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/00603

00603

ZIP 00603 is in Aguadilla, Puerto Rico, mostly in Aguadilla Municipio; area codes 787 and 939; Atlantic time. Aguadilla has 3 ZIP codes; the others are 00604 and 00605.

Type
Standard
Time zone
America/Puerto_Rico
County
Aguadilla +1 more
Metro area
Aguadilla, PR
Population
48,448
Coordinates
18.4574, -67.1249
☼ Live from 00603 — Aguadilla, PR

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 00603 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 00603
  • 🔢 Type 00603 into a pocket calculator and turn it upside down: EOgOO — not quite a word, sorry.
  • ➕ As a number, 603 = 3 × 3 × 67. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001011011
  • 🏠 Its numerical neighbours: 00602 (Aguada, PR, 7 mi away) and 00604 (Aguadilla, PR, 3 mi away).
  • 🔄 Backwards, 00603 becomes 30600, which is not a ZIP code at all.
  • 👥 5 other ZIP codes are made of exactly the same digits (03060, 06030, 30006, 30060, 60030). The farthest-flung twin is 60030 in Grayslake, IL, 2,056 miles away.
  • 🧭 Farther south than 99% of all ZIP codes, and farther east than 98%.
  • 🎯2,383 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 00603 and you would come out at 18.46°S, 112.88°E — 696 miles from Denpasar, Indonesia, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 14m of daylight. Shortest: 11h 01m.
  • 📏 At 34.4 square miles of land, 00603 is bigger than 49% of ZIP codes — room for about 26 Central Parks.
🌙 The sky over 00603 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population48,448This ZIP48,448
Households20,131This ZIP20,131
Housing units26,239This ZIP26,239
Median age46.1This ZIP46.1Puerto Rico44.8US 38.9
Median household income$20,933This ZIP$20,933Puerto Rico$26,297US $80,734
Median home value$152,900This ZIP$152,900Puerto Rico$131,500US $332,700
Median gross rent$475This ZIP$475Puerto Rico$578US $1,413
Bachelor's degree or higher28.4%This ZIP28.4%
Mean commute21.5 minThis ZIP21.5 min
Population density1,410.2 / sq miThis ZIP1,410.2 / sq mi

Land area

Land area34.36 sq miThis ZIP34.36 sq mi
Water area2.41 sq miThis ZIP2.41 sq mi

Counties 00603 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Aguadilla Municipio 99.8%
Moca Municipio 0.2%

Other place names in 00603

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

ZIP codes near 00603

ZIPCityDistance
00604 Aguadilla, PR 2.8 mi
00605 Aguadilla, PR 2.8 mi
00690 San Antonio, PR 3.1 mi
34050 FPO AA, AA 3.2 mi
00676 Moca, PR 6.0 mi
00662 Isabela, PR 7.2 mi
00602 Aguada, PR 7.4 mi
00677 Rincon, PR 10.9 mi
00610 Anasco, PR 11.2 mi
00678 Quebradillas, PR 12.9 mi

Find every ZIP code within 10 miles of 00603 →

Questions about this ZIP code

Where is ZIP code 00603?

00603 is in Aguadilla, Puerto Rico, in Aguadilla Municipio, part of the Aguadilla, PR metropolitan area. Its published point location is 18.4574, -67.1249.

What county is 00603 in?

00603 spans 2 counties: Aguadilla Municipio and Moca Municipio. Most of it falls in Aguadilla Municipio, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 00603?

Aguadilla uses area codes 787 and 939, from NANPA's telephone records.

What time zone is 00603 in?

00603 uses America/Puerto_Rico.

How many people live in 00603?

About 48,448 people live in ZIP code 00603, in 20,131 households, at 1,410.2 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 00603?

$20,933 a year, against $26,297 across Puerto Rico.

What ZIP codes are near 00603?

The closest are 00604 (2.8 mi), 00605 (2.8 mi), 00690 (3.1 mi), 34050 (3.2 mi) and 00676 (6 mi).

Is 00603 a PO Box ZIP code?

00603 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “00603 ZIP Code — Aguadilla, Puerto Rico (Aguadilla Municipio).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/00603

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/00603.json

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