Mount Vernon, IL Profile: Facts, Map & Data


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Mount Vernon, Illinois - Basic Facts

The City of Mount Vernon had a population of 14,784 as of July 1, 2017. Mount Vernon ranks in 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 Mount Vernon is located at latitude 38.3142 and longitude -88.9175 in Jefferson County. The formal boundaries for the City of Mount Vernon (see map below) encompass a land area of 14.42 sq. miles and a water area of 0.08 sq. miles. Jefferson County is in the Central time zone (GMT -6). The elevation is 512 feet.

The City of Mount Vernon (GNIS ID: 2395129) 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 Mount Vernon is located within Township of Mount Vernon, a minor civil division (MCD) of Jefferson County.

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

Neighborhood Data

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City of Mount Vernon, IL Boundary Map

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Boundary Maps: Township of Mount Vernon | Jefferson County | Illinois Counties

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Mount Vernon, IL Data & Demographics (As of July 1, 2017)


Total Population 14,784
Daytime Population: Workers 17,257
Daytime Population: Residents 8,343
Total Daytime Population (TDP) 25,600
Ratio TDP/Total Population1 1.73
Population in Households 14,460
Population in Familes 10,672
Population in Group Qrtrs 324
Population Density2 1,025
Diversity Index3 40


Median Household Income $35,881
Average Household Income $54,535
Per Capita Income $24,089


Total Housing Units 7,577 (100%)
Owner Occupied HU 3,553 (46.9%)
Renter Occupied HU 2,947 (38.9%)
Vacant Housing Units 1,076 (14.2%)
Median Home Value $84,044
Average Home Value $114,467


Total Households 6,501
Average Household Size 2.22
Family Households 3,667
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 -0.5% -0.48%
Households -0.47% -0.46%
Families -0.48% -0.64%
Median Household Income   1.23%
Per Capita Income   2.73%

Mount Vernon, IL - Peer Comparisons by Rank and Percentile

The table below compares Mount Vernon 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 # 164 88th
Population Density # 737 46th
Diversity Index # 244 82nd
Median Household Income # 1302 5th
Per Capita Income # 951 31st

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

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