San Lorenzo barrio-pueblo
San Lorenzo barrio-pueblo 
    Pueblo de San Lorenzo  | |
|---|---|
Municipality Seat  | |
Town Hall in San Lorenzo  | |
Location of San Lorenzo barrio-pueblo within the municipality of San Lorenzo shown in red  | |
| Coordinates: 18°11′28″N 65°57′47″W / 18.191°N 65.962984°W | |
| Commonwealth | Puerto Rico | 
| Municipality | San Lorenzo | 
| Area | |
 • Total  | 0.22 sq mi (0.6 km2) | 
| • Land | 0.22 sq mi (0.6 km2) | 
| • Water | 0 sq mi (0 km2) | 
| Elevation | 256 ft (78 m) | 
| Population  (2010)  | |
 • Total  | 2,045 | 
| • Density | 9,738.1/sq mi (3,759.9/km2) | 
| Source: 2010 Census | |
| Time zone | UTC−4 (AST) | 
San Lorenzo barrio-pueblo is a barrio and the administrative center (seat) of San Lorenzo, a municipality of Puerto Rico. Its population in 2010 was 2,045.
As was customary in Spain, the municipality has a barrio called pueblo which contains a central plaza, the municipal buildings (city hall), and a Catholic church. Fiestas patronales (patron saint festivals) are held in the central plaza every year.
| Census | Pop. | Note | %± | 
|---|---|---|---|
| 1900 | 2,084 | — | |
| 1910 | 2,663 | 27.8% | |
| 1920 | 3,662 | 37.5% | |
| 1930 | 4,916 | 34.2% | |
| 1940 | 5,181 | 5.4% | |
| 1950 | 6,745 | 30.2% | |
| 1960 | 5,551 | −17.7% | |
| 1970 | 0 | −100.0% | |
| 1980 | 5,963 | — | |
| 1990 | 2,487 | −58.3% | |
| 2000 | 2,490 | 0.1% | |
| 2010 | 2,045 | −17.9% | |
| U.S. Decennial Census 1899 (shown as 1900) 1910-1930 1930-1950 1980-2000 2010  | |||