Seneca, SC Profile: Facts, Map & Data


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Seneca, South Carolina - Basic Facts

The City of Seneca had a population of 8,257 as of July 1, 2015.

The primary coordinate point for Seneca is located at latitude 34.6811 and longitude -82.9656 in Oconee County. The formal boundaries for the City of Seneca (see map below) encompass a land area of 7.86 sq. miles and a water area of 0.05 sq. miles. Oconee County is in the Eastern time zone (GMT -5). The elevation is 951 feet.

The City of Seneca (GNIS ID: 2405444) 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 Seneca 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 Seneca: Seneca City.

City of Seneca, SC Boundary Map


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Boundary Maps: Seneca Division | Oconee County | South Carolina Counties

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Seneca, SC Data & Demographics (As of July 1, 2015)


Total Population 8,257
Population in Households 8,079
Population in Familes 6,330
Population in Group Qrtrs 178
Population Density1 1,093
Diversity Index2 53


Total Households 3,588
Average Household Size 2.25
Family Households 2,262
Average Family Size 3


Total Housing Units 4,229 (100%)
Owner Occupied HU 2,086 (49.3%)
Renter Occupied HU 1,502 (35.5%)
Vacant Housing Units 641 (15.2%)
Median Home Value $143,829
Average Home Value $198,022


Median Household Income $38,100
Average Household Income $52,892
Per Capita Income $22,333
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.36% 0.43%
Households 0.41% 0.44%
Families 0.95% 0.33%
Median Household Income   3.04%
Per Capita Income   2.47%
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.


Seneca, SC - Peer Comparisons by Rank and Percentile

The table below compares Seneca to the other 395 incorporated cities, towns and CDPs in South Carolina 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 # 67 83rd
Population Density1 # 104 74th
Diversity Index2 # 173 56th
Median Household Income # 170 57th
Per Capita Income # 106 73rd

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