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

29456 (Ladson), at 31.4%, among 25 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 Charleston County, SC

These are the 25 ZIP codes in Charleston County with the fastest population growth, out of 25 with at least 1,000 residents. 29456 (Ladson, 31.4%), 29455 (Johns Island, 22.2%) and 29418 (North Charleston, 21.4%) 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.

Fastest-growing ZIP codes in Charleston County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	29456	Ladson	31.4%	41,214	15,666	17,379
2	29455	Johns Island	22.2%	27,576	12,249	—
3	29418	North Charleston	21.4%	26,052	11,134	12,100
4	29470	Ravenel	20.4%	5,639	2,089	2,687
5	29438	Edisto Island	16.6%	2,826	1,501	1,951
6	29429	Awendaw	15.9%	4,479	1,733	2,063
7	29466	Mount Pleasant	12.5%	44,942	17,281	18,743
8	29414	Charleston	10.0%	44,727	19,322	22,728
9	29404	Charleston Afb	9.0%	2,334	592	543
10	29407	Charleston	5.7%	36,706	16,920	18,120
11	29464	Mount Pleasant	4.2%	53,045	23,963	25,785
12	29401	Charleston	3.6%	9,339	4,186	5,356
13	29420	North Charleston	3.5%	23,959	9,515	10,815
14	29403	Charleston	3.3%	22,533	10,862	12,090
15	29449	Hollywood	-0.6%	8,024	3,220	3,832
16	29451	Isle Of Palms	-2.7%	4,362	2,043	—
17	29412	Charleston	-5.3%	39,256	16,758	19,579
18	29482	Sullivans Island	-5.3%	2,087	798	946
19	29487	Wadmalaw Island	-7.1%	2,703	1,059	1,351
20	29426	Adams Run	-7.1%	1,697	742	699
21	29406	Charleston	-7.6%	32,001	12,979	15,118
22	29405	North Charleston	-12.4%	26,254	11,639	12,718
23	29458	Mc Clellanville	-15.7%	2,505	925	1,020
24	29409	Charleston	-23.0%	2,056	7	—
25	29439	Folly Beach	-52.0%	1,125	531	—

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; 25 of 27 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 42,639 households. 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

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Charleston County has the fastest population growth?: 29456 (Ladson), at 31.4%, among 25 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.