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/UNION

Union ZIP code, South Carolina

The ZIP code for Union, SC is 29379, and its area code is 864.

USPS city name
1 ZIP code
Population
8,079
Area code
864

Union in numbers

About 8,079 people live in Union, in 3,904 households. The median household income is $31,914 a year, 54% below the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $109,400 (58% below the South Carolina median), and median gross rent is $832 a month. The median age is 45.5; 15.7% of adults 25 and over hold a bachelor's degree or higher (32.1% across South Carolina); the average commute takes 26 minutes.

Population8,079Union8,079
Households3,904Union3,904
Median age45.5Union45.5South Carolina40.2US 38.9
Median household income$31,914Union$31,914South Carolina$69,324US $80,734
Median home value$109,400Union$109,400South Carolina$259,000US $332,700
Median gross rent$832Union$832South Carolina$1,180US $1,413
Bachelor's degree or higher15.7%Union15.7%South Carolina32.1%US 35.7%
Mean commute25.7 minUnion25.7 minSouth Carolina25.6 minUS 26.4 min
Population density990 / sq miUnion990 / sq mi

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

ZIP codes addressed as Union

ZIP codes with the USPS city name Union
ZIP City Type Population Median income Median home
29379 Union , SC Standard 17,607 $40,879 $109,900

Map of Union ZIP codes

29379

The ZIP codes of Union, 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 Union

The nearest larger towns are Spartanburg (38,910 people, 23 mi), Gaffney (12,596 people, 24 mi) and Laurens (9,336 people, 27 mi).

Towns near Union
TownPopulationDistance
Clinton 7,676 21.9 mi
Roebuck 2,902 22.0 mi
Arkwright 2,816 22.2 mi
Spartanburg 38,910 22.9 mi
Chester 5,218 23.4 mi
Woodruff 4,538 23.5 mi
Gaffney 12,596 24.3 mi
Whitney 3,685 24.6 mi
East Gaffney 2,824 25.0 mi
Saxon 4,085 25.5 mi
Hilltop 2,950 25.7 mi
Arcadia 3,426 26.5 mi
Laurens 9,336 27.2 mi
Southern Shops 3,797 27.4 mi

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

Cite this page

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

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