Duncan is a town in Spartanburg County, South Carolina, home to about 4,310 people across 5.2 square miles. It has no ZIP code of its own: it’s part of 29334, 29365 and 29377.
Homes sold for a median of $166 per square foot across 3 ZIP codes in the three months ending August 2026, and 1 of 3 were seller’s markets.
Part is in Duncan, part in Reidville and Lyman
Mostly Lyman; part is in Duncan
Mostly Startex; part is in Duncan
Each card is that ZIP code’s whole market, including any part outside Duncan. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Duncan’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Charlotte Douglas International Airport (CLT)70 miles away |
|---|---|
| Closer regional airport | Greenville-Spartanburg International Airport (GSP)6 miles away |
| Nearest city of 250,000+ | Charlotte, NC76 miles away |
| Nearest city of 1 million+ | Philadelphia, PA520 miles away |
Straight-line distances from the center of Duncan; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Duncan had 4,041 residents in the 2020 census, up 41% since 2000.
It’s the 113th largest of 474 towns in South Carolina by population.
Spartanburg County grew from 65,560 residents in 1900 to 327,997 in 2020.
Spartanburg County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 32°F. About 49.6 inches of rain and melted snow fall in a typical year, with about 4 inches of snow.
Source: NOAA 1991–2020 climate normals, Greer, SC weather station (6 miles away).
150,332 jobs at 7,399 businesses in Spartanburg County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
99 doctors and other health care providers list an office in Duncan’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 10 |
|---|---|
| Specialist doctors | 3 |
| Dentists | 12 |
| Nurse practitioners and physician assistants | 15 |
| Mental health providers | 25 |
| Physical and occupational therapists | 17 |
| Optometrists | 1 |
| Chiropractors | 16 |
| Pharmacies | 9 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores (1 nearby)
Pharmacies
Libraries (1 nearby)
Museums
Theaters and performance venues (1 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Spartanburg 05. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Abner Creek AcademyDuncan | Pre-K–5 | 807 | Public | 4.2 mi |
| Berry Shoals ElementaryDuncan | Pre-K–5 | 476 | Public | 3.4 mi |
| Duncan Elementary School of the ArtsDuncan | Pre-K–5 | 670 | Public | 0.5 mi |
| Lyman ElementaryLyman | Pre-K–5 | 750 | Public | 4.2 mi |
| Tyger River ElementaryDuncan | Pre-K–5 | 473 | Public | 2.5 mi |
| Beech Springs MiddleDuncan | 6–8 | 584 | Public | 0.2 mi |
| D. R. Hill MiddleLyman | 6–8 | 562 | Public | 4.4 mi |
| Florence Chapel MiddleDuncan | 6–8 | 781 | Public | 3.5 mi |
| James Byrnes Freshman AcademyDuncan | 9 | 792 | Public | 0.4 mi |
| James F. Byrnes HighDuncan | 9–12 | 2,391 | Public | 0.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Lyman, Reidville, Greer, Startex and Wellford.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.