City

Duncan, SC

1 ZIP code  ·  Spartanburg County  ·  South Carolina

👥18,260Population
💰$76,595Median HH Income≈ Avg
🎂35.6Median Age
🏠$267,300Median Home Value≈ Avg
🎓45.5%College Grads▲ 17% above avg
📊2.4%Unemployment▼ 51% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 47.1% Female 52.9% ♀

Race & Ethnicity

White: 64.3%Hispanic: 9.3%Black: 21.9%Asian: 2.2%Other: 2.1%Race
White64.3%
Hispanic9.3%
Black21.9%
Asian2.2%
Other2.1%

Age Breakdown

Under 5
6%
5–17
20%
18–24
6%
25–44
34%
45–64
23%
65+
6%

Key Indicators

Median Age35.6 yrs
Avg HH Size2.67
Below Poverty9.6% ≈ Avg
College Grads45.5% ▲ 17% above avg
Unemployment2.4% ▼ 51% below avg
No HS Diploma103 (0.9%)
HS Graduate2,967 (24.7%)
Some College946 (7.9%)
Associates2,532 (21.1%)
Bachelors1,241 (10.3%)
Graduate Degree4,222 (35.2%)

Education

No HS: 0.9%HS Grad: 24.7%Some College: 7.9%Associates: 21.1%Bachelors: 10.3%Graduate: 35.2%Edu
No HS0.9%
HS Grad24.7%
Some College7.9%
Associates21.1%
Bachelors10.3%
Graduate35.2%
Housing & Income

Housing Tenure

Owner: 74.6%Renter: 25.4%Tenure
Owner74.6%
Renter25.4%

Home Value Distribution

Under $50k
6%
$50k–$100k
4%
$100k–$150k
4%
$150k–$200k
12%
$200k–$300k
34%
$300k–$500k
35%
Over $500k
5%

Financials

Median HH Income$76,595 ≈ Avg
Median Home Value$267,300 ≈ Avg
Home/Income Ratio3.5x (nat avg ~3.5x)
Median Rent$1,221/mo
Total Housing Units7,424
Vacant Units601

Income Distribution

Under $25k
14%
$25k–$50k
12%
$50k–$75k
19%
$75k–$100k
17%
$100k–$150k
18%
$150k–$200k
9%
Over $200k
11%
Employment & Commute

How People Get to Work

Drove Alone
91%
Walked
1%
Work From Home
8%

Commute Time

Under 15 min
25%
15–30 min
40%
30–45 min
22%
Over 45 min
13%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
3%
1960s–1970s
3%
1980s–1990s
21%
2000+
71%
About Duncan, SC

Duncan is a city in South Carolina, located in Spartanburg County. The city spans 1 ZIP code and is home to approximately 18,260 residents. It is a relatively young city, with a median age of 35.6 years.

Economically, Duncan is a middle-income community. The median household income of $76,595 is near the national average. Approximately 9.6% of residents live below the poverty line. The unemployment rate is 2.4%, well below the national average.

The real estate market in Duncan is a mid-range housing market. Median home values stand at $267,300, which is near the national average. Renters typically pay around $1,221 per month. Homeownership is high at 74.6%, typical of suburban and family-oriented communities.

The population of Duncan is well-educated. 45.5% of adults hold a bachelor's degree or higher — above the national average. The community is majority White (64.34%).

Duncan, SC offers residents above-average earning potential within South Carolina.

ZIP Codes in Duncan
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
29334 18,260 $76,595 $267,300 $1,221 2.4% 45.5% 74.6%