What city is 29401 in?

29401 is a Charleston, SC mailing address. By land area, 100% lies inside Charleston.

What is the population of 29401?

About 9,339 people (±820), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,145.

What is the median household income in 29401?

$99,667 (±$26,355), compared with $69,324 for South Carolina as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 29401?

12 USPS carrier routes with 5,356 residential and 1,379 business mailboxes (6,718 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 29401?

The closest, measured center to center: 29424 (0.6 mi, Charleston), 29425 (1.1 mi, Charleston), 29403 (2 mi, Charleston), 29409 (2.1 mi, Charleston), 29407 (4.1 mi, Charleston) and 29412 (4.7 mi, Charleston).

29401 ZIP Code, Charleston, SC

29401 is a ZIP code in Charleston, South Carolina in Charleston County. It covers 1.5 square miles of land. The closest ZIP codes are 29424, 29425 and 29403. 9,339 people live here in 4,186 households. At about 6,084 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (60% own). Median household income is $99,667, above the South Carolina median of $69,324; 24% of residents moved in during the past year.

Quick facts

Mailing city: Charleston, SC
County: Charleston County
Land area: 1.5 sq mi
Population: 9,339
Median household income: $99,667
Carrier routes: 12 (5,356 homes)

Key figures

Measure	Value
Residents	9,339
Households	4,186
Median household income	$99,667
Income per person	$93,475
Median age	44
Homeowners	60.2%
Median home value	$1,164,800
Median rent	$1,790
Bachelor's degree or higher	74.7%
Average commute (minutes)	15.5
Households with kids under 18	13.0%
Moved in the past year	23.8%
Below the poverty line	17.0%
Broadband internet	95.6%
Speak a non-English language at home	7.2%

Household income

% of households	Value
<$10K	5.6%
$10–15K	3.5%
$15–25K	10.1%
$25–35K	4.6%
$35–50K	8.9%
$50–75K	11.1%
$75–100K	6.3%
$100–150K	8.9%
$150–200K	8.8%
$200K+	32.2%

Age

% of all residents	Value
<10	4.7%
10–19	16.9%
20–24	12.7%
25–34	13.2%
35–44	3.8%
45–54	8.7%
55–64	14.9%
65–74	16.0%
75+	9.2%

Tenure

% of housing units	Value
Owned, with mortgage	24.1%
Owned outright	20.3%
Rented	28.6%
Vacant	27.0%

Type of building

% of housing units	Value
Detached house	35.7%
Townhome	8.9%
2–4 units	18.6%
5–19 units	13.4%
20+ units	23.4%
Mobile / other	0.0%

Businesses in 29401

1,305 business establishments with 18,896 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 273
Retail Trade: 254
Accommodation and Food Services: 178
Real Estate and Rental and Leasing: 129
Finance and Insurance: 121
Other Services (except Public Administration): 84
Health Care and Social Assistance: 48
Administrative and Support and Waste Management and Remediation Services: 42

EDDM carrier routes

29401 has 12 USPS carrier routes with 5,356 residential and 1,379 business mailboxes. Open the EDDM route map.

Carrier routes in 29401

29401 has 12 USPS carrier routes (12 city (C)) with 5,356 residential and 1,379 business mailboxes. Routes range from 233 homes (C015) to 686 homes (C004); the median route has 423 homes. The Census counted 4,186 households in 29401 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	7
500–749	4
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 29401 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C015 — USPS business mailboxes 251, 233 homes
Route C005 — USPS business mailboxes 234, 365 homes
Route C008 — USPS business mailboxes 228, 542 homes
Route C009 — USPS business mailboxes 212, 398 homes
Route C018 — USPS business mailboxes 192, 337 homes

Select these 5 routes on the route map

Every carrier route in 29401

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	506	33	$152,350	—	—	—
C002	City	319	1	$200,001+	—	—	—
C004	City	686	15	$200,001+	—	—	—
C005	City	365	234	$29,666	—	—	—
C006	City	448	109	$92,256	—	—	—
C008	City	542	228	$53,693	—	—	—
C009	City	398	212	$89,141	—	—	—
C011	City	382	7	$200,001+	—	—	—
C014	City	460	12	$130,210	—	—	—
C015	City	233	251	$29,666	—	—	—
C018	City	337	192	$80,612	—	—	—
C019	City	680	85	$92,256	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 29401 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

29424 — Charleston city, SC (0.6 mi)
29425 — Charleston city, SC (1.1 mi)
29403 — Charleston city, SC (2 mi)
29409 — Charleston city, SC (2.1 mi)
29407 — Charleston city, SC (4.1 mi)
29412 — Charleston city, SC (4.7 mi)
29464 — Mount Pleasant town, SC (5.2 mi)
29405 — North Charleston city, SC (5.9 mi)

Areas that include 29401

Charleston, SC ZIP codes — 11 ZIP codes
Charleston County ZIP codes — 27 ZIP codes
South Carolina ZIP code data

Where it ranks

Mail every home in 29401

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 29401, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 29401 in?: 29401 is a Charleston, SC mailing address. By land area, 100% lies inside Charleston.
What county is 29401 in?: 29401 is in Charleston County.
What is the population of 29401?: About 9,339 people (±820), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,145.
What is the median household income in 29401?: $99,667 (±$26,355), compared with $69,324 for South Carolina as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 29401?: 12 USPS carrier routes with 5,356 residential and 1,379 business mailboxes (6,718 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 29401?: The closest, measured center to center: 29424 (0.6 mi, Charleston), 29425 (1.1 mi, Charleston), 29403 (2 mi, Charleston), 29409 (2.1 mi, Charleston), 29407 (4.1 mi, Charleston) and 29412 (4.7 mi, Charleston).

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