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/SENECA

Seneca ZIP codes, South Carolina

Seneca, SC has 3 ZIP codes (29678, 29672 and 29679) and area codes 864 and 821. The largest is 29678.

USPS city name
3 ZIP codes
Population
8,993
Area codes
864, 821

Seneca in numbers

About 8,993 people live in Seneca, in 4,082 households. The median household income is $52,022 a year, 25% below the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $240,000 (7% below the South Carolina median), and median gross rent is $807 a month. The median age is 39.6; 29.1% of adults 25 and over hold a bachelor's degree or higher (32.1% across South Carolina); the average commute takes 16 minutes.

Population8,993Seneca8,993
Households4,082Seneca4,082
Median age39.6Seneca39.6South Carolina40.2US 38.9
Median household income$52,022Seneca$52,022South Carolina$69,324US $80,734
Median home value$240,000Seneca$240,000South Carolina$259,000US $332,700
Median gross rent$807Seneca$807South Carolina$1,180US $1,413
Bachelor's degree or higher29.1%Seneca29.1%South Carolina32.1%US 35.7%
Mean commute16.0 minSeneca16.0 minSouth Carolina25.6 minUS 26.4 min
Population density1,075 / sq miSeneca1,075 / sq mi

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

ZIP codes addressed as Seneca

ZIP codes with the USPS city name Seneca
ZIP City Type Population Median income Median home
29678 Seneca , SC Standard 23,767 $52,550 $225,500
29672 Seneca , SC Standard 12,750 $90,650 $482,100
29679 Seneca , SC No street area — — —

Map of Seneca ZIP codes

296782967229679

The ZIP codes of Seneca, 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 Seneca

The nearest larger towns are Clemson (18,072 people, 8.8 mi), Anderson (30,051 people, 21 mi) and Toccoa, GA (9,238 people, 22 mi).

Towns near Seneca
TownPopulationDistance
Westminster 2,521 7.2 mi
Clemson University 7,015 7.4 mi
Walhalla 4,157 8.0 mi
Clemson 18,072 8.8 mi
Keowee Key 3,351 10.1 mi
Pendleton 3,594 10.9 mi
Central 5,320 11.2 mi
Reed Creek, GA 3,151 16.9 mi
Liberty 3,350 17.1 mi
Centerville 7,049 17.7 mi
Northlake 4,390 17.7 mi
Pickens 3,155 20.2 mi
Anderson 30,051 21.4 mi
Toccoa, GA 9,238 21.7 mi

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

Cite this page

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

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