Oldest ZIP codes in Charleston County, SC
These are the 25 ZIP codes in Charleston County with the highest median age, out of 26 with at least 1,000 residents. 29438 (Edisto Island, 62.4), 29439 (Folly Beach, 59.7) and 29451 (Isle Of Palms, 54.6) lead the list. There is no single "best" ZIP code in Charleston County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Oldest ZIP codes in Charleston County
| Rank | ZIP | Mailing city | Median age | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 29438 | Edisto Island | 62.4 ±2.3 | 2,826 | 1,501 | 1,951 |
| 2 | 29439 | Folly Beach | 59.7 ±8.1 | 1,125 | 531 | — |
| 3 | 29451 | Isle Of Palms | 54.6 ±3.7 | 4,362 | 2,043 | — |
| 4 | 29449 | Hollywood | 52.6 ±3.3 | 8,024 | 3,220 | 3,832 |
| 5 | 29482 | Sullivans Island | 52.5 ±2.5 | 2,087 | 798 | 946 |
| 6 | 29458 | Mc Clellanville | 51.9 ±11.0 | 2,505 | 925 | 1,020 |
| 7 | 29487 | Wadmalaw Island | 50.2 ±10.7 | 2,703 | 1,059 | 1,351 |
| 8 | 29455 | Johns Island | 49.8 ±3.4 | 27,576 | 12,249 | — |
| 9 | 29429 | Awendaw | 49.8 ±8.2 | 4,479 | 1,733 | 2,063 |
| 10 | 29426 | Adams Run | 46.8 ±8.4 | 1,697 | 742 | 699 |
| 11 | 29466 | Mount Pleasant | 44.2 ±1.3 | 44,942 | 17,281 | 18,743 |
| 12 | 29401 | Charleston | 44.0 ±9.7 | 9,339 | 4,186 | 5,356 |
| 13 | 29464 | Mount Pleasant | 41.8 ±1.4 | 53,045 | 23,963 | 25,785 |
| 14 | 29470 | Ravenel | 41.7 ±4.1 | 5,639 | 2,089 | 2,687 |
| 15 | 29412 | Charleston | 40.7 ±1.3 | 39,256 | 16,758 | 19,579 |
| 16 | 29405 | North Charleston | 40.2 ±2.0 | 26,254 | 11,639 | 12,718 |
| 17 | 29414 | Charleston | 38.1 ±1.6 | 44,727 | 19,322 | 22,728 |
| 18 | 29407 | Charleston | 38.0 ±1.0 | 36,706 | 16,920 | 18,120 |
| 19 | 29418 | North Charleston | 38.0 ±4.8 | 26,052 | 11,134 | 12,100 |
| 20 | 29420 | North Charleston | 34.7 ±2.5 | 23,959 | 9,515 | 10,815 |
| 21 | 29406 | Charleston | 32.9 ±2.3 | 32,001 | 12,979 | 15,118 |
| 22 | 29456 | Ladson | 31.9 ±1.3 | 41,214 | 15,666 | 17,379 |
| 23 | 29403 | Charleston | 30.0 ±1.6 | 22,533 | 10,862 | 12,090 |
| 24 | 29404 | Charleston Afb | 21.2 ±0.7 | 2,334 | 592 | 543 |
| 25 | 29409 | Charleston | 20.0 ±0.7 | 2,056 | 7 | — |
How we ranked them
Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 26 of 27 qualify.
Which of these to mail, and why
Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.
The top five ZIP codes on this list hold 8,093 households. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 29438 on the EDDM route map
More rankings
- Richest ZIP codes in Charleston County
- ZIP codes with the highest home values in Charleston County
- ZIP codes with the highest homeownership in Charleston County
- ZIP codes with the most families with kids in Charleston County
- ZIP codes with the most new movers in Charleston County
- Youngest ZIP codes in Charleston County
- Fastest-growing ZIP codes in Charleston County
- All Charleston County ZIP codes
Businesses that mail these ZIP codes
Map it and price it
EDDM guides
Frequently asked questions
- Which ZIP code in Charleston County has the highest median age?
- 29438 (Edisto Island), at 62.4 (±2.3), among 26 ZIP codes with at least 1,000 residents.
- How is this ranking calculated?
- Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024).
- Why are some ZIP codes missing?
- ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.