With minimal public input Contra Costa Supervisors choose redistricting map

Endorse Map D keeping their districts mostly the same

Splits Concord minimally; keeps Antioch split but along different lines; reunites Pinole; moves Alamo, Blackhawk and Camino Tassajara into the same district as the rest of the San Ramon Valley

By Daniel Borsuk

With scant public testimony and only three complete community map submissions, during their meeting on Tuesday, Nov. 9, Contra Costa Supervisors decided to move forward with the 2021 redistricting effort by selecting Map D as the preferred alternative. It creates proposed supervisorial boundaries that will be in place for the next 10 years.  CCCBOS Redistricting 2021 NOV 9 presentation-part 1    CCCBOS Redistricting 2021 NOV 9 presentation-part 2

With the clock ticking for supervisors to wrap up the federally mandated redistricting effort by Dec. 15, county officials have not received an abundance of public input at public hearings and workshops on proposed supervisorial maps, but after supervisors again heard meager public input on the proposed maps, the elected officials decided to move forward to comply with federal law.

At the end of day, of the four maps proposed by county staff and the three complete alternative maps submitted by the public, supervisors chose Map D mainly because it presents the fewest revisions from the current districts. However, it offers districts with the greatest deviation of 9.77% in population between districts of all four maps offered by county staff. It only splits up the cities of Concord, Antioch and Walnut Creek.

Impacts

The chosen map results in Districts 3 and 5 with the least population, 11,568 and 11,425 fewer residents than average, respectively, and Districts 2 and 4 with the most population of 11,264 and 9,273 greater than average. So, Districts 3 and 5 Supervisors will represent about 21,000 to 23,000 fewer residents than Districts 2 and 4. District 1 will have the lowest deviation from average population of just 2,455 residents or 1.05%.

Map D reunites Pinole moving a portion from the current District 5 into District 1 in West County.

It moves Alamo, Blackhawk and Tassajara Valley from the current District 3 into District 2, allowing them to join the rest of the San Ramon Valley.

It keeps Antioch split in two between Districts 3 and 5, as the city currently is, but along different streets and the Union Pacific Railroad right-of-way, in one part.

It keeps the Rossmoor community of Walnut Creek split from the rest of that city, and leaves it in District 2, while the rest of the city will be in District 4.

The map also shifts a portion of Concord from District 4 into District 5.

District 4 Supervisor Karen Mitchoff, who announced she will not seek re-election next year, liked Map D because it presents the “least intrusion into Concord.”  District 4 would also pick up the Morgan Territory area.

“If I could have all of Antioch I would,” said Board Chair Burgis.

District 1 Supervisor John Gioia, whose seat is also up for election next year, acknowledged with Map D his district cannot go beyond Pinole and El Sobrante. The neighboring and nearby communities of Hercules and Crockett will be fully represented by District 5 Supervisor Federal Glover.

Alternative Maps

There were only 12 community submissions with eight complete maps and four community of interest maps, using the county’s online mapping tool. Two of the complete maps were submitted by one person and three by another, So, only five people submitted complete, alternative maps.  CCCBOS Redistricting 2021 Community Submission Maps Oct05&19    CCCBOS Redistricting 2021 Community Submission Maps Nov09

Two of the complete maps offered total population deviations between the districts of 10.55% and 13.38%, which is greater than the 10% maximum deviation legally allowed. The population of each district can only be 5% greater or lesser than average. The other five maps split up communities of interest

The community submission of a complete map of the five districts, by the Contra Costa Herald, complied with the population deviation requirement of no greater or fewer than 5% from average. The map offers districts with the least population deviation of just 1.67% compared to the four maps proposed by county staff, while respecting both city and community boundaries, except for Concord and Antioch, the county’s largest cities. In general, the Contra Costa Herald map uses major city streets as the dividing lines, such as A Street in Antioch, and the districts are as compact as possible.

Allen Payton contributed to this report.