B4: The northern boundary of this zone is the Columbia River and the southern boundary is Belmont Drive. The eastern boundary is Rand Road running down to the May Street intersection. The line then continues due south until it reaches Belmont Drive in the 2600 Block area. The western boundary is Country Club Road.
- B5: The northern boundary of this zone uses Belmont, Brookside and Elliot. The southern boundary uses Barrett Drive, running on a straight line through Tucker Road, all the way to the Hood River. The Hood River is the eastern boundary, and Country Club Road is the western boundary.
- B6: The northern boundary of this zone uses Barrett Drive running east-west from Country Club to the Hood River. The southern-eastern boundary follows the Hood River until it reaches Highway 281 (Dee Highway), then follows 281 until Summit Drive. The Hood River is the eastern boundary, and the western boundary is defined by Country Club, beginning at the Barrett intersection, then following it south to Reed Road, then following that line due south until it intersects with 281 at Summit.