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CITY

Duncan

South Carolina · 4,675 residents (2025 est.) · 6.269 sq mi
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The short version

Duncan has notably lower household income than the US average, with a median household income of $52,500. The city has grown rapidly, with population up 50% since 2000. Median home value has roughly tripled since 2000, reaching $211,400. At a median age of 34.4, residents skew younger than the country as a whole.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 34.4
US median: 38.9
Less educated
29% hold a bachelor's degree
US average: 36%
Less affordable
home values up 65%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
4,310
+50%since 2000
from 2,870 in 2000
1990 – 2025
Population density
688 / sq mi
+50%since 2000
from 458 / sq mi in 2000
US average: 281
Median age
34.4
+23%since 2000
from 27.9 in 2000
US average: 38.9

PEP 2025 EST:4,675 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
2K3K3K4K5K1990201020202024Duncan
20244K
1990201020202024
Section 02

Income & economy

Median household income
$52,500
+3%inflation adjusted, since 2000
from $27,974 in 2000
US average: $82,259
1990 – 2024
Per capita income
$37,672
+186%since 2000
from $13,194 in 2000
US average: $44,673
Households earning $100K+
35.9%
+23.9 ptssince 2009
from 12.0% in 2009
US average: 53.3%
Poverty rate
12.4%
−7.9 ptssince 2000
from 20.3% in 2000
US average: 12.5%
Income inequality (Gini)
0.477
+16%since 2010
from 0.411 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade27.1%
US avg: 9.9%
Information15.4%
US avg: 10.8%
Wholesale trade3.7%
US avg: 6.9%
Other services3.5%
US avg: 6.7%
Public administration3.5%
US avg: 4.8%
Arts, entertainment, food2.7%
US avg: 1.9%
Finance & insurance2%
US avg: 5.9%
Professional, scientific, technical2%
US avg: 5.1%
Transportation & warehousing1.4%
US avg: 2.2%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$211,400
+65%inflation adjusted, since 2000
from $70,200 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,032
+19%inflation adjusted, since 2000
from $475 in 2000
US average: $1,442
Owner-occupied
56.7%
+10.9 ptssince 2000
from 45.8% in 2000
43.3% rent
Vacancy rate
9.1%
+0.8 ptssince 2009
from 8.3% in 2009
US average: 10.0%
Owner cost-burdened
25.6%
+10.5 ptssince 2009
from 15.1% in 2009
US average: 22.9%
Renter cost-burdened
35.4%
−11.4 ptssince 2009
from 46.8% in 2009
US average: 47.4%
Afford Score
4.0
+60%since 2000
from 2.5 in 2000
1990 – 2024
Gentrification Score
73
RELATED:See current rent listings in Duncan on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic64%(1,837)
Black30.7%(882)
Hispanic / Latino3.4%(98)
Asian0.7%(19)
Other0%
Diversity Score60.3%(1,731)
2024
White, non-Hispanic54%(2,326)
Black32.6%(1,407)
Hispanic / Latino10.3%(443)
Asian0%(0)
Other3.1%(134)
Diversity Score73.8%(3,182)
Diversity Score
74
+22%since 2000
from 60 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
29.5%
+22.2 ptssince 2000
from 7.2% in 2000
US average: 35.6%
High school or higher
89.3%
+20.4 ptssince 2000
from 68.9% in 2000
US average: 89.6%
Graduate degree
7.9%
+6.3 ptssince 2000
from 1.6% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
28.1 min
+137%since 2000
from 11.9 min in 2000
US average: 26.5
Drive alone to work
86.5%
−0.1 ptssince 2009
from 86.5% in 2009
US average: 68.9%
Carpooled to work
12.1%
+7.1 ptssince 2009
from 5.1% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
1.4%
+0.3 ptssince 2009
from 1.1% in 2009
US average: 15.0%
Walked to work
0.0%
−4.6 ptssince 2009
from 4.6% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
1.8%
−7.9 ptssince 2009
from 9.7% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
5.4%
−6.3 ptssince 2011
from 11.7% in 2011
US average: 5.2%
Labor force participation
72.8%
+5.1 ptssince 2011
from 67.7% in 2011
US average: 63.5%
Self-employed
8.8%
+0.8 ptssince 2009
from 8.1% in 2009
US average: 13.1%
Management & professional
39.6%
−20.0 ptssince 2009
from 59.6% in 2009
US average: 42.5%
Section 08

People & community

Male
55.1%
+7.5 ptssince 2009
from 47.5% in 2009
Female
44.9%
−7.5 ptssince 2009
from 52.5% in 2009
Foreign born
8.7%
−2.4 ptssince 2009
from 11.2% in 2009
US average: 14.1%
Veterans
4.2%
−40.2 ptssince 2009
from 44.4% in 2009
US average: 6.2%
With a disability
14.9%
−7.3 ptssince 2012
from 22.2% in 2012
US average: 13.3%
Uninsured
12.9%
−73.5 ptssince 2013
from 86.4% in 2013
US average: 8.4%
Broadband at home
87.0%
+12.0 ptssince 2017
from 75.0% in 2017
US average: 91.0%
English only at home
86.3%
−7.1 ptssince 2016
from 93.4% in 2016
US average: 77.7%
Spanish at home
3.9%
−0.8 ptssince 2016
from 4.7% in 2016
US average: 13.6%
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Frequently asked

How many people live in Duncan, South Carolina?

Duncan, South Carolina has about 4,310 residents according to the 2024 American Community Survey.

What is the median household income in Duncan, South Carolina?

The typical household in Duncan, South Carolina earns about $52,500 a year. Half of households make more than that, and half make less.

Is Duncan, South Carolina expensive?

In Duncan, South Carolina, the median home is worth about $211,400, and the typical rent is about $1,032 a month.

How educated are people in Duncan, South Carolina?

About 29.5% of adults age 25 and over in Duncan, South Carolina hold a bachelor's degree or higher.

What is the poverty rate in Duncan, South Carolina?

About 12.4% of people in Duncan, South Carolina live below the federal poverty line.

Has Duncan, South Carolina grown since 1990?

Yes, Duncan, South Carolina has grown since 1990. The population has added about 2,158 residents, a change of about 100 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →

Duncan, South Carolina: demographics, income & housing data · CensusEasy