New Redistricting Maps Mean Changes for Antioch in Assembly and Congress

The new Assembly District 11. Map and information by Meridian Pacific, Inc.

By Allen Payton, Publisher

The California Citizens Redistricting Commission took their first vote on the final maps for State Assembly, State Senate, Congressional and Board of Equalization district maps, yesterday, Friday, July 29 and the results mean many changes for Antioch.


All of Antioch will now be in a new Assembly district, labeled AD11, with the other East County communities of Oakley, Brentwood, Discovery Bay, Bethel Island, Byron, Knightsen and part of Pittsburg, as well as the majority of Solano County. The city will no longer be represented by Susan Bonilla (D-Concord) and will get a new Assembly member, since there is no incumbent who currently lives in the new district. A member of either the Assembly or State Senate must live in the district they represent.

The new Congressional District 9. Map and information by Meridian Pacific, Inc.


Antioch will also be getting two new members in the House of Representatives, with the western side of the city moving into Congressman George Miller’s (D-Martinez) district and the rest of the city into a district with no incumbent. However, Congressman Jerry McNerney (D-Pleasanton), who currently represents a portion of  San Joaquin County and Eastern Contra Costa County, announced he will be moving into the new district in San Joaquin County, although that’s not a requirement for Congress.

The new congressional district maps divide Antioch in a peculiar way, because each congressional district has to be equal in population, unlike State Assembly and Senate Districts, which have an approximate one percent population deviation from one to the other.

The new district line runs from Somersville Road, south of the James Donlon Blvd. intersection, down the middle of James Donlon Blvd., includes the Twin Creeks Apartments and then turns north down the middle of Contra Loma Blvd. Then the line runs along Putnam Street, then turns north along D Street to San Joaquin Avenue.  It turns east to West Tregallas Road, follows that road around the Post Office back to D Street, then heads north to the west bound lanes of Highway 4.

The new Congressional District 11, including western Antioch. Map and information by Meridian Pacific, Inc.

It then runs east to A Street, turns north and runs in the middle of A Street to 18th Street. The dividing line then turns west and runs along 18th Street to D Street, again, turns north to 10th Street. It then makes a right turn and heads one block east along 10th Street to C Street, then south on C Street to Park Lane.

It then runs east on Park Lane back to A Street where it turns north and runs up to Beede Way, turning east, briefly to Almond Court, to Wilbur Avenue. It then turns east and runs down the middle of Wilbur Avenue to Fulton Shipyard Road. It turns north and runs along Fulton Shipyard Road to just east of the old shipyard and runs north out into the river.

In general, if you live on the northwest side of the dividing line, you’re in CD11 with the smaller portion of Antioch, all of Pittsburg, Bay Point, and most of the rest of Contra Costa County, and Eastern Alameda County. If you live on the southeast side of the line, you’re in CD9 with most of Antioch, Far East County and northern San Joaquin County.

The new State Senate District 7. Map and information by Meridian Pacific, Inc.


State Senator Mark DeSaulnier (D-Concord) will continue to represent Antioch and the rest of East County, as well as most of Contra Costa County, plus Dublin, Pleasanton, Livermore and Sunol in Eastern Alameda County, in State Senate District 9. Finishing his first term in the State Senate, he is up for election, next year and can run for only one more term.

For more information and to see all the maps of all the 177 new districts throughout the state, click here or visit either or Meridian Pacific’s website at

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