Blenheim, SC Profile: Facts, Map & Data


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Blenheim, South Carolina - Basic Facts

The Town of Blenheim had a population of 150 as of July 1, 2017. Blenheim ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in South Carolina. See peer rankings below.

The primary coordinate point for Blenheim is located at latitude 34.5098 and longitude -79.6525 in Marlboro County. The formal boundaries for the Town of Blenheim (see map below) encompass a land area of 0.65 sq. miles and a water area of 0 sq. miles. Marlboro County is in the Eastern time zone (GMT -5). The elevation is 118 feet.

The Town of Blenheim (GNIS ID: 2405279) 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.

South Carolina is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Town of Blenheim is located within Blenheim Division of Marlboro County.

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

Alternate Unofficial Names for Blenheim: Mineral Spring, Spring Hill, Three Creeks.

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Town of Blenheim, SC Boundary Map

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Blenheim, SC Data & Demographics (As of July 1, 2017)


Total Population 150
Daytime Population: Workers 57
Daytime Population: Residents 92
Total Daytime Population (TDP) 149
Ratio TDP/Total Population1 0.99
Population in Households 150
Population in Familes 121
Population in Group Qrtrs 0
Population Density2 230
Diversity Index3 51


Median Household Income $29,904
Average Household Income $42,795
Per Capita Income $17,106


Total Housing Units 76 (100%)
Owner Occupied HU 48 (63.2%)
Renter Occupied HU 17 (22.4%)
Vacant Housing Units 11 (14.5%)
Median Home Value $77,381
Average Home Value $115,816


Total Households 65
Average Household Size 2.31
Family Households 41
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 -0.36% -0.68%
Households -0.42% -0.62%
Families 1.05% -1.0%
Median Household Income   0.08%
Per Capita Income   0.81%

Blenheim, SC - Peer Comparisons by Rank and Percentile

The table below compares Blenheim to the other 396 incorporated cities, towns and CDPs in South Carolina 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 # 363 9th
Population Density # 314 21st
Diversity Index # 203 49th
Median Household Income # 328 17th
Per Capita Income # 313 21st

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

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