Which ZIP code in Dorchester County has the fastest population growth?

29456 (Ladson), at 31.4%, 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.

Fastest-growing ZIP codes in Dorchester County, SC

These are the 13 ZIP codes in Dorchester County with the fastest population growth, out of 13 with at least 1,000 residents. 29456 (Ladson, 31.4%), 29472 (Ridgeville, 26.1%) and 29418 (North Charleston, 21.4%) 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.

Fastest-growing ZIP codes in Dorchester County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	29456	Ladson	31.4%	41,214	15,666	17,379
2	29472	Ridgeville	26.1%	12,722	3,917	4,291
3	29418	North Charleston	21.4%	26,052	11,134	12,100
4	29470	Ravenel	20.4%	5,639	2,089	2,687
5	29414	Charleston	10.0%	44,727	19,322	22,728
6	29477	Saint George	4.8%	7,176	2,987	3,067
7	29420	North Charleston	3.5%	23,959	9,515	10,815
8	29485	Summerville	-2.5%	58,507	22,107	27,903
9	29448	Harleyville	-2.7%	1,997	844	1,065
10	29426	Adams Run	-7.1%	1,697	742	699
11	29471	Reevesville	-23.3%	1,135	516	659
12	29437	Dorchester	-29.3%	2,281	861	1,118
13	29483	Summerville	-32.2%	59,186	22,195	26,002

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 13 of 13 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 52,128 households, on 72 carrier routes with 59,185 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 fastest population growth?: 29456 (Ladson), at 31.4%, among 13 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.