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/00738

00738

ZIP 00738 is Fajardo, Puerto Rico, mostly in Fajardo Municipio; area codes 787 and 939; Atlantic time.

Type
Standard
Time zone
America/Puerto_Rico
County
Fajardo +1 more
Population
29,980
Coordinates
18.3045, -65.6987
☼ Live from 00738 — Fajardo, PR

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 00738 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 00738
  • 🔢 Type 00738 into a pocket calculator and turn it upside down: BELOO — not quite a word, sorry.
  • ➕ As a number, 738 = 2 × 3 × 3 × 41. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011100010
  • 🏠 Its numerical neighbours: 00737 (Cayey, PR, 33 mi away) and 00739 (Cidra, PR, 32 mi away).
  • 🔄 Backwards, 00738 becomes 83700, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (00783, 03087, 03780, 03870, 07083, 07308, …). The farthest-flung twin is 80307 in Boulder, CO, 2,793 miles away.
  • 🧭 Farther south than 99% of all ZIP codes, and farther east than 98%.
  • 🎯2,457 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 00738 and you would come out at 18.30°S, 114.30°E — 670 miles from Denpasar, Indonesia, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 14m of daylight. Shortest: 11h 02m.
  • 📏 At 29.6 square miles of land, 00738 is bigger than 45% of ZIP codes — room for about 22 Central Parks.
🌙 The sky over 00738 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population29,980This ZIP29,980
Households12,573This ZIP12,573
Housing units18,456This ZIP18,456
Median age44.9This ZIP44.9Puerto Rico44.8US 38.9
Median household income$25,531This ZIP$25,531Puerto Rico$26,297US $80,734
Median home value$121,600This ZIP$121,600Puerto Rico$131,500US $332,700
Median gross rent$625This ZIP$625Puerto Rico$578US $1,413
Bachelor's degree or higher28.9%This ZIP28.9%
Mean commute26.1 minThis ZIP26.1 min
Population density1,012.1 / sq miThis ZIP1,012.1 / sq mi

Land area

Land area29.62 sq miThis ZIP29.62 sq mi
Water area29.76 sq miThis ZIP29.76 sq mi

Counties 00738 spans

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

CountyShare of this ZIP
Fajardo Municipio 99.6%
Ceiba Municipio 0.4%

Other place names in 00738

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

ZIP codes near 00738

ZIPCityDistance
00773 Luquillo, PR 3.1 mi
00735 Ceiba, PR 4.2 mi
00740 Puerto Real, PR 4.8 mi
00718 Naguabo, PR 6.3 mi
00742 Roosevelt Roads, PR 6.6 mi
34051 FPO AA, AA 6.6 mi
00721 Palmer, PR 6.7 mi
00745 Rio Grande, PR 8.1 mi
00744 Rio Blanco, PR 8.4 mi
00741 Punta Santiago, PR 10.4 mi

Find every ZIP code within 10 miles of 00738 →

Questions about this ZIP code

Where is ZIP code 00738?

00738 is in Fajardo, Puerto Rico, in Fajardo Municipio, part of the San Juan-Bayamón-Caguas, PR metropolitan area. Its published point location is 18.3045, -65.6987.

What county is 00738 in?

00738 spans 2 counties: Fajardo Municipio and Ceiba Municipio. Most of it falls in Fajardo 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 00738?

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

What time zone is 00738 in?

00738 uses America/Puerto_Rico.

How many people live in 00738?

About 29,980 people live in ZIP code 00738, in 12,573 households, at 1,012.1 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 00738?

$25,531 a year, against $26,297 across Puerto Rico.

What ZIP codes are near 00738?

The closest are 00773 (3.1 mi), 00735 (4.2 mi), 00740 (4.8 mi), 00718 (6.3 mi) and 00742 (6.6 mi).

Is 00738 a PO Box ZIP code?

00738 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “00738 ZIP Code — Fajardo, Puerto Rico (Fajardo Municipio).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/00738

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/00738.json

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