Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/SC/DUNCAN

Duncan ZIP code, South Carolina

The ZIP code for Duncan, SC is 29334, and its area code is 864.

USPS city name
1 ZIP code
Overlapping the city
3 more
Population
4,310
Area code
864

NANPA lists no telephone rate centre for Duncan itself, so these are the area codes of the nearest one, Lyman (5.9 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Duncan uses the ZIP code above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Duncan in numbers

About 4,310 people live in Duncan, in 1,868 households. The median household income is $52,500 a year, 24% below the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $211,400 (18% below the South Carolina median), and median gross rent is $1,032 a month. The median age is 34.4; 29.5% of adults 25 and over hold a bachelor's degree or higher (32.1% across South Carolina); the average commute takes 28 minutes.

Population4,310Duncan4,310
Households1,868Duncan1,868
Median age34.4Duncan34.4South Carolina40.2US 38.9
Median household income$52,500Duncan$52,500South Carolina$69,324US $80,734
Median home value$211,400Duncan$211,400South Carolina$259,000US $332,700
Median gross rent$1,032Duncan$1,032South Carolina$1,180US $1,413
Bachelor's degree or higher29.5%Duncan29.5%South Carolina32.1%US 35.7%
Mean commute28.1 minDuncan28.1 minSouth Carolina25.6 minUS 26.4 min
Population density651 / sq miDuncan651 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Duncan town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Duncan

ZIP codes with the USPS city name Duncan
ZIP City Type Population Median income Median home
29334 Duncan , SC Standard 18,575 $81,413 $295,100

Other ZIP codes overlapping Duncan

These ZIP codes cover part of Duncan but are addressed as somewhere else.

ZIP codes overlapping Duncan
ZIP City Type Population Median income Median home
29365 Lyman , SC Standard 14,068 $76,966 $261,800
29377 Startex , SC Standard 480 — under $10,000
29651 Greer , SC Standard 56,599 $82,705 $297,300

Map of Duncan ZIP codes

29334

The ZIP codes of Duncan, SC, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Duncan

The nearest larger towns are Lyman (6,547 people, 3.1 mi), Greer (41,536 people, 4.9 mi) and Five Forks (18,656 people, 9.6 mi).

Towns near Duncan
TownPopulationDistance
Lyman 6,547 3.1 mi
Wellford 3,515 3.3 mi
Greer 41,536 4.9 mi
Inman 3,166 8.4 mi
Arcadia 3,426 8.8 mi
Southern Shops 3,797 9.3 mi
Five Forks 18,656 9.6 mi
Taylors 24,505 9.7 mi
Saxon 4,085 10.1 mi
Roebuck 2,902 10.8 mi
Hilltop 2,950 10.9 mi
Valley Falls 8,239 11.1 mi
Wade Hampton 20,898 11.2 mi
Arkwright 2,816 11.7 mi

More nearby: every ZIP code in Spartanburg County · South Carolina ZIP codes

Cite this page

zipcodes.pro. “Duncan, SC ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sc/duncan

Underlying data is public domain or openly licensed — sources, vintages and licences.