Duncan ZIP Code List — Spartanburg County, SC

There is one unique ZIP code in Duncan, South Carolina and it is 29334. Area code: 864.

ZIP codes

22.97

sq mi land

0.61

sq mi water

864

area code

Duncan, SC ZIP code map

About Duncan, SC

Duncan, South Carolina, is a charming town situated in Spartanburg County. Known for its friendly community and rich southern culture, Duncan offers a small-town atmosphere with easy access to larger metropolitan areas. Residents and visitors alike appreciate the town's historical significance and its convenient location along key transportation routes.

Location & geography

Duncan is strategically located in the northwestern part of South Carolina, nestled conveniently between major cities. Nearby cities include Greer, which is about 10 miles to the north, Spartanburg approximately 15 miles to the west, and the bustling city of Greenville, roughly 20 miles to the southeast. The town itself encompasses a land area of 22.97 square miles, featuring a blend of rolling terrain and urban landscapes, along with a water area of 0.61 square miles.

Community & economy

The character of Duncan is rooted in a close-knit community that values its local traditions and neighbors. The town has a diverse economy that supports various industries, including manufacturing and retail, providing ample employment opportunities. Daily life in Duncan is marked by community events, local parks, and a welcoming environment, making it a great place for families and individuals of all ages.

Transportation

Duncan is accessible via several major highways, including Interstate 85, which connects it to larger cities in both the southeastern and southwestern regions. The nearest airport for commercial flights is Greenville-Spartanburg International Airport, located approximately 15 miles from downtown Duncan. For local transit, residents can rely on personal vehicles or regional bus services.

History

Duncan was founded in the late 19th century and has since grown into a notable hub within Spartanburg County. The town has historically been known for its textile industry, which played a significant role in its early economic development. Notable events in the town's history include the establishment of local parks and community centers, fostering a strong sense of civic pride.

Did you know?

One little-known fact about Duncan is that it was once home to several thriving textile mills, which contributed significantly to the local economy. Additionally, the town's name is derived from a local family that was instrumental in its early development.

ZIP codes for Duncan, SC (1)

ZIP code	City	County	Map
29334	Duncan	Spartanburg	View map

Demographics & statistics

16,964

Population

35.9

Median age

$74,675

Median household income

$36,502

Per capita income

$246,300

Median home value

$1,164

Median monthly rent

73.1%

Home ownership

8.4%

Poverty rate

3.1%

Unemployment

5,024

Housing units

30.5%

Bachelor's or higher

Age distribution

Male Female

406

Under 5

445

470

5–9

514

658

10–14

720

525

15–19

576

474

20–24

520

1,370

25–34

1,500

1,178

35–44

1,291

971

45–54

1,063

677

55–59

742

359

60–64

393

721

65–74

790

216

75–84

236

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,993	23.5%
18 and over	12,971	76.5%
65 and over	2,112	12.4%
Median age	35.9 years

Race & ethnicity

White 64.9%

Black or African American 19.8%

Hispanic or Latino 6.2%

Two or more races 4.3%

Asian 2.5%

Other race 2.4%

Group	Count	%
White	11,725	64.9%
Black or African American	3,583	19.8%
Hispanic or Latino	1,116	6.2%
Two or more races	786	4.3%
Asian	443	2.5%
Other race	427	2.4%

Household income

Under $10k 3.6%

$10k–$15k 1.3%

$15k–$25k 7.6%

$25k–$35k 5.3%

$35k–$50k 11.7%

$50k–$75k 20.6%

$75k–$100k 15.4%

$100k–$150k 15.5%

$150k–$200k 9.2%

$200k+ 9.8%

Range	% of households
Under $10k	3.6%
$10k–$15k	1.3%
$15k–$25k	7.6%
$25k–$35k	5.3%
$35k–$50k	11.7%
$50k–$75k	20.6%
$75k–$100k	15.4%
$100k–$150k	15.5%
$150k–$200k	9.2%
$200k+	9.8%
Median income	$74,675

Housing

Home values

Under $50k 8.2%

$50k–$100k 4.3%

$100k–$150k 5.4%

$150k–$200k 16.3%

$200k–$300k 29.9%

$300k–$500k 31.5%

$500k–$1M 4.1%

$1M+ 0.4%

Housing overview

Metric	Value
Median home value	$246,300
Median rent / month	$1,164
Owner occupied	73.1%
Renter occupied	26.9%
Vacant	8.0%
Single-family detached	74.2%
Large apartment buildings	5.8%
Mobile homes	12.1%
Median rooms	6.2
Avg household size (owned)	2.76

Year built

Era	%
2020 or later	4.9%
2010–2019	28.8%
2000–2009	25.3%
1990–1999	15.9%
1980–1989	5.8%
1970–1979	8.6%
1960–1969	5.2%
1950–1959	2.5%
1940–1949	1.1%
1939 or earlier	1.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.4%
1 bedroom	4.4%
2 bedrooms	16.3%
3 bedrooms	48.5%
4 bedrooms	21.5%
5+ bedrooms	9.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.6%
1 vehicle	24.1%
2 vehicles	45.2%
3 or more	28.0%

Heating fuel

Fuel type	%
Utility gas	36.7%
Electricity	61.8%
Propane / LP gas	0.7%
Fuel oil	0.6%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	3,456	56.3%
Cohabiting couple	536	8.7%
Male householder, no spouse	920	15.0%
Female householder, no spouse	1,228	20.0%
Households with children under 18	2,428	39.5%
Households with seniors (65+)	1,538	25.0%
Average household size	2.76

Marital status

Status	Male	Female
Never married	31.7%	24.8%
Married	54.9%	52.3%
Separated	2.1%	2.9%
Widowed	1.2%	9.4%
Divorced	10.1%	10.6%

Education

Less than 9th grade 3.0%

Some HS, no diploma 4.8%

HS graduate 26.6%

Some college, no degree 25.7%

Associate's degree 9.3%

Bachelor's degree 21.8%

Graduate / professional 8.7%

Metric	%
HS diploma or higher	92.2%
Bachelor's or higher	30.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	72	1.6%
Kindergarten	251	5.6%
Elementary school	1,982	44.5%
High school	1,020	22.9%
College / grad school	1,128	25.3%

Employment

Industry of employment

Manufacturing 21.9%

Education & healthcare 15.5%

Professional & management 14.1%

Retail trade 11.8%

Transportation & utilities 9.0%

Arts, food & hospitality 8.0%

Construction 7.4%

Finance & real estate 4.5%

Other services 2.5%

Public administration 2.1%

Wholesale trade 2.0%

Information 1.0%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	37.2%
Service	11.0%
Sales & office	19.6%
Natural resources & construction	8.8%
Production & transportation	23.4%

Employment type

Type	%
Private sector	88.1%
Government	10.3%
Self-employed	1.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.7%
Carpool	7.7%
Public transit	0.0%
Walk	0.8%
Other means	0.5%
Avg commute (minutes)	23.6

Poverty

All people 8.4%

Under 18 years 13.0%

18 and over 6.9%

Married-couple families 1.2%

Female-led households 16.9%

Income support

Source	% of households
Social Security	27.6%
Retirement income	23.6%
Supplemental Security	5.1%
Cash public assistance	2.3%
Food stamps / SNAP	5.7%

Health indicators

Condition	%
High blood pressure	33.0%
High cholesterol	35.2%
Heart disease	5.2%
Stroke	2.7%
Asthma	9.7%
Arthritis	23.9%
Kidney disease	2.5%
Pulmonary disease	6.1%
Cancer	5.7%

Behavior / access	%
Binge drinking	18.7%
No physical activity	23.8%
Less than 7 hrs sleep	33.2%
Fair or poor health	13.0%
Poor mental health	14.9%
Poor physical health	9.9%
No health insurance	15.8%
Visited doctor (checkup)	77.6%
Visited dentist	68.8%
Cholesterol screening	89.0%
Teeth loss	13.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	792	6.1%

Disability	%
Any disability	14.3%
Under 18	10.4%
18–64 years	11.2%
65 and over	37.6%

Health insurance coverage

Type	%
Private insurance	70.8%
Public insurance	26.7%
Uninsured under 19	5.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	16,113	95.0%
Spanish	636	3.9%
Other Indo-European	344	2.1%
Asian & Pacific Islander	181	1.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	15,282	90.1%
Born in same state	15,207	89.6%
Born in different state	8,418	49.6%
Foreign born	75	0.4%
Naturalized citizen	1,682	9.9%
Not a US citizen	691	41.1%

Ancestry

Ancestry	Count	%
Italian	2,224	13.1%
French	1,784	10.5%
Arab	668	3.9%
English	104	0.6%

Ancestry	Count	%
Dutch	36	0.2%
Polish	27	0.2%
German	17	0.1%
Irish	15	0.1%

Technology access

Metric	% of households
Computer access	36.2%
Internet access	95.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Duncan, SC?

Duncan, SC has one ZIP code: 29334.

What is the main ZIP code for Duncan, SC?

The primary ZIP code for Duncan, SC is 29334. The city uses area code 864 for phone service.

What county is Duncan, SC in?

Duncan is located in Spartanburg County, South Carolina.

How many ZIP codes are in Duncan, SC?

Duncan, SC has 1 ZIP code.

What is the ZIP code for downtown Duncan and the surrounding business district?

Downtown Duncan and the surrounding business district are located in ZIP code 29334, which serves as the primary commercial and civic center for this Spartanburg County community.

What ZIP code should I use for mailing packages to residents in the Duncan area?

All residential and commercial addresses in Duncan, SC use ZIP code 29334, as it is the sole ZIP code serving the entire town.