Darlington County, SC ZIP codes
There are 7 ZIP codes in Darlington County, SC, in 5 towns, from 29069 to 29593. The largest are 29550 (Hartsville), 29532 (Darlington) and 29540 (Darlington). 1 more crosses into it from a neighbouring county: 29161.
The county seat is Darlington.
- ZIP codes
- 7
- Partly in it
- 1 more
- Towns
- 5
- County seat
- Darlington
- County FIPS
45031- State
- South Carolina
- Population
- 62,558
- Median household income
- $48,581
- Land area
- 561 sq mi
- Metro area
- Florence
Darlington County ZIP codes by town
- Darlington (county seat)
- 29532, 29540
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 Darlington County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Darlington County.
- 29161 Timmonsville · mostly in Florence County
Map of Darlington County ZIP codes
The ZIP codes of Darlington 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.
Darlington County in numbers
About 62,558 people live in Darlington County, in 25,561 households, the 23rd most populous of South Carolina's 46 counties. The median household income is $48,581 a year, 30% below the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $158,200 (39% below the South Carolina median), and median gross rent is $896 a month. The median age is 41.3; 19.9% of adults 25 and over hold a bachelor's degree or higher (32.1% across South Carolina); the average commute takes 23 minutes.
| Population | 62,558 |
|---|---|
| Households | 25,561 |
| Median age | 41.3 |
| Median household income | $48,581 |
| Median home value | $158,200 |
| Median gross rent | $896 |
| Bachelor's degree or higher | 19.9% |
| Mean commute | 22.5 min |
| Population density | 112 / 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 Darlington County
| Town | ZIP codes | Population |
|---|---|---|
| Hartsville | 2 | 7,419 |
| Darlington | 2 | 6,120 |
| Lamar | 1 | 1,196 |
| Society Hill | 1 | 388 |
| Lydia | 1 | 190 |
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 Darlington County.
Not sure you are in Darlington County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Darlington County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
29069 | Lamar , SC | Standard | 4,647 | $48,393 | $132,300 |
29079 | Lydia , SC | Standard | 58 | — | — |
29532 | Darlington , SC | Standard | 19,857 | $44,482 | $148,400 |
29540 | Darlington , SC | Standard | 4,080 | $53,155 | $95,300 |
29550 | Hartsville , SC | Standard | 29,924 | $51,491 | $179,300 |
29551 | Hartsville , SC | No street area | — | — | — |
29593 | Society Hill , SC | Standard | 1,692 | $40,568 | — |
Cite this page
zipcodes.pro. “Darlington County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/sc/county/darlington
Underlying data is public domain or openly licensed — sources, vintages and licences.