Seneca, SC ZIP Codes
2 ZIP codes serve Seneca, South Carolina: 29678 and 29672. Together they are home to 36,517 residents in 15,933 households. That is more than the 8,993 people counted inside Seneca city limits, because these ZIP codes reach past its boundary. Median household income ranges from $52,550 in 29678 to $90,650 in 29672.
Seneca city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 8,993 |
| Households | 4,082 |
| Median household income | $52,022 |
| Median home value | $240,000 |
| Median age | 39.6 |
| Median rent | $807 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 36,517 |
| Households (sum of ZIP codes) | 15,933 |
| Median household income, range across ZIP codes | $52,550 (29678) to $90,650 (29672) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $65,795 |
| Homeowners | 70.3% |
| Households with kids under 18 | 27.7% |
| Moved in the past year | 14.3% |
| Carrier routes in EDDM2GO's route library | 28 routes, 19,336 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Seneca: 29672 ($90,650)
- Most residents: 29678 (23,767 people)
- Highest homeownership: 29672 (83.9% own their home)
- Most households with kids: 29678 (29.5% of households)
- Most new movers: 29678 (18.3% moved in last year)
- Youngest median age: 29678 (38.4 years)
- Highest median home value: 29672 ($482,100)
Every ZIP code in Seneca
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 29678 | Seneca | 23,767 | 10,394 | $52,550 | $225,500 | 63.1% | 29.5% | 18.3% | 16 | 13,111 | 8% of its land; mailing city |
| 29672 | Seneca | 12,750 | 5,539 | $90,650 | $482,100 | 83.9% | 24.2% | 6.9% | 12 | 7,333 | 4% of its land; mailing city |
A ZIP code is listed for Seneca when at least 10% of its land lies inside Seneca city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Seneca. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Seneca.
Counties
- Oconee County — 12 ZIP codes
Price a mailing to Seneca ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Seneca, SC?
- 29678 and 29672. A ZIP code is listed for Seneca when at least 10% of its land lies inside Seneca city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Seneca.
- What is the population of Seneca, SC?
- The Census Bureau counts 8,993 residents inside Seneca city limits (ACS 2020–2024). The 2 ZIP codes that serve Seneca hold 36,517 residents in all.
- What is the median household income in Seneca, SC?
- $52,022 inside Seneca city limits, per the Census Bureau. Across its ZIP codes the medians run from $52,550 to $90,650.
- Which Seneca ZIP code has the highest median household income?
- 29672, at $90,650, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Seneca, SC?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 28 carrier routes reaching 19,336 residential and 1,103 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.