Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/29403

29403

ZIP 29403 is in Charleston, South Carolina, in Charleston County; area codes 843 and 854; Eastern time. Charleston has 16 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Charleston
Population
22,533
Coordinates
32.8033, -79.9457
☼ Live from 29403 — Charleston, SC

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 29403 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 29403
  • 🔢 Type 29403 into a pocket calculator and turn it upside down: EOhGZ — not quite a word, sorry.
  • ➕ As a number, 29,403 = 3 × 3 × 3 × 3 × 3 × 11 × 11. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111001011011011
  • 🏠 Its numerical neighbours: 29402 (Charleston, SC, 2 mi away) and 29404 (Charleston Afb, SC, 9 mi away).
  • 🔄 Backwards, 29403 becomes 30492, which is not a ZIP code at all.
  • 👥 51 other ZIP codes are made of exactly the same digits (02349, 02493, 03249, 04239, 04923, 04932, …). The farthest-flung twin is 94302 in Palo Alto, CA, 2,386 miles away.
  • 🧭 Farther south than 85% of all ZIP codes, and farther east than 74%.
  • 🎯1,142 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 29403 and you would come out at 32.80°S, 100.05°E — 923 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 19m of daylight. Shortest: 9h 59m.
  • 📏 At 5.4 square miles of land, 29403 is bigger than 20% of ZIP codes — room for about 4.1 Central Parks.
🌙 The sky over 29403 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population22,533This ZIP22,533
Households10,862This ZIP10,862
Housing units13,460This ZIP13,460
Median age30.0This ZIP30.0South Carolina40.2US 38.9
Median household income$66,944This ZIP$66,944South Carolina$69,324US $80,734
Median home value$674,000This ZIP$674,000South Carolina$259,000US $332,700
Median gross rent$1,798This ZIP$1,798South Carolina$1,180US $1,413
Bachelor's degree or higher60.9%This ZIP60.9%
Mean commute17.3 minThis ZIP17.3 min
Population density4,174.3 / sq miThis ZIP4,174.3 / sq mi

Business and tax activity

Business establishments1,020This ZIP1,020
Employees13,595This ZIP13,595
Annual payroll$846,213,000This ZIP$846,213,000
Tax returns filed10,050This ZIP10,050
Total adjusted gross income$1,187,875,000This ZIP$1,187,875,000

Land area

Land area5.40 sq miThis ZIP5.40 sq mi
Water area1.02 sq miThis ZIP1.02 sq mi

Other place names in 29403

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 29403

ZIPCityDistance
29409 Charleston, SC 1.0 mi
29425 Charleston, SC 1.3 mi
29424 Charleston, SC 1.4 mi
29401 Charleston, SC 2.0 mi
29402 Charleston, SC 2.0 mi
29407 Charleston, SC 3.0 mi
29415 North Charleston, SC 3.9 mi
29419 North Charleston, SC 3.9 mi
29405 North Charleston, SC 3.9 mi
29465 Mount Pleasant, SC 4.9 mi

Find every ZIP code within 10 miles of 29403 →

Questions about this ZIP code

Where is ZIP code 29403?

29403 is in Charleston, South Carolina, in Charleston County, part of the Charleston-North Charleston, SC metropolitan area. Its published point location is 32.8033, -79.9457.

What county is 29403 in?

29403 lies in Charleston County.

What area code is 29403?

Charleston uses area codes 843 and 854, from NANPA's telephone records.

What time zone is 29403 in?

29403 uses America/New_York.

How many people live in 29403?

About 22,533 people live in ZIP code 29403, in 10,862 households, at 4,174.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 29403?

$66,944 a year, against $69,324 across South Carolina.

What ZIP codes are near 29403?

The closest are 29409 (1 mi), 29425 (1.3 mi), 29424 (1.4 mi), 29401 (2 mi) and 29402 (2 mi).

Is 29403 a PO Box ZIP code?

29403 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “29403 ZIP Code — Charleston, South Carolina (Charleston County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/29403

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/29403.json

Underlying data is public domain or openly licensed — sources, vintages and licences.