The 92101 zip code has an area of coverage of roughly 4.7 sq. miles and borders San Diego Bay to the west and goes as far east as the 5 highway dissecting Balboa Park. Laurel Street is the northern portion on the map and Commercial Street marks the southern limit. The estimated zip code population in 2015 was 36,295. It consists of the neighborhoods Little Italy, East Village, Marina District, Columbia District, Cortez Hill and Gas Lamp. There is a fairly high percentage of renters in the in the Downtown 92101 zip code rental units 78%.