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 — CITY/SC/JOHNS-ISLAND

Johns Island ZIP codes, South Carolina

Johns Island, SC has 2 ZIP codes (29455 and 29457) and area codes 843 and 854. The largest is 29455.

USPS city name
2 ZIP codes
Population
27,576
Area codes
843, 854

NANPA lists no telephone rate centre for Johns Island itself, so these are the area codes of the nearest one, Folly Beach (8.1 miles). A town on an area-code boundary can differ from its neighbour.

Johns Island in numbers

About 27,576 people live in Johns Island, in 12,249 households. The median household income is $121,372 a year, 75% above the South Carolina median of $69,324 (US: $80,734). The median owner-occupied home is valued at $590,800 (2.3 times the South Carolina median).

Population27,576Johns Island27,576
Households12,249Johns Island12,249
Median household income$121,372Johns Island$121,372South Carolina$69,324US $80,734
Median home value$590,800Johns Island$590,800South Carolina$259,000US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the 2 ZIP codes addressed as Johns Island, medians weighted by households. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Johns Island

ZIP codes with the USPS city name Johns Island
ZIP City Type Population Median income Median home
29455 Johns Island , SC Standard 27,576 $121,372 $590,800
29457 Johns Island , SC No street area — — —

Map of Johns Island ZIP codes

2945529457

The ZIP codes of Johns Island, SC, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Johns Island

The nearest larger towns are Charleston (154,338 people, 9.6 mi), North Charleston (119,913 people, 13 mi) and Mount Pleasant (93,993 people, 14 mi).

Towns near Johns Island
TownPopulationDistance
Hollywood 5,382 6.0 mi
Ravenel 2,615 8.1 mi
James Island 12,198 9.5 mi
Charleston 154,338 9.6 mi
North Charleston 119,913 12.6 mi
Hanahan 21,452 14.5 mi
Mount Pleasant 93,993 14.5 mi
Goose Creek 48,078 18.5 mi
Ladson 16,140 18.7 mi
Summerville 51,654 19.0 mi
Sangaree 8,681 20.4 mi
Isle of Palms 4,362 20.7 mi

More nearby: every ZIP code in Charleston County · South Carolina ZIP codes

Cite this page

zipcodes.pro. “Johns Island, SC ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sc/johns-island

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