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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/39503

39503

ZIP 39503 is in Gulfport, Mississippi, in Harrison County; area code 228; Central time. Gulfport has 6 ZIP codes; the others are 39501, 39502, 39505, 39506 and 39507.

Type
Standard
Time zone
America/Chicago
County
Harrison
Metro area
Gulfport-Biloxi, MS
Population
55,059
Coordinates
30.4729, -89.1433
☼ Live from 39503 — Gulfport, MS

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Local time: —

Where 39503 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 39503
  • 🔢 Type 39503 into a pocket calculator and turn it upside down: EOSGE — not quite a word, sorry.
  • ➕ 39503 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001101001001111
  • 🏠 Its numerical neighbours: 39502 (Gulfport, MS, 6 mi away) and 39505 (Gulfport, MS, 6 mi away).
  • 🔄 Backwards, 39503 becomes 30593, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (03593, 09353, 30359, 30539, 33509, 33905, …). The farthest-flung twin is 09353 in APO AE, a military post office, 4,938 miles away.
  • 🧭 Farther south than 92% of all ZIP codes, and farther west than 54%.
  • 🎯837 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 39503 and you would come out at 30.47°S, 90.86°E — 1,322 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 07m of daylight. Shortest: 10h 10m.
  • 📏 At 114.3 square miles of land, 39503 is bigger than 81% of ZIP codes — room for about 87 Central Parks.
🌙 The sky over 39503 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population55,059This ZIP55,059
Households21,636This ZIP21,636
Housing units23,433This ZIP23,433
Median age38.3This ZIP38.3Mississippi38.6US 38.9
Median household income$62,641This ZIP$62,641Mississippi$56,447US $80,734
Median home value$203,800This ZIP$203,800Mississippi$169,800US $332,700
Median gross rent$1,140This ZIP$1,140Mississippi$954US $1,413
Bachelor's degree or higher26.1%This ZIP26.1%
Mean commute26.7 minThis ZIP26.7 min
Population density481.8 / sq miThis ZIP481.8 / sq mi

Business and tax activity

Business establishments1,121This ZIP1,121
Employees17,667This ZIP17,667
Annual payroll$791,758,000This ZIP$791,758,000
Tax returns filed23,620This ZIP23,620
Total adjusted gross income$1,460,980,000This ZIP$1,460,980,000

Land area

Land area114.27 sq miThis ZIP114.27 sq mi
Water area4.11 sq miThis ZIP4.11 sq mi

Other place names in 39503

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

ZIP codes near 39503

ZIPCityDistance
39502 Gulfport, MS 6.0 mi
39505 Gulfport, MS 6.0 mi
39506 Gulfport, MS 6.0 mi
39535 Biloxi, MS 6.0 mi
39501 Gulfport, MS 6.5 mi
39560 Long Beach, MS 7.0 mi
39507 Gulfport, MS 8.2 mi
39571 Pass Christian, MS 8.7 mi
39574 Saucier, MS 9.6 mi
39532 Biloxi, MS 10.2 mi

Find every ZIP code within 10 miles of 39503 →

Questions about this ZIP code

Where is ZIP code 39503?

39503 is in Gulfport, Mississippi, in Harrison County, part of the Gulfport-Biloxi, MS metropolitan area. Its published point location is 30.4729, -89.1433.

What county is 39503 in?

39503 lies in Harrison County.

What area code is 39503?

Gulfport uses area code 228, from NANPA's telephone records.

What time zone is 39503 in?

39503 uses America/Chicago.

How many people live in 39503?

About 55,059 people live in ZIP code 39503, in 21,636 households, at 481.8 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 39503?

$62,641 a year, against $56,447 across Mississippi.

What ZIP codes are near 39503?

The closest are 39502 (6 mi), 39505 (6 mi), 39506 (6 mi), 39535 (6 mi) and 39501 (6.5 mi).

Is 39503 a PO Box ZIP code?

39503 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “39503 ZIP Code — Gulfport, Mississippi (Harrison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/39503

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