Charleston ZIP codes: US ZIP code list for Charleston, South Carolina (SC)
Quick answer
Charleston, South Carolina has 7 US ZIP codes, running 29401 to 29492 inside Charleston County. Each carries the same 9% combined sales tax rate. ZIP boundaries are postal delivery routes, not tax boundaries — a code that crosses a city or district line can hold more than one rate, so destination-based sellers should validate by full street address.
- ZIP codes
- 7Median covered metro: 12
- Number span
- 9229401 to 29492
- Sorting prefixes
- 294USPS sectional centers
- Sales tax
- 9%Same in every listed code
Charleston ZIP code footprint
How Charleston's ZIP footprint compares with national norms.
7 ZIP codes are listed for Charleston, covering a population of 155,369. They span 92 numbers, 29401 through 29492. The median covered metro on this site lists 12 codes; Charleston ranks 78 of 94 by count. Large metros carry more codes because USPS splits a delivery area once carrier volume outgrows one route cluster, not because the city is geographically bigger.
All 7 codes share the 294 prefix. That first trio is the sectional center facility — the USPS plant that sorts mail for the region — so every piece addressed to Charleston passes through one facility. The range runs 29401 to 29492.
ZIP boundaries are carrier routes, not city limits. USPS redraws them when delivery volume shifts; South Carolina redraws tax and municipal lines on a different schedule entirely. A Charleston mailing address does not prove an address sits inside Charleston city limits, and a single code can straddle the boundary.
ZIP codes in Charleston
All within Charleston County, South Carolina.
Why ZIP-based rate lookup is unreliable
USPS redraws ZIP codes when carrier routes change. Tax jurisdictions move with annexations, county lines and voter-approved districts. The two never line up. In South Carolina, local jurisdictions set their own increments, so remote sellers should validate the full delivery address against the South Carolina Department of Revenue lookup at the time of sale.
Frequently asked questions
Common questions about this area.
- How many ZIP codes does Charleston have?
- 7. They run from 29401 to 29492 across 1 sectional center prefix (294), spanning 92 numbers.
- What is the first ZIP code in Charleston, SC?
- 29401 is the lowest-numbered code serving Charleston. Numbering runs roughly northeast to west nationally, so Charleston's 294 prefix reflects its position in the South Carolina sorting network, not its size.
- Do all Charleston ZIP codes have the same sales tax rate?
- Inside Charleston city limits, yes — 9% applies. A code that extends past the city line can carry a different rate on part of its territory. Validate by street address, not ZIP, when the sale is destination-based. Confirm current rates with your state revenue agency before filing.
Charleston sales tax breakdown and calculator
More Charleston data
Other Charleston datasets on this site.
- Charleston population and income
- Charleston sales tax rate
- Charleston property tax
- Charleston cost of living
- Charleston home values and rent
- Charleston crime rates
- Charleston public schools
- Charleston weather normals
- Charleston commute times
Statewide: South Carolina cities · South Carolina ZIP codes · South Carolina sales tax · South Carolina counties