Aguadilla–Isabela–San Sebastián metropolitan area
The Aguadilla–Isabela–San Sebastián metropolitan area is a United States Census Bureau defined metropolitan statistical area (MSA) in northwestern Puerto Rico. A July 1, 2009, Census Bureau estimate placed the population at 342,495, a 9.56% increase over the 2000 census figure of 312,602.
Aguadilla–Isabela–San Sebastián is the second-largest metropolitan area (by population) in Puerto Rico after San Juan–Caguas–Guaynabo and is the fastest growing MSA in the Commonwealth.
- Aguadilla – principal city
- Isabela – principal city
- San Sebastián – principal city
- "Table 3. Annual Estimates of the Population of Metropolitan and Micropolitan Statistical Areas in Puerto Rico: April 1, 2000 to July 1, 2009 (CBSA-EST2009-03)". 2009 Population Estimates. United States Census Bureau, Population Division. 2010-03-23. Archived from the original (CSV) on 2010-06-15. Retrieved 2010-03-31.
- "Update of Statistical Area Definitions and Guidance on Their Uses (OMB Bulletin 08 - 01)" (PDF). 2007 Population Estimates. United States Census Bureau, Population Division. 2007-11-20. Archived from the original (PDF) on 17 November 2008. Retrieved 2008-11-10.