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/05403

05403

ZIP 05403 is in South Burlington, Vermont, in Chittenden County; area code 802; Eastern time. South Burlington has 2 ZIP codes; the other is 05407.

Type
Standard
Time zone
America/New_York
County
Chittenden
Population
20,614
Coordinates
44.4449, -73.1735
☼ Live from 05403 — South Burlington, VT

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Local time: —

Where 05403 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 05403
  • 🔢 Type 05403 into a pocket calculator and turn it upside down: EOhSO — not quite a word, sorry.
  • ➕ As a number, 5,403 = 3 × 1801. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010100011011
  • 🏠 Its numerical neighbours: 05402 (Burlington, VT, 4 mi away) and 05404 (Winooski, VT, 4 mi away).
  • 🔄 Backwards, 05403 becomes 30450 — and that is a real ZIP code: Portal, GA, 947 miles away.
  • 👥 32 other ZIP codes are made of exactly the same digits (03045, 03054, 03450, 04350, 04530, 05034, …). The farthest-flung twin is 34005 in APO AA, a military post office, 2,462 miles away.
  • 🧭 Farther north than 89% of all ZIP codes, and farther east than 93%.
  • 🎯1,334 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 05403 and you would come out at 44.44°S, 106.83°E — 991 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 33m of daylight. Shortest: 8h 50m.
  • 📏 At 16.4 square miles of land, 05403 is bigger than 34% of ZIP codes — room for about 12 Central Parks.
🌙 The sky over 05403 today
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🌋 Shake report
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Source: USGS.

People and housing

Population20,614This ZIP20,614
Households9,418This ZIP9,418
Housing units9,625This ZIP9,625
Median age38.1This ZIP38.1Vermont43.1US 38.9
Median household income$105,616This ZIP$105,616Vermont$81,203US $80,734
Median home value$442,400This ZIP$442,400Vermont$316,600US $332,700
Median gross rent$1,787This ZIP$1,787Vermont$1,234US $1,413
Bachelor's degree or higher67.3%This ZIP67.3%
Mean commute17.8 minThis ZIP17.8 min
Population density1,260.6 / sq miThis ZIP1,260.6 / sq mi

Business and tax activity

Business establishments1,009This ZIP1,009
Employees17,633This ZIP17,633
Annual payroll$1,074,118,000This ZIP$1,074,118,000
Tax returns filed11,460This ZIP11,460
Total adjusted gross income$1,207,944,000This ZIP$1,207,944,000

Land area

Land area16.35 sq miThis ZIP16.35 sq mi
Water area0.17 sq miThis ZIP0.17 sq mi

Other place names in 05403

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

ZIP codes near 05403

ZIPCityDistance
05405 Burlington, VT 2.3 mi
05401 Burlington, VT 3.0 mi
05439 Colchester, VT 3.5 mi
05404 Winooski, VT 3.5 mi
05495 Williston, VT 4.0 mi
05402 Burlington, VT 4.5 mi
05406 Burlington, VT 4.5 mi
05407 South Burlington, VT 4.5 mi
05453 Essex Junction, VT 4.5 mi
05482 Shelburne, VT 5.0 mi

Find every ZIP code within 10 miles of 05403 →

Questions about this ZIP code

Where is ZIP code 05403?

05403 is in South Burlington, Vermont, in Chittenden County, part of the Burlington-South Burlington, VT metropolitan area. Its published point location is 44.4449, -73.1735.

What county is 05403 in?

05403 lies in Chittenden County.

What area code is 05403?

South Burlington uses area code 802, from NANPA's telephone records.

What time zone is 05403 in?

05403 uses America/New_York.

How many people live in 05403?

About 20,614 people live in ZIP code 05403, in 9,418 households, at 1,260.6 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 05403?

$105,616 a year, against $81,203 across Vermont.

What ZIP codes are near 05403?

The closest are 05405 (2.3 mi), 05401 (3 mi), 05439 (3.5 mi), 05404 (3.5 mi) and 05495 (4 mi).

Is 05403 a PO Box ZIP code?

05403 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “05403 ZIP Code — South Burlington, Vermont (Chittenden County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/05403

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