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 — STATE/SC/COUNTY/CALHOUN

Calhoun County, SC ZIP codes

Calhoun County, SC has 2 ZIP codes, in 2 towns: 29135 and 29030. 3 more cross into it from neighbouring counties: 29053, 29160 and 29047.

The county seat is St. Matthews.

ZIP codes
2
Partly in it
3 more
Towns
2
County seat
St. Matthews
County FIPS
45017
Population
14,182
Median household income
$58,682
Land area
381 sq mi
Metro area
Columbia

Calhoun County ZIP codes by town

St. Matthews (county seat)
29135

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Calhoun County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Calhoun County.

Map of Calhoun County ZIP codes

2903029135

The ZIP codes of Calhoun County, 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.

Calhoun County in numbers

About 14,182 people live in Calhoun County, in 6,179 households, the 43rd most populous of South Carolina's 46 counties. The median household income is $58,682 a year, 15% below the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $172,100 (34% below the South Carolina median), and median gross rent is $1,052 a month. The median age is 47.0; 24.5% of adults 25 and over hold a bachelor's degree or higher (32.1% across South Carolina); the average commute takes 26 minutes.

Population14,182Calhoun14,182
Households6,179Calhoun6,179
Median age47.0Calhoun47.0South Carolina40.2US 38.9
Median household income$58,682Calhoun$58,682South Carolina$69,324US $80,734
Median home value$172,100Calhoun$172,100South Carolina$259,000US $332,700
Median gross rent$1,052Calhoun$1,052South Carolina$1,180US $1,413
Bachelor's degree or higher24.5%Calhoun24.5%South Carolina32.1%US 35.7%
Mean commute26.4 minCalhoun26.4 minSouth Carolina25.6 minUS 26.4 min
Population density37 / sq miCalhoun37 / sq mi

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

Largest towns in Calhoun County

Largest towns in Calhoun County
TownZIP codesPopulation
St. Matthews 1 1,645
Cameron 1 427

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Calhoun County.

Not sure you are in Calhoun County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Calhoun County, with figures

ZIP codes in Calhoun County
ZIP City Type Population Median income Median home
29030 Cameron , SC Standard 2,045 $80,313 $198,600
29135 Saint Matthews , SC Standard 8,294 $49,396 $167,100

Cite this page

zipcodes.pro. “Calhoun County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/sc/county/calhoun

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