Johnston, SC Profile: Facts, Map & Data


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Johnston, South Carolina - Basic Facts

The Town of Johnston is an incorporated place (Class Code P1) located in Edgefield County at latitude 33.8334 and longitude -81.8048. Edgefield County is in the Eastern time zone (GMT -5). The elevation is 663 feet.

The formal official name is the Town of Johnston, but most people and references simply refer to it as Johnston, South Carolina.

The P1 Census Class Code for Johnston indicates a populated place that is also an incorporated place with the same name and the same census code. The Incorporated Place has a Functional Status Code "A" which identifies an active government providing primary general-purpose functions.

The formal boundaries for the Town of Johnston (see map below) encompass a land area of 2.65 sq. miles and a water area of 0.09 sq. miles.

Alternate Unofficial Names for Johnston: Johnson, Lotts.

Town of Johnston, SC Boundary Map


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Boundary Maps: Johnston Division | Edgefield County | South Carolina Counties

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Johnston, SC Data & Demographics (As of July 1, 2014)


Total Population 2,316
Population in Households 2,254
Population in Familes 1,824
Population in Group Qrtrs 62
Population Density1 875
Diversity Index2 62


Total Households 944
Average Household Size 2.39
Family Households 623
Average Family Size 3


Total Housing Units 1,093 (100%)
Owner Occupied HU 541 (49.5%)
Renter Occupied HU 404 (37.0%)
Vacant Housing Units 149 (13.6%)
Median Home Value $95,366
Average Home Value $120,526


Median Household Income $29,015
Average Household Income $42,642
Per Capita Income $16,431
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population -0.46% -0.39%
Households -0.25% -0.28%
Families -0.19% -0.42%
Median Household Income   3.44%
Per Capita Income   1.83%
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.


Johnston, SC - Peer Comparisons by Rank and Percentile

The table below compares Johnston to the other 395 incorporated cities, towns and CDPs in South Carolina by rank and percentile using July 1, 2014 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 # 168 58th
Population Density1 # 149 63rd
Diversity Index2 # 34 92nd
Median Household Income # 306 23rd
Per Capita Income # 304 23rd

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