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/BUFFALO

Buffalo ZIP code, South Carolina

The ZIP code for Buffalo, SC is 29321, and its area code is 864.

USPS city name
1 ZIP code
Population
1,329
Area code
864

NANPA lists no telephone rate centre for Buffalo itself, so these are the area codes of the nearest one, Union (8.1 miles). A town on an area-code boundary can differ from its neighbour.

Buffalo in numbers

About 1,329 people live in Buffalo, in 531 households. The median household income is $21,614 a year, 69% below the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $46,400 (82% below the South Carolina median). The median age is 30.8; 8.3% of adults 25 and over hold a bachelor's degree or higher (32.1% across South Carolina); the average commute takes 34 minutes.

Population1,329Buffalo1,329
Households531Buffalo531
Median age30.8Buffalo30.8South Carolina40.2US 38.9
Median household income$21,614Buffalo$21,614South Carolina$69,324US $80,734
Median home value$46,400Buffalo$46,400South Carolina$259,000US $332,700
Bachelor's degree or higher8.3%Buffalo8.3%South Carolina32.1%US 35.7%
Mean commute34.2 minBuffalo34.2 minSouth Carolina25.6 minUS 26.4 min
Population density330 / sq miBuffalo330 / sq mi

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

ZIP codes addressed as Buffalo

ZIP codes with the USPS city name Buffalo
ZIP City Type Population Median income Median home
29321 Buffalo , SC Standard 3,236 $34,464 $60,000

Map of Buffalo ZIP codes

29321

The ZIP codes of Buffalo, 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 Buffalo

The nearest larger towns are Union (8,079 people, 3.4 mi), Monarch Mill (1,822 people, 5.7 mi) and Pacolet (2,419 people, 13 mi).

Towns near Buffalo
TownPopulationDistance
Union 8,079 3.4 mi
Roebuck 2,902 19.1 mi
Arkwright 2,816 19.5 mi
Clinton 7,676 20.0 mi
Woodruff 4,538 20.1 mi
Spartanburg 38,910 20.5 mi
Whitney 3,685 22.4 mi
Saxon 4,085 23.0 mi
Hilltop 2,950 23.3 mi
Arcadia 3,426 24.0 mi
Gaffney 12,596 24.2 mi
Laurens 9,336 24.5 mi
Southern Shops 3,797 24.9 mi
East Gaffney 2,824 25.2 mi

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

Cite this page

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

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