Duncan, SC Profile: Facts & Data

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Duncan, South Carolina - Basic Facts

The Town of Duncan had a population of 4,516 as of July 1, 2023. Duncan ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in South Carolina. See peer rankings below.

The primary coordinate point for Duncan is located at latitude 34.9379 and longitude -82.1451 in Spartanburg County. The formal boundaries for the Town of Duncan encompass a land area of 4.69 sq. miles and a water area of 0.1 sq. miles. Spartanburg County is in the Eastern time zone (GMT -5).

The Town of Duncan 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 Duncan is located within Wellford Division of Spartanburg County.


Jump to... (On This Page!)
  1. Duncan 2023 Demographic Data
  2. Growth Rates for Duncan (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. South Carolina Research Tools (Easy Tools & Current Data)
  3. South Carolina Data Comparison Tool - 2023 Demographics
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Duncan, SC Data & Demographics (As of July 1, 2023)

POPULATION

Total Population 4,516 (100%)
Population in Households 4,493 (99.5%)
Population in Families 3,791 (83.9%)
Population in Group Quarters1 23 ( 0.5%)
Population Density 834
Diversity Index2 69
 
 

INCOME

Median Household Income $51,193
Average Household Income $63,087
% of Income for Mortgage4 21%
Per Capita Income $24,913
Wealth Index5 43
Socioeconomic Status Index6 Low (39.7)
 

HOUSING

Total HU (Housing Units) 1,916 (100%)
Owner Occupied HU 1,019 (53.2%)
Renter Occupied HU 764 (39.9%)
Vacant Housing Units 133 ( 6.9%)
Median Home Value $179,227
Average Home Value $193,891
Housing Affordability Index3 121
 

HOUSEHOLDS

Total Households 1,783
Average Household Size 2.52
Family Households 1,248
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

2020-2023 2023-2028
Population 1.86% 1.21%
Households 1.81% 1.26%
Families   1.36%
Median Household Income   0.91%
Per Capita Income   2.22%
Owner Occupied HU   2.38%

Duncan, SC - Peer Comparisons by Rank and Percentile

The table below compares Duncan to the other 475 incorporated cities, towns and CDPs in South Carolina by rank and percentile using July 1, 2023 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 # 108 77th
Population Density # 173 64th
Median Household Income # 210 56th
Housing Affordability Index # 221 47th
Per Capita Income # 310 35th
Diversity Index # 39 92nd

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

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