Which ZIP code in North Charleston has the highest median age?

29405 (North Charleston), at 40.2 (±2.0), among 7 ZIP codes with at least 1,000 residents.

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.

Oldest ZIP codes in North Charleston, SC

These are the 7 ZIP codes in North Charleston, SC with the highest median age, out of 7 with at least 1,000 residents. 29405 (North Charleston, 40.2), 29485 (Summerville, 38.1) and 29418 (North Charleston, 38.0) lead the list. There is no single "best" ZIP code in North Charleston; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in North Charleston

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	29405	North Charleston	40.2 ±2.0	26,254	11,639	12,718
2	29485	Summerville	38.1 ±1.1	58,507	22,107	27,903
3	29418	North Charleston	38.0 ±4.8	26,052	11,134	12,100
4	29420	North Charleston	34.7 ±2.5	23,959	9,515	10,815
5	29406	Charleston	32.9 ±2.3	32,001	12,979	15,118
6	29456	Ladson	31.9 ±1.3	41,214	15,666	17,379
7	29404	Charleston Afb	21.2 ±0.7	2,334	592	543

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; 7 of 7 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 67,374 households, on 102 carrier routes with 78,654 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 29405 on the EDDM route map

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Frequently asked questions

Which ZIP code in North Charleston has the highest median age?: 29405 (North Charleston), at 40.2 (±2.0), among 7 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.