| City: | Hartsville, South Carolina |
| County: | Darlington County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:09:17 PM |
| Population: | No Population Data |
| Area Codes: | 843 / 854 |
| Classification: | PO Box |
| Coordinates: | 34.3736, -80.0738 |
| Quick Link: |
ZIP code 29551 in Hartsville, South Carolina operates as a downtown post office location within the larger 29550 ZIP code. It doesn't have its own geographic territory or residential population. Instead, it exists as a point location serving 558 PO Boxes and 263 business addresses. The post office sits on S 4th Street, where all 170 street-type ZIP+4 records point to the same location using unit designators.
Hartsville's main ZIP code is 29550, which surrounds and contains 29551. Residents who want a PO Box in downtown Hartsville use 29551, while those with street delivery use 29550. This split-ZIP arrangement isn't unusual for small cities in South Carolina. The 16 business establishments and 84 employees in 29551's records show this ZIP serves local commerce alongside mail pickup. Since this isn't a PO Box Only Zone, customers have the choice between PO Box service here or street delivery through the sibling ZIP.
All street records point to a single location on S 4th Street, which is the post office's physical address used for PO Box Street Addressing.
ZIP Code 29551 supports both business and residential activity. According to the Business Census (2024), there are 17 business establishments, employing about 98 people with an annual payroll of $5,859,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,641Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 17Source: CBP |
| 1st Quarter Payroll: | $1,416,000Source: CBP |
| Annual Payroll: | $5,859,000Source: CBP |
| # of Employees: | 98Source: CBP |
ZIP Code 29551 is located in Darlington County, South Carolina, within the Florence, SC Metropolitan Statistical Area (CBSA 22500) and South Carolina's 7th Congressional District. This Metro area has a population of 205,566 people, about 0.00% of whom live in ZIP Code 29551. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Florence, SCSource: Census |
| CBSA Number: | 22500Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 205,566Source: Census |
| MSA: | Source: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 07Source: USPS |
| Congressional Land Area: | 5354.62 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4532560Source: Census |
| Place Name: | Hartsville city; South CarolinaSource: Census |
We could not locate which school district 29551 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.