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 — CITY/PR/SAN-ANTONIO-2

San Antonio ZIP codes, Puerto Rico

No ZIP code is named for San Antonio, PR; addresses there use a neighbouring town's name. The ZIP code covering it is 00646. Its area codes are 787 and 939.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
6,727
Area codes
787, 939

NANPA lists no telephone rate centre for San Antonio itself, so these are the area codes of the nearest one, Dorado (0.0 miles). A town on an area-code boundary can differ from its neighbour.

San Antonio in numbers

About 6,727 people live in San Antonio, in 2,936 households, the 44th-largest of Puerto Rico's 292 census places. The median household income is $26,808 a year, about the same as the Puerto Rico median of $26,297 (US: $80,734). The median owner-occupied home is valued at $147,500 (12% above the Puerto Rico median), and median gross rent is $541 a month. The median age is 42.9; 32.9% of adults 25 and over hold a bachelor's degree or higher (29.8% across Puerto Rico); the average commute takes 32 minutes.

Population6,727San Antonio6,727
Households2,936San Antonio2,936
Median age42.9San Antonio42.9Puerto Rico44.8US 38.9
Median household income$26,808San Antonio$26,808Puerto Rico$26,297US $80,734
Median home value$147,500San Antonio$147,500Puerto Rico$131,500US $332,700
Median gross rent$541San Antonio$541Puerto Rico$578US $1,413
Bachelor's degree or higher32.9%San Antonio32.9%Puerto Rico29.8%US 35.7%
Mean commute32.0 minSan Antonio32.0 minPuerto Rico28.0 minUS 26.4 min
Population density3,574 / sq miSan Antonio3,574 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place San Antonio comunidad. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering San Antonio

These ZIP codes cover part of San Antonio but are addressed as somewhere else.

ZIP codes overlapping San Antonio
ZIP City Type Population Median income Median home
00646 Dorado , PR Standard 35,998 $36,265 $169,500

Map of San Antonio ZIP codes

00646

The ZIP codes of San Antonio, PR, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near San Antonio

The nearest larger towns are Dorado (12,425 people, 2.4 mi), Vega Alta (8,388 people, 2.6 mi) and Candelaria (14,868 people, 6.0 mi).

Towns near San Antonio
TownPopulationDistance
Dorado 12,425 2.4 mi
Vega Alta 8,388 2.6 mi
Breñas 4,174 2.9 mi
Ceiba 2,640 3.0 mi
Monserrate 2,523 3.8 mi
Campanilla 3,855 4.3 mi
Ingenio 2,784 5.0 mi
Toa Alta 3,259 5.2 mi
Candelaria Arenas 3,560 5.6 mi
Candelaria 14,868 6.0 mi
Vega Baja 22,756 6.5 mi
Corozal 10,237 7.4 mi
Sabana Seca 8,059 7.9 mi
Mansión del Mar 25,510 7.9 mi

More nearby: every ZIP code in Dorado Municipio · Puerto Rico ZIP codes

Cite this page

zipcodes.pro. “San Antonio, PR ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/pr/san-antonio-2

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