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County ZIP codes · South Carolina · FIPS 45017

Calhoun County, SC ZIP Codes

Calhoun County, South Carolina has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 2 of the residential ones lie mainly in Calhoun County and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $48,571 in 29047 (Elloree) to $64,167 in 29118 (Orangeburg) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Calhoun County?

29030 · Cameron: $80k29047 · Elloree: $49k29053 · Gaston: $57k29112 · North: $50k29118 · Orangeburg: $64k29135 · Saint Matthews: $49k29160 · Swansea: $62k2916029135290302911229053291182904729030 · Cameron: $80k29047 · Elloree: $49k29053 · Gaston: $57k29112 · North: $50k29118 · Orangeburg: $64k29135 · Saint Matthews: $49k29160 · Swansea: $62k2916029135290302911229053291182904729030 · Cameron: $80k29047 · Elloree: $49k29053 · Gaston: $57k29112 · North: $50k29118 · Orangeburg: $64k29135 · Saint Matthews: $49k29160 · Swansea: $62k29160291352903029112290532911829047
The residential ZIP codes of Calhoun County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $49,396 and $61,964.

They carry 7 postal town names: Gaston, Orangeburg, Saint Matthews, Swansea, North, Elloree, Cameron.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 7 residential ZIP codes in Calhoun County

2 ZIP codes lie mainly in Calhoun County; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Calhoun County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
29135 Saint Matthews 8,294 43 $49k $167k 99%
29030 Cameron 2,045 22 $80k $199k 79%

Partly in Calhoun County

Residential ZIP codes mainly in another county that reach at least 1% into Calhoun County, by their share here
In this county
29047 Elloree 3,537 55 $49k $190k 48%
29160 Swansea 7,419 63 $62k $148k 38%
29053 Gaston 21,076 262 $57k $126k 29%
29112 North 3,847 32 $50k $92k 9%
29118 Orangeburg 15,135 198 $64k $177k 7%

Download the 7 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

7 ZIP codes of Calhoun County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Calhoun County and in the neighboring counties
ZIPIn CalhounElsewhere
2905329%Lexington County71%
291187%Orangeburg County93%
2913599%Orangeburg County1%
2916038%Lexington County62%
291129%Orangeburg County88%; Lexington County3%
2904748%Orangeburg County52%
2903079%Orangeburg County21%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Calhoun County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Calhoun County's ZIP codes use 2 prefixes: 290 and 291.

Three-digit prefixes of Calhoun County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Calhoun County's
PrefixSectional centerHereAll codes
290Columbia, SC (SCF 290)353
291Columbia, SC (SCF 290)453

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.