Population Density # 1113 19th
Diversity Index # 6 100th
Median Household Income # 1341 2nd
Per Capita Income # 1364 0th

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

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