County ZIP codes · South Carolina · FIPS 45085
Sumter County, SC ZIP Codes
Sumter County, South Carolina has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 15 residential and 1 for PO boxes or a single organization. 9 of the residential ones lie mainly in Sumter County and 6 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $43,571 in 29128 (Rembert) to $67,096 in 29104 (Mayesville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Sumter County?
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 $43,911 and $62,778.
They carry 13 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 15 residential ZIP codes in Sumter County
9 ZIP codes lie mainly in Sumter County; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 29150 | Sumter | 38,538 | 878 | $51k | $170k | 100% |
| 29154 | Sumter | 29,454 | 276 | $63k | $191k | 100% |
| 29153 | Sumter | 14,434 | 100 | $60k | $126k | 87% |
| 29040 | Dalzell | 8,920 | 164 | $66k | $162k | 61% |
| 29128 | Rembert | 4,460 | 42 | $44k | $100k | 65% |
| 29168 | Wedgefield | 2,903 | 37 | $44k | $35k | 100% |
| 29125 | Pinewood | 2,861 | 25 | $63k | $118k | 52% |
| 29152 | Shaw Afb | 1,967 | 386 | $74k | – | 100% |
| 29062 | Horatio | 10 | 1 | – | – | 100% |
Partly in Sumter County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 29104 | Mayesville | 1,732 | 26 | $67k | $158k | 48% |
| 29051 | Gable | 758 | 19 | $71k | $180k | 47% |
| 29080 | Lynchburg | 2,601 | 20 | $37k | $105k | 44% |
| 29114 | Olanta | 1,786 | 52 | $57k | $116k | 39% |
| 29001 | Alcolu | 2,339 | 33 | $65k | $156k | 11% |
| 29162 | Turbeville | 3,776 | 112 | $62k | $112k | 3% |
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?
10 ZIP codes of Sumter County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Sumter | Elsewhere |
|---|---|---|
| 29153 | 87% | Lee County 13% |
| 29040 | 61% | Lee County 39% |
| 29128 | 65% | Kershaw County 24%; Lee County 12% |
| 29162 | 3% | Clarendon County 97% |
| 29125 | 52% | Clarendon County 48% |
| 29080 | 44% | Lee County 56% |
| 29001 | 11% | Clarendon County 89% |
| 29114 | 39% | Florence County 59%; Clarendon County 2% |
| 29104 | 48% | Lee County 52% |
| 29051 | 47% | Clarendon County 53% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 29151 | Sumter |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Sumter County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Sumter County's ZIP codes use 2 prefixes: 290 and 291.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.