Item 2. Properties

We lease most of our stores under long-term leases that vary as to rental amounts, expiration dates, renewal options and other rental provisions. For additional information on the amount of our rental obligations for our leases, we refer you to Note 7 “Leases” in our Annual Report to Stockholders for the year ended December 31, 2017, which section is incorporated by reference herein.

As of December 31, 2017, we owned approximately 4% of our 8,108 retail stores. Net selling space for our retail stores was approximately 79.5 million square feet as of December 31, 2017. Approximately 20% of our store base was opened or significantly remodeled within the last five years.

We lease 1,695 retail pharmacies and 79 clinics in Target stores located in 47 states and the District of Columbia.

We own nine distribution centers located in Alabama, California, Hawaii, New York, Rhode Island, South Carolina, Tennessee and Texas and lease 13 additional distribution facilities located in Arizona, Florida, Indiana, Michigan, Missouri, New Jersey, Pennsylvania, Texas, Virginia and Brazil. The 22 distribution centers total approximately 10.4 million square feet as of December 31, 2017.

As of December 31, 2017, we owned six and leased 139 LTC pharmacies in 44 states and owned one LTC repackaging facility in Kentucky.

As of December 31, 2017, we owned one mail service dispensing pharmacy located in Texas and leased three additional mail order dispensing pharmacies located in Hawaii, Illinois and Pennsylvania; we leased call centers located in California, Missouri, Pennsylvania, Tennessee and Texas; we leased 37 onsite pharmacy stores and 23 specialty pharmacy stores, and leased 18 specialty mail order pharmacies; we leased 83 branches for infusion and enteral services, including approximately 73 ambulatory infusion suites and three centers of excellence.

We own our corporate offices located in Woonsocket, Rhode Island, which totals approximately one million square feet. In addition, we lease corporate offices in Scottsdale, Arizona, Northbrook, Illinois, Cincinnati, Ohio, Monroeville, Pennsylvania, Irving, Texas, and Sao Paulo, Brazil.

In connection with certain business dispositions completed between 1991 and 1997, we continue to guarantee lease obligations for approximately 85 former stores. We are indemnified for these guarantee obligations by the respective purchasers. These guarantees generally remain in effect for the initial lease term and any extension thereof pursuant to a renewal option provided for in the lease prior to the time of the disposition. For additional information, we refer you to Note 12 “Commitments and Contingencies” in our Annual Report to Stockholders for the year ended December 31, 2017, which section is incorporated by reference herein.

Management believes that the Company’s owned and leased facilities are suitable and adequate to meet the Company’s anticipated needs. At the end of the existing lease terms, management believes the leases can be renewed or replaced by alternative space.

The following is a breakdown by state, District of Columbia, Puerto Rico and Brazil of our retail stores, pharmacies and clinics in Target stores, LTC hub and spoke pharmacies, onsite pharmacy stores, specialty pharmacy stores, specialty mail order pharmacies, mail order dispensing pharmacies and branches and centers of excellence for infusion and enteral services as of December 31, 2017: