1. Bethel Island area bordered by Stone Rd on the south, South Willow Rd on the east, Piper Rd and Bethel Island Rd on the west and Gateway Rd on the north.
2. Holland Tract area: northern third of the island.
3. Northern Waterfront: The area bordered by Waterfront Rd on the south, Hastings Slough on the east, Suisun Bay shore on the north and Hwy 680 (Benicia Bridge) on the west.
4. Pittsburg: The area bordered by Mayport Ct, Parkview Dr and Eden Ct on the east, Polaris Dr on the south, Loftus Dr, Seasons Dr on the west and Willow Pass Rd and railroad tracks on the north.

1. Concord: The area bordered by Monument Blvd on the north, Detroit Ave on the east, Chalomar Rd, Keswick Ln to the south and Gardenia Ln west end of Rosemary Ln, Orange St and Lilia Del Oasis to the west.
2. Concord: The area bordered by Kimball Wy and Joan Ave on the north, Cape Cod Wy on the east, Hitchcock Rd and Liscome Wy on the south and Francis Dr, Lancashire Dr and Kimball Ct on the west.
3. Pacheco/Martinez: The area bordered by Hwy 680 on the west, Emshee Ln on the north, Pacheco Slough on the east and Imhoff Dr, CC Sanitary District on the south.
4. Martinez: The area bordered by Goree Ct and Arthur Rd on the north, Irene Dr and Palms Dr on the east and Arthur Rd and Leabig Ln on the south and Pacheco Blvd on the west.
5. Pleasant Hill: The area bordered by Harriet Dr and Ellinwood Dr on the north, Hwy 680 on the east, Gregory Ln on the south and Patricia Dr, Leslie Dr and Ruth Dr on the west.

Bethel Island area bordered by Bethel Island Road north of Gateway Road on the west, Stone Road and North Stone Road on the south, Gateway Road and Piper Road on the north and South Willow Road on the east.

Bethel Island area bordered by Bethel Island Road on the west, Stone Road on the South, Gateway Road on the North and North Stone Road on the east.

North Pittsburg area bordered by Red Leaf Way on the west, North Parkside Drive on the south, Montezuma Street/Herb White Way on the east and Willow Pass Road on the north.

1. Martinez: The area bordered by Hwy I-680 on the west, Waterfront Road on the south, Hastings Slough on the east and the shoreline of Suisun Bay on the north.
2. Martinez/Waterfront area bordered by Pacheco Boulevard/Sunrise Drive/Goree Court on the west, Hwy 4 on the south, Waterbird Way on the east and Arthur Road on the north.

1. Pleasant Hill bordered by Patricia Drive, Leslie Drive and Ruth Drive to the west; Gregory Lane on the south; I-680 on the east; and Harriet Drive and Ellinwood Drive on the north.
2. Pleasant Hill/Concord bordered by I-680 on the west; Mayhew Way on the south, and Walnut Creek on the east & north (the creek, not the city).
3. Knightsen bordered by Peach Lane on the west; Hidden Ranch Rd on the south; Hotchkiss Rd on the east; and Tule Lane on the north.

Waterfront area bordered by the Benicia Bridge on the west, Waterfront road on the south, Pacheco Slough on the east and the shoreline on the north.

Martinez/Waterfront area bordered by Pacheco Blvd/Sunrise Drive/Goree Ct/ I-680 on the west, Highway 4 on the south, Pacheco/Hastings Slough on the east, and Suisun Bay on the north.

1. Martinez area bordered by I-680 on the west, Highway 4 on the south, Pacheco Slough on the east, and Imhoff Drive on the north.
2. Waterfront area bordered by the Benicia Bridge on the west, just south of the railroad tracks on the south, Hastings Slough on the east and the shoreline on the north.

Waterfront area bordered by the Benicia Bridge on the west, just south of the railroad tracks on the south, Hastings Slough on the east and the shoreline on the north.

1. Martinez area bordered by I-680 on the west, Highway 4 on the south, Grayson Creek and Pacheco Slough on the east, and Arthur Road on the north.
2. Pleasant Hill bordered by Patricia Drive, Leslie Drive, and Ruth Drive on the west, Gregory Lane on the south, I-680 on the east, and Harriet Drive and Ellinwood Drive on the North.
3. Pleasant Hill/Concord bordered by I-680 on the west, Mayhew Way on the south and Walnut Creek on the east & north (the creek not the city).

1. Martinez area bordered by I-680 on the west, Highway 4 on the south, Grayson Creek and Pacheco Slough on the east, and Arthur Road on the north.
2. Pleasant Hill bordered by Patricia Drive, Leslie Drive, and Ruth Drive on the west, Gregory Lane on the south, I-680 on the east, and Harriet Drive and Ellinwood Drive on the North.
3. Pleasant Hill/Concord bordered by I-680 on the west, Mayhew Way on the south and Walnut Creek on the east & north (the creek not the city).

Waterfront areas from Martinez to Pittsburg between the railroad tracks and the shoreline.

Concord waterfront bordered by I-680(W), Waterfront Rd (S), Hastings Slough (E), and Suisun Bay (N)

Martinez area bordered by Hwy 4 (S), I-680 (W), Imhoff Drive (N), and Walnut Creek (E).

Antioch - bordered by 13th Street & Lake Drive (N), August Way & Alpha Way (W), Railroad Tracks (S), and Terrace Dr & Olive Lane (E)

1. Oakley, north of Hwy 4, bordered by Big Break Rd (W), Hwy 4 (S), and Fetzer Lane (E)
2. Oakley, bordered by Laurel Rd (N), Empire Ave (W), Carpenter Rd (S), and O?Hara Ave (E)

1. Concord, north of Hwy 4, north of Hwy 4, bordered by Port Chicago Hwy, Arnold Industrial Way, Laura Alice Way, Nelson Ave and Bates Ave.
2. Martinez area, north of Hwy 4, between Waterbird Wy and Grayson Creek, generally the area around Central Contra Costa Sanitary District Treatment Plant.

1. Concord, north of Hwy 4, between Industrial Way, Bates Ave. and Nelson Ave.
2. Martinez area, north of Hwy 4, between Waterbird Wy and Grayson Creek, generally the area around Central Contra Costa Sanitary District Treatment Plant.
3. Pacheco, N. & S. Buchanan Circles 4.) Martinez, the areas between Morello Ave and Center Ave known as Hidden Valley Park and Hidden Lakes Park.