Johnston City, IL Profile: Facts & Data

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Johnston City, Illinois - Basic Facts

The City of Johnston City had a population of 3,545 as of July 1, 2018.

The primary coordinate point for Johnston City is located at latitude 37.8206 and longitude -88.9284 in Williamson County. The formal boundaries for the City of Johnston City (see map below) encompass a land area of 2.09 sq. miles and a water area of 0.06 sq. miles. Williamson County is in the Central time zone (GMT -6). The elevation is 433 feet.

The City of Johnston City (GNIS ID: 2395475) 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 Johnston City is located within Herrin Election Precinct, a minor civil division (MCD) of Williamson County.


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  1. Johnston City 2018 Demographic Data
  2. Growth Rates for Johnston City (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.


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

POPULATION

Total Population 3,545
Population in Households 3,538
Population in Familes 2,786
Population in Group Qrtrs 7
Population Density2 1,698
Diversity Index3 9
 

INCOME

Median Household Income $36,243
Average Household Income $45,702
Per Capita Income $19,587

HOUSING

Total Housing Units 1,717 (100%)
Owner Occupied HU 1,009 (58.8%)
Renter Occupied HU 500 (29.1%)
Vacant Housing Units 208 (12.1%)
Median Home Value $67,157
Average Home Value $67,716
 

HOUSEHOLDS

Total Households 1,509
Average Household Size 2.34
Family Households 964
Average Family Size 3
NOTES
  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.

GROWTH RATE / YEAR

2010-2018 2018-2023
Population -0.02% 0.07%
Households -0.02% 0.11%
Families -0.13% -0.06%
Median Household Income   0.83%
Per Capita Income   2.33%

Johnston City, IL - Peer Comparisons by Rank and Percentile

The table below compares Johnston City 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 # 403 71st
Population Density # 377 73rd
Diversity Index # 924 33rd
Median Household Income # 1306 5th
Per Capita Income # 1303 5th

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

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