Duncan, SC ZIP Codes
2 ZIP codes serve Duncan, South Carolina: 29651 and 29334. Together they are home to 75,174 residents in 28,423 households. That is more than the 4,310 people counted inside Duncan town limits, because these ZIP codes reach past its boundary. Median household income ranges from $81,413 in 29334 to $82,705 in 29651.
Duncan town limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 4,310 |
| Households | 1,868 |
| Median household income | $52,500 |
| Median home value | $211,400 |
| Median age | 34.4 |
| Median rent | $1,032 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 75,174 |
| Households (sum of ZIP codes) | 28,423 |
| Median household income, range across ZIP codes | $81,413 (29334) to $82,705 (29651) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $82,377 |
| Homeowners | 79.4% |
| Households with kids under 18 | 34.9% |
| Moved in the past year | 12.6% |
| Carrier routes in EDDM2GO's route library | 47 routes, 33,676 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Duncan: 29651 ($82,705)
- Most residents: 29651 (56,599 people)
- Highest homeownership: 29651 (80.8% own their home)
- Most households with kids: 29334 (36.2% of households)
- Most new movers: 29334 (13.4% moved in last year)
- Youngest median age: 29334 (36.2 years)
- Highest median home value: 29651 ($297,300)
Every ZIP code in Duncan
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 29651 | Greer | 56,599 | 21,197 | $82,705 | $297,300 | 80.8% | 34.5% | 12.4% | 35 | 26,380 | 1% of its land |
| 29334 | Duncan | 18,575 | 7,226 | $81,413 | $295,100 | 75.3% | 36.2% | 13.4% | 12 | 8,890 | 18% of its land; mailing city |
A ZIP code is listed for Duncan when at least 10% of its land lies inside Duncan town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Duncan. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Duncan.
Counties
- Spartanburg County — 33 ZIP codes
- Greenville County — 25 ZIP codes
Nearby cities sharing these ZIP codes
- Greer — 2 ZIP codes
Price a mailing to Duncan ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Duncan, SC?
- 29651 and 29334. A ZIP code is listed for Duncan when at least 10% of its land lies inside Duncan town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Duncan.
- What is the population of Duncan, SC?
- The Census Bureau counts 4,310 residents inside Duncan town limits (ACS 2020–2024). The 2 ZIP codes that serve Duncan hold 75,174 residents in all.
- What is the median household income in Duncan, SC?
- $52,500 inside Duncan town limits, per the Census Bureau. Across its ZIP codes the medians run from $81,413 to $82,705.
- Which Duncan ZIP code has the highest median household income?
- 29651, at $82,705, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Duncan, SC?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 47 carrier routes reaching 33,676 residential and 1,586 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.