Carolina (kah-ro-LEE-nah) is a city located in the northern part of Puerto Rico, bordering the Atlantic Ocean; north of Gurabo and Juncos; east of Trujillo Alto and San Juan; and west of Canóvanas and Loíza. Carolina is spread over 12 wards and Carolina Pueblo (The downtown area and the administrative center of the city).

Carolina is a short distance from San Juan. Along with San Juan, Bayamón, Guaynabo, Cataño, Toa Baja and Trujillo Alto it is considered to be a part of the island's metropolitan area.