Potomac, IL Profile: Facts, Map & Data


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Potomac, Illinois - Basic Facts

The Village of Potomac had a population of 706 as of July 1, 2015.

The primary coordinate point for Potomac is located at latitude 40.3067 and longitude -87.7976 in Vermilion County. The formal boundaries for the Village of Potomac (see map below) encompass a land area of 0.48 sq. miles and a water area of 0 sq. miles. Vermilion County is in the Central time zone (GMT -6). The elevation is 669 feet.

The Village of Potomac (GNIS ID: 2399011) 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.

Beneath the boundary map are tables with Potomac population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Alternate Unofficial Names for Potomac: Marysville.

Village of Potomac, IL Boundary Map


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Boundary Maps: Township of Middlefork | Vermilion County | Illinois Counties

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Potomac, IL Data & Demographics (As of July 1, 2015)


Total Population 706
Population in Households 706
Population in Familes 602
Population in Group Qrtrs 0
Population Density1 1,453
Diversity Index2 9


Total Households 266
Average Household Size 2.65
Family Households 194
Average Family Size 3


Total Housing Units 302 (100%)
Owner Occupied HU 217 (71.9%)
Renter Occupied HU 49 (16.2%)
Vacant Housing Units 36 (11.9%)
Median Home Value $88,611
Average Home Value $114,384


Median Household Income $53,314
Average Household Income $61,111
Per Capita Income $24,182
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -1.14% -0.78%
Households -1.04% -0.76%
Families -0.86% -0.84%
Median Household Income   1.9%
Per Capita Income   2.06%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

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Potomac, IL - Peer Comparisons by Rank and Percentile

The table below compares Potomac to the other 1,367 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2015 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 # 815 40th
Population Density1 # 513 63rd
Diversity Index2 # 873 36th
Median Household Income # 664 51st
Per Capita Income # 792 42nd

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