00636
ZIP 00636 is Rosario, Puerto Rico, in San Germán Municipio; area codes 787 and 939; Atlantic time.
- Type
- Standard
- Time zone
- America/Puerto_Rico
- County
- San Germán
- Metro area
- Mayagüez, PR
- Population
- 968
- Coordinates
- 18.1636, -67.0801
Weather right now
Asking the National Weather Service…
Where 00636 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.
- 🔢 Type 00636 into a pocket calculator and turn it upside down: gEgOO — not quite a word, sorry.
- ➕ As a number, 636 = 2 × 2 × 3 × 53. Its digits add up to 15, a total 1,657 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1001111100 - 🏠 Its numerical neighbours: 00631 (Castaner, PR, 16 mi away) and 00637 (Sabana Grande, PR, 10 mi away).
- 🔄 Backwards, 00636 becomes 63600, which is not a ZIP code at all.
- 👥 11 other ZIP codes are made of exactly the same digits (06063, 06360, 30066, 30606, 30660, 36006, …). The farthest-flung twin is 66030 in Gardner, KS, 2,197 miles away.
- 🧭 Farther south than 99% of all ZIP codes, and farther east than 98%.
- 🎯2,400 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 00636 and you would come out at 18.16°S, 112.92°E — 675 miles from Denpasar, Indonesia, the nearest big city to that spot.
- ☀Longest day of the year: 13h 13m of daylight. Shortest: 11h 02m.
- 📏 At 0.367 square miles of land, 00636 is bigger than 4% of ZIP codes — about 178 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 968This ZIP968 |
|---|---|
| Households | 304This ZIP304 |
| Housing units | 304This ZIP304 |
| Median age | 40.4This ZIP40.4Puerto Rico44.8US 38.9 |
| Median home value | $128,900This ZIP$128,900Puerto Rico$131,500US $332,700 |
| Median gross rent | $394This ZIP$394Puerto Rico$578US $1,413 |
| Bachelor's degree or higher | 30.9%This ZIP30.9% |
| Mean commute | 18.2 minThis ZIP18.2 min |
| Population density | 2,637.6 / sq miThis ZIP2,637.6 / sq mi |
Land area
| Land area | 0.37 sq miThis ZIP0.37 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 00636
| ZIP | City | Distance |
|---|---|---|
00660 | Hormigueros, PR | 3.1 mi |
00680 | Mayaguez, PR | 3.7 mi |
00681 | Mayaguez, PR | 4.7 mi |
00683 | San German, PR | 4.8 mi |
00682 | Mayaguez, PR | 6.4 mi |
00623 | Cabo Rojo, PR | 7.5 mi |
00670 | Las Marias, PR | 7.8 mi |
00610 | Anasco, PR | 9.6 mi |
00606 | Maricao, PR | 9.7 mi |
00637 | Sabana Grande, PR | 10.4 mi |
Find every ZIP code within 10 miles of 00636 →
Questions about this ZIP code
Where is ZIP code 00636?
00636 is in Rosario, Puerto Rico, in San Germán Municipio, part of the Mayagüez, PR metropolitan area. Its published point location is 18.1636, -67.0801.
What county is 00636 in?
00636 lies in San Germán Municipio.
What area code is 00636?
Rosario uses area codes 787 and 939, from NANPA's telephone records.
What time zone is 00636 in?
00636 uses America/Puerto_Rico.
How many people live in 00636?
About 968 people live in ZIP code 00636, in 304 households, at 2,637.6 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 00636?
The closest are 00660 (3.1 mi), 00680 (3.7 mi), 00681 (4.7 mi), 00683 (4.8 mi) and 00682 (6.4 mi).
Is 00636 a PO Box ZIP code?
00636 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “00636 ZIP Code — Rosario, Puerto Rico (San Germán Municipio).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/00636
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/00636.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.