The Yauco Metropolitan Statistical Area is a United States Census Bureau

United States Census Bureau

The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

 defined Metropolitan Statistical Area (MSA) in southwestern Puerto Rico

Puerto Rico

Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...

. A July 1, 2009 Census Bureau estimate placed the population at 125,266, a 6.10% increase over the 2000 census

United States Census, 2000

The Twenty-second United States Census, known as Census 2000 and conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 persons enumerated during the 1990 Census...

 figure of 118,063.

Municipalities

A total of four municipalities are included as part of the Yauco Metropolitan Statistical Area. They are:

• Guánica
  Guánica, Puerto Rico
  Guánica is a municipality in southwestern Puerto Rico located on southern coast, bordering the Caribbean Sea, south of Sabana Grande, east of Lajas, and west of Yauco. It is part of the Yauco Metropolitan Statistical Area....
  
  
• Guayanilla
  Guayanilla, Puerto Rico
  Guayanilla is a municipality of Puerto Rico located in southern coast of the island, bordering the Caribbean Sea, south of Adjuntas, east of Yauco; and west of Peñuelas and about 12 miles west of Ponce. Guayanilla is spread over 16 wards and Guayanilla Pueblo...
  
  
• Peñuelas
  Peñuelas, Puerto Rico
  Peñuelas is a municipality in Puerto Rico located in the southern coast of the island, south of Adjuntas, east of Guayanilla, west of Ponce and north of the Caribbean Sea. Peñuelas is spread over 12 wards and Peñuelas Pueblo . It is part of the Yauco Metropolitan Statistical Area...
  
  
• Yauco
  Yauco, Puerto Rico
  Yauco is a city and municipality in southwestern Puerto Rico located in the southern coast of the island by the Caribbean, south of Maricao, Lares and Adjuntas; east of Sabana Grande and Guánica; and west of Guayanilla. Yauco is spread over 20 wards and Yauco Pueblo...
  
  --Principal City

Combined Statistical Area

The Yauco Metropolitan Statistical Area is a component of the Ponce

Ponce, Puerto Rico

Ponce is both a city and a municipality in the southern part of Puerto Rico. The city is the seat of the municipal government.The city of Ponce, the fourth most populated in Puerto Rico, and the most populated outside of the San Juan metropolitan area, is named for Juan Ponce de León y Loayza, the...

–Yauco–Coamo

Coamo, Puerto Rico

Coamo is a municipality in Puerto Rico located in the southern region, north of Santa Isabel; south of Orocovis and Barranquitas; east of Villalba and Juana Díaz; and west of Aibonito and Salinas. Coamo is spread over 10 wards and Coamo Pueblo...

 Combined Statistical Area.