91661 is a postal code in Sacramento, California. It is located west of downtown and north of Interstate 80, and its primary stretch runs along Del Paso Boulevard and Hagginwood Avenue. It is primarily a residential area, with a mix of single-family homes, apartments, and condominiums. There are also some commercial strips along Del Paso Boulevard and Freeport Boulevard, featuring retail stores, restaurants, banks, and small businesses. Attractions within this area include the Arcade Creek Park Preserve, Northgate Park, Rosenfields Park, and the North City Farms Community Garden.