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San Lorenzo

Municipio Autónomo de San Lorenzo
Town and Municipality
Hills and valley in San Lorenzo
Hills and valley in San Lorenzo
Flag of San Lorenzo
Coat of arms of San Lorenzo
Coat of arms
"Pueblo de Los Samaritanos", ("Town of Samaritans"), "La Tierra de Leyendas", ("Land of Legends")
Anthem: "Son tus campos de bellísimo verdor"
Map of Puerto Rico highlighting San Lorenzo Municipality
Map of Puerto Rico highlighting San Lorenzo Municipality
Commonwealth  Puerto Rico
Founded 1737
Founded by Valeriano Muñoz de Oneca
 • Total 53.3 sq mi (138.07 km2)
 • Land 53.3 sq mi (138 km2)
 • Water 0.0 sq mi (0.07 km2)  0%%
 • Total 37,693
 • Density 707.2/sq mi (272.999/km2)
Demonym(s) Sanlorenceños
Time zone UTC−4 (AST)
ZIP Code
Area code(s) 787/939
Major routes PR secondary 181.svg PR secondary 183.svg PR secondary 203.svg

San Lorenzo ( Saint Lawrence) is a town and municipality of Puerto Rico located in the eastern central region, north of Patillas and Yabucoa; south of Gurabo; east of Caguas and Cayey; and west of Juncos and Las Piedras. San Lorenzo is spread over twelve barrios and San Lorenzo Pueblo (the downtown area and the administrative center of the city). It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.

San Lorenzo is called "The town of the Samaritans" and "Land of Legends." The patron of the municipality is Nuestra Señora de las Mercedes (Our Lady of Mercedes). The surrounding areas produce tobacco and sugar cane.


San Lorenzo was founded in 1737 and the church was erected in 1811, the original name San Miguel de Hato Grande was changed to San Lorenzo. According to tradition it was because the latter saint appeared to several neighbors in the river valley. San Lorenzo is known as "The People of the Samaritans" because of the following story; "By 1920, in the barrio Hato of San Lorenzo according to the media available at the time and verbal testimonies of people who are still alive, crowds of people climbed a mountain where a young girl of 12 years of age lived. This young girl named Julia Vazquez Torres, according to some sources, had a supernatural power that repeatedly gave healing to people in need. These undeniable achievements were not present at the time, she used home remedies applied with medicinal plants and minerals and the purity of the water from a well, near the mountain where people came to see her. As time passed, she became an adult, but her reputation for integrity and dedication to the wellbeing of the people accompanied her every day her life".


San Lorenzo is located in the eastern central region, north of Patillas and Yabucoa; south of Gurabo; east of Caguas and Cayey; and west of Juncos and Las Piedras.

  • Cayey Mountain Range
  • Río Cayaguás
  • Río Emajagua
  • Río Grande de Loíza
  • Río de Las Vegas
Wards or barrios
  • Pueblo - Population 2,490
  • Cayaguas _ Population 1,345
  • Cerro Gordo - Population 4,400
  • Espino - Population 3,345
  • Florida - Population 5,791
  • Hato - Population 7,109
  • Jagual - Population 4,316
  • Quebrada - Population 2,231
  • Quebrada Arenas - Population 2,751
  • Quebrada Honda - Population 2,309
  • Quemados - Population 4,771
Landmarks and places of interest
  • Priscilla Flores Theater
  • Santuario de la Virgen del Carmen en la Santa Montaña (Holy Mountain)
  • Gallera San Carlos-(Tuesday, Thursday, Friday, Saturday & Sunday; Tel.(787)734-7126
  • Río Grande de Loíza
  • Iglesia Nuestra Señora de las Mercedes (church); a National Historic Site; built in 1737 and renovated in 1993.


Events and Festivals:

  • Three Kings Caroling-January
  • Cavalcade Moncho Roldán-January
  • Candelaria Celebrations-February
  • Kite Festival-March
  • Cross Celebrations-May
  • Patron Celebrations-September
  • Embroidering and Weave Festival-September
  • Passion Fruit Festival-November


  • AA Class Amateur Baseball Club "Los Samaritanos"-National Champions(1975,1997,1999,2000,2001,2002) osAA.
  • Agustin Reyes Half Marathon



The flag of San Lorenzo is divided in four rectangles of equal size, two rectangles are yellow and the other two are striped with red and yellow stripes.

Coat of arms The grill is the traditional symbol of San Lorenzo, deacon and martyr, patron of the town, because in a grill he underwent the martyrdom, slowly burned to death. The hill or mountain represent the Gregorio Hill, which dominates the San Lorenzo panorama. The cross is one of the heraldic attributes of San Miguel Arcángel.



The economy of San Lorenzo, founded in the herd, that is, livestock farming, later included the cultivation of sugar cane, which was processed in this period in a steam-driven farm and five oxen. Coffee and fruits are also cultivated in the municipality. Timber production, which was very rich, had declined by the uncontrolled exploitation of forests.


Clothing, pharmaceuticals, footwear, electromechanical equipment, industrial and household paints.


Historical population
Census Pop.
1900 13,433
1910 14,278 6.3%
1920 18,136 27.0%
1930 23,479 29.5%
1940 26,627 13.4%
1950 29,248 9.8%
1960 27,950 −4.4%
1970 27,755 −0.7%
1980 32,428 16.8%
1990 35,163 8.4%
2000 40,997 16.6%
2010 41,058 0.1%
2020 37,693 −8.2%
U.S. Decennial Census
1899 (shown as 1900) 1910-1930
1930-1950 1960-2000 2010 2020


There are 49 bridges in San Lorenzo.

Notable people

  • Chayanne - Singer and actor
  • Ernestina Reyes “La Calandria” - Singer
  • José Tous Soto - Former Speaker House Of Representatives
  • Antonio Fernós-Isern - Former Resident Commissioner
  • José Aponte Hernandéz - Former Speaker House Of Representatives
  • Carmita Jiménez - Singer
  • Priscila Flores - Singer
  • El Invader #1- professional wrestler
  • Escolastico Capeles - oldest man in San Lorenzo 110 years old
  • Dr. Marc H. Rosa, - Former Teacher, School Administrator And University Professor
  • Josúe "Jay" Fonseca - Political Commentator
  • Edwin Cruz - Lead Singer - “Mechi”
  • Antulio Parrilla Bonilla - Father of Puerto Rican Cooperative Movement, Jesuit priest.
  • Victor Rivera - Wrestler

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