Which ZIP code in Dorchester County has the lowest median age?

29456 (Ladson), at 31.9 (±1.3), among 13 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.

Youngest ZIP codes in Dorchester County, SC

These are the 13 ZIP codes in Dorchester County with the lowest median age, out of 13 with at least 1,000 residents. 29456 (Ladson, 31.9), 29420 (North Charleston, 34.7) and 29483 (Summerville, 37.4) lead the list. There is no single "best" ZIP code in Dorchester County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Dorchester County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	29456	Ladson	31.9 ±1.3	41,214	15,666	17,379
2	29420	North Charleston	34.7 ±2.5	23,959	9,515	10,815
3	29483	Summerville	37.4 ±1.0	59,186	22,195	26,002
4	29418	North Charleston	38.0 ±4.8	26,052	11,134	12,100
5	29485	Summerville	38.1 ±1.1	58,507	22,107	27,903
6	29414	Charleston	38.1 ±1.6	44,727	19,322	22,728
7	29472	Ridgeville	39.7 ±1.9	12,722	3,917	4,291
8	29471	Reevesville	41.2 ±13.4	1,135	516	659
9	29470	Ravenel	41.7 ±4.1	5,639	2,089	2,687
10	29437	Dorchester	42.6 ±5.5	2,281	861	1,118
11	29477	Saint George	45.3 ±5.8	7,176	2,987	3,067
12	29426	Adams Run	46.8 ±8.4	1,697	742	699
13	29448	Harleyville	48.1 ±7.9	1,997	844	1,065

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 13 of 13 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 80,617 households, on 123 carrier routes with 94,199 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 29456 on the EDDM route map

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Frequently asked questions

Which ZIP code in Dorchester County has the lowest median age?: 29456 (Ladson), at 31.9 (±1.3), among 13 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, lowest 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.