contra costa county detailed map - proposed map: a

SanRiver

StraitCarquinez

BigBreak

San Leandro Reservoir

Los Vaqueros Reservoir

BrionesReservoir

San Pablo Reservoir

CliftonCourt

Forebay

FranksTract

HonkerBay

SuisunBay

SanPablo

Bay

SanFrancisco

Bay

Sacramento River

Joaquin

Old Riv

er

Naval

ByronAirport

Military OceanTerminal Complex

MtDiablo

Buch-ananAirport

Chevron

Marathon

Philips66

KellerCanyonLandfill

West Co.Landfill

Martinez

MorganTerritory

TassajaraValley

AgriculturalCore

ByronTract

ConeyIsland

QuimbyIsland

OrwoodTract

PalmTract

VealeTract

BixlerTract

HollandTract

JerseyIsland

BradfordIsland

WebbTract

WinterIsland

BrownsIsland

FranklinCanyon

BollingerCanyon Vasco

Hills

Briones

Canyon

SandmoundSlough

Refinery Former

Weapons

Concord

Station

BethelIsland

Kensington

El Sobrante

Rodeo

Crockett

Alamo

Knightsen

DiscoveryBay

Byron

BayPoint

Pacheco

Blackhawk

Diablo

PortCosta

Clyde

NorthRichmond

Saranap

ContraCostaCentre

MtView

VineHill

TaraHills

MontalvinManor

Bayview

EastRichmond Heights

San Miguel

NorthGate

Reliez

AlhambraValley

Rollingwood

ShellRidge

Camino Tassajara

NorrisCanyon

Valley

WALNUTCREEK

AcalanesRidge

CastleHill

HERCULES

PINOLE

RICHMOND

MARTINEZ

CONCORD

PLEASANTHILL

WALNUTCREEK

LAFAYETTE

CLAYTON

ANTIOCHOAKLEY

BRENTWOOD

SANRAMON

ORINDA

MORAGA

ELCERRITO

SAN PABLO

PITTSBURG

DANVILLE

ANTIOCH

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BERKELEY

OAKLAND

SANFRANCISCO

DUBLIN

ALAMEDA

ALBANY

BENICIA

VALLEJO

SANLEANDRO LIVERMORE

TRACY

DALY CITY CastroValley

MountainHouse

Diablo, Blackhawk, Camino Tassajara, and Tassajara Valleyto District 2

-6762-2.89%

All ofPinole

to District 1

3

1

2

4

5Concord split at former railroad right-of-way,

Hwy 242, Olivera Rd, Willow Pass Rd,FCNWS Willow Pass Rd, Hwy 4

Pittsburg's 'Tuscany Meadows'annexation to District 5.

Antioch split at Hwy 4,Cavallo Rd, Fulton

Shipyard Rd

MorganTerritory Rd

area inside MtDiablo school

district toDistrict 4

Split at Hwy 24 and I-680Acalanes Ridge CDPin District 4;Saranap and Castle HillCDP in District 2

Split by School District & City SOI:Lafayette Elementary - Dist 2

Mt Diablo School & WC SOI - Dist 4Mt Diablo School & PH SOI - Dist 4Martinez School & PH SOI - Dist 5

24551.05%

-11522-4.93%

45641.95%

112644.82%

PINOLECONCORD

ANTIOCH

ReliezValley

WALNUT CREEK

SanRamon

Valley

MorganTerritory

CONTRA COSTA COUNTY

¯0 5 102.5Miles

District 1District 2District 3District 4District 5

CurrentDistricts

Population VarianceVariance Percentage

TotalVariance9.75%

DRAFT - 2021 Supervisorial DistrictsDetailed Map - Proposed Map: A

Prepared by the Department of Conservation and Development - GIS Group for the November 9th, 2021 Board of Supervisors Public Hearing.

CONTRA COSTA COUNTY

352

1 4

Current Supervisorial Boundaries

Demographic AnalysisRace and Ethnicity by District

9.75%2021 PopulationPopulation: 1,168,069Equal Distribution: 233,614Citizen Voting Age Population(CVAP): 761,065

CONCORD1 5

24

3

ANTIOCH

OAKLEY

SANRAMON

RICHMOND

DANVILLE

ORINDA

WALNUTCREEK

PITTSBURG

LAFAYETTE

MARTINEZ

BRENTWOOD

MORAGA

PINOLEHERCULES

PLEASANTHILL CLAYTON

EL CERRITO

SANPABLO

ByronAlamo

Knightsen

BethelIsland

Blackhawk

BayPoint

DiscoveryBay

Rodeo

Diablo

PachecoElSobrante

Saranap

Crockett

CaminoTassajara

Clyde

Kensington

VineHill

Contra CostaCentre

Prepared by the Department of Conservation and Development - GIS Group for the November 9th, 2021 Board of Supervisors Public Hearing.Data Source: 2021 California State Redistricting Data, Adjusted P.L 94-171 Redistrricting Data and block level Citizen Voting Age Population (CVAP)


Total Population - Race and Ethnicty

Citizen Voting Age Population (CVAP)Race and Ethnicty

Population by DistrictTotal Variance Population Variance Percentage by District

DRAFT - 2021 Supervisorial DistrictsOverview Map and Data - Proposed Map: A

District Population Variance PercentDistrict 1 236,069 2,455 1.05%District 2 244,878 11,264 4.82%District 3 226,852 (6,762) -2.89%District 4 238,178 4,564 1.95%District 5 222,092 (11,522) -4.93%

1.05%4.82%

-2.89%

1.95%

-4.93%-5.0%-2.5%0.0%2.5%5.0%

District 1 District 2 District 3 District 4 District 5

Total Latino White Black Asian Other95,017 51,396 33,307 40,760 15,589

40.2% 21.8% 14.1% 17.3% 6.6%19,799 133,531 3,879 71,377 16,292

8.1% 54.5% 1.6% 29.1% 6.7%71,116 83,123 27,961 27,185 17,467

31.3% 36.6% 12.3% 12.0% 7.7%50,136 126,362 7,113 36,399 18,168

21.0% 53.1% 3.0% 15.3% 7.6%79,357 61,469 26,739 38,827 15,700

35.7% 27.7% 12.0% 17.5% 7.1%315,425 455,881 98,999 214,548 83,216

27.0% 39.0% 8.5% 18.4% 7.1%

District 5 222,092

County 1,168,069

District 3 226,852

District 4 238,178

District 1 236,069

District 2 244,878


25.0% 32.4% 19.4% 18.6% 4.6%9,962 112,518 2,542 31,023 4,632

6.2% 70.0% 1.6% 19.3% 2.9%34,724 73,922 20,294 14,578 7,509

23.0% 48.9% 13.4% 9.7% 5.0%23,526 111,546 5,309 20,243 7,231

14.0% 66.5% 3.2% 12.1% 4.3%34,359 57,680 18,256 23,717 7,175

24.3% 40.9% 12.9% 16.8% 5.1%137,716 401,098 73,684 115,599 32,968

18.1% 52.7% 9.7% 15.2% 4.3%

District 5 141,187

County 761,065

District 2 160,677

District 3 151,027

District 4 167,855

District 1 140,319

SanRiver

StraitCarquinez

BigBreak



BrionesReservoir

San Pablo Reservoir

CliftonCourt

Forebay

FranksTract

HonkerBay

SuisunBay

SanPablo

Bay

SanFrancisco

Bay

Sacramento River

Joaquin

Old Riv

er

Naval

ByronAirport


MtDiablo

Buch-ananAirport

Chevron

Marathon

Philips66


West Co.Landfill

Martinez

MorganTerritory

TassajaraValley

AgriculturalCore

ByronTract

ConeyIsland

QuimbyIsland

OrwoodTract

PalmTract

VealeTract

BixlerTract

HollandTract

JerseyIsland

BradfordIsland

WebbTract

WinterIsland

BrownsIsland

FranklinCanyon


Hills

Briones

Canyon

SandmoundSlough

Refinery Former

Weapons

Concord

Station

BethelIsland

Kensington

El Sobrante

Rodeo

Crockett

Alamo

Knightsen

DiscoveryBay

Byron

BayPoint

Pacheco

Blackhawk

Diablo

PortCosta

Clyde

NorthRichmond

Saranap

ContraCostaCentre

MtView

VineHill

TaraHills

MontalvinManor

Bayview


San Miguel

NorthGate

Reliez

AlhambraValley

Rollingwood

ShellRidge

Camino Tassajara

NorrisCanyon

Valley

WALNUTCREEK

AcalanesRidge

CastleHill

HERCULES

PINOLE

RICHMOND

MARTINEZ

CONCORD

PLEASANTHILL

WALNUTCREEK

LAFAYETTE

CLAYTON

ANTIOCHOAKLEY

BRENTWOOD

SANRAMON

ORINDA

MORAGA

ELCERRITO

SAN PABLO

PITTSBURG

DANVILLE

ANTIOCH

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BERKELEY

OAKLAND

SANFRANCISCO

DUBLIN

ALAMEDA

ALBANY

BENICIA

VALLEJO


TRACY


MountainHouse


-9356-4.00%

All ofPinole

to District 1

3

1

2

4

5Concord split at former railroad right-of-way,

Hwy 242, Olivera Rd, Willow Pass Rd,FCNWS Willow Pass Rd, Hwy 4


Antioch split at Hwy 4, A St,UP railroad, Alpha

Way, E 18th St

MorganTerritory Rd






24551.05%

-8928-3.82%

45641.95%

112644.82%

PINOLECONCORD

ANTIOCH

ReliezValley

WALNUT CREEK

SanRamon

Valley

MorganTerritory

CONTRA COSTA COUNTY

¯0 5 102.5Miles


CurrentDistricts


TotalVariance8.83%

DRAFT - 2021 Supervisorial DistrictsDetailed Map - Proposed Map: B


CONTRA COSTA COUNTY

352

1 4




CONCORD1 5

24

3

ANTIOCH

OAKLEY

SANRAMON

RICHMOND

DANVILLE

ORINDA

WALNUTCREEK

PITTSBURG

LAFAYETTE

MARTINEZ

BRENTWOOD

MORAGA

PINOLEHERCULES


EL CERRITO

SANPABLO

ByronAlamo

Knightsen

BethelIsland

Blackhawk

BayPoint

DiscoveryBay

Rodeo

Diablo

PachecoElSobrante

Saranap

Crockett

CaminoTassajara

Clyde

Kensington

VineHill

Contra CostaCentre






DRAFT - 2021 Supervisorial DistrictsOverview Map and Data - Proposed Map: B


1.05%4.82%

-4.00%

1.95%

-3.82%-5.0%-2.5%0.0%2.5%5.0%



40.2% 21.8% 14.1% 17.3% 6.6%19,799 133,531 3,879 71,377 16,292

8.1% 54.5% 1.6% 29.1% 6.7%70,266 82,334 27,292 27,084 17,282

31.3% 36.7% 12.2% 12.1% 7.7%50,136 126,362 7,113 36,399 18,168

21.0% 53.1% 3.0% 15.3% 7.6%80,207 62,258 27,408 38,928 15,885

35.7% 27.7% 12.2% 17.3% 7.1%315,425 455,881 98,999 214,548 83,216

27.0% 39.0% 8.5% 18.4% 7.1%

District 5 224,686

County 1,168,069

District 3 224,258

District 4 238,178

District 1 236,069

District 2 244,878


25.0% 32.4% 19.4% 18.6% 4.6%9,962 112,518 2,542 31,023 4,632

6.2% 70.0% 1.6% 19.3% 2.9%34,529 72,745 19,685 14,568 7,446

23.2% 48.8% 13.2% 9.8% 5.0%23,526 111,546 5,309 20,243 7,231

14.0% 66.5% 3.2% 12.1% 4.3%34,554 58,857 18,865 23,727 7,238

24.1% 41.1% 13.2% 16.6% 5.1%137,716 401,098 73,684 115,599 32,968

18.1% 52.7% 9.7% 15.2% 4.3%

District 5 143,241

County 761,065

District 2 160,677

District 3 148,973

District 4 167,855

District 1 140,319

SanRiver

StraitCarquinez

BigBreak



BrionesReservoir

San Pablo Reservoir

CliftonCourt

Forebay

FranksTract

HonkerBay

SuisunBay

SanPablo

Bay

SanFrancisco

Bay

Sacramento River

Joaquin

Old Riv

er

Naval

ByronAirport


MtDiablo

Buch-ananAirport

Chevron

Marathon

Philips66


West Co.Landfill

Martinez

MorganTerritory

TassajaraValley

AgriculturalCore

ByronTract

ConeyIsland

QuimbyIsland

OrwoodTract

PalmTract

VealeTract

BixlerTract

HollandTract

JerseyIsland

BradfordIsland

WebbTract

WinterIsland

BrownsIsland

FranklinCanyon


Hills

Briones

Canyon

SandmoundSlough

Refinery Former

Weapons

Concord

Station

BethelIsland

Kensington

El Sobrante

Rodeo

Crockett

Alamo

Knightsen

DiscoveryBay

Byron

BayPoint

Pacheco

Blackhawk

Diablo

PortCosta

Clyde

NorthRichmond

Saranap

ContraCostaCentre

MtView

VineHill

TaraHills

MontalvinManor

Bayview


San Miguel

NorthGate

Reliez

AlhambraValley

Rollingwood

ShellRidge

Camino Tassajara

NorrisCanyon

Valley

WALNUTCREEK

AcalanesRidge

CastleHill

HERCULES

PINOLE

RICHMOND

MARTINEZ

CONCORD

PLEASANTHILL

WALNUTCREEK

LAFAYETTE

CLAYTON

ANTIOCHOAKLEY

BRENTWOOD

SANRAMON

ORINDA

MORAGA

ELCERRITO

SAN PABLO

PITTSBURG

DANVILLE

ANTIOCH

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BERKELEY

OAKLAND

SANFRANCISCO

DUBLIN

ALAMEDA

ALBANY

BENICIA

VALLEJO


TRACY


MountainHouse


-10127-4.33%

All ofPinole

to District 1

3

1

2

4

5Concord split at former railroad

right-of-way, Hwy 242, Olivera Rd Port Chicago Hwy, Hwy 4


Antioch split at Hwy 4, A St,UP railroad, Cavallo

Rd, E 18th St

MorganTerritory Rd






24551.05%

-9355-4.00%

57622.47%

112644.82%

PINOLECONCORD

ANTIOCH

ReliezValley

WALNUT CREEK

SanRamon

Valley

MorganTerritory

CONTRA COSTA COUNTY

¯0 5 102.5Miles


CurrentDistricts


TotalVariance9.16%

DRAFT - 2021 Supervisorial DistrictsDetailed Map - Proposed Map: C


CONTRA COSTA COUNTY

352

1 4




CONCORD1 5

24

3

ANTIOCH

OAKLEY

SANRAMON

RICHMOND

DANVILLE

ORINDA

WALNUTCREEK

PITTSBURG

LAFAYETTE

MARTINEZ

BRENTWOOD

MORAGA

PINOLEHERCULES


EL CERRITO

SANPABLO

ByronAlamo

Knightsen

BethelIsland

Blackhawk

BayPoint

DiscoveryBay

Rodeo

Diablo

PachecoElSobrante

Saranap

Crockett

CaminoTassajara

Clyde

Kensington

VineHill

Contra CostaCentre






DRAFT - 2021 Supervisorial DistrictsOverview Map and Data - Proposed Map: C


1.05%4.82%

-4.33%

2.47%

-4.00%-5.0%-2.5%0.0%2.5%5.0%



40.2% 21.8% 14.1% 17.3% 6.6%19,799 133,531 3,879 71,377 16,292

8.1% 54.5% 1.6% 29.1% 6.7%69,894 82,114 27,194 27,066 17,219

31.3% 36.7% 12.2% 12.1% 7.7%50,573 126,832 7,128 36,576 18,267

21.1% 53.0% 3.0% 15.3% 7.6%80,142 62,008 27,491 38,769 15,849

35.7% 27.7% 12.3% 17.3% 7.1%315,425 455,881 98,999 214,548 83,216

27.0% 39.0% 8.5% 18.4% 7.1%

District 5 224,259

County 1,168,069

District 3 223,487

District 4 239,376

District 1 236,069

District 2 244,878


25.0% 32.4% 19.4% 18.6% 4.6%9,962 112,518 2,542 31,023 4,632

6.2% 70.0% 1.6% 19.3% 2.9%34,337 72,617 19,606 14,549 7,430

23.1% 48.9% 13.2% 9.8% 5.0%23,802 111,801 5,309 20,538 7,283

14.1% 66.3% 3.1% 12.2% 4.3%34,470 58,730 18,944 23,451 7,202

24.1% 41.1% 13.3% 16.4% 5.0%137,716 401,098 73,684 115,599 32,968

18.1% 52.7% 9.7% 15.2% 4.3%

District 5 142,797

County 761,065

District 2 160,677

District 3 148,539

District 4 168,733

District 1 140,319

SanRiver

StraitCarquinez

BigBreak



BrionesReservoir

San Pablo Reservoir

CliftonCourt

Forebay

FranksTract

HonkerBay

SuisunBay

SanPablo

Bay

SanFrancisco

Bay

Joaquin

Old Riv

er

Sacramento River

Naval

ByronAirport


MtDiablo

Buch-ananAirport

Chevron

Marathon

Philips66


West Co.Landfill

Martinez

MorganTerritory

TassajaraValley

AgriculturalCore

ByronTract

ConeyIsland

QuimbyIsland

OrwoodTract

PalmTract

VealeTract

BixlerTract

HollandTract

JerseyIsland

BradfordIsland

WebbTract

WinterIsland

BrownsIsland

FranklinCanyon


Hills

Briones

Canyon

SandmoundSlough

Refinery Former

Weapons

Concord

Station

BethelIsland

Kensington

El Sobrante

Rodeo

Crockett

Alamo

Knightsen

DiscoveryBay

Byron

BayPoint

Pacheco

Blackhawk

Diablo

PortCosta

Clyde

NorthRichmond

Saranap

ContraCostaCentre

MtView

VineHill

TaraHills

MontalvinManor

Bayview


San Miguel

NorthGate

Reliez

AlhambraValley

Rollingwood

ShellRidge

Camino Tassajara

NorrisCanyon

Valley

AcalanesRidge

CastleHill

HERCULES

PINOLE

RICHMOND

MARTINEZ

CONCORD

PLEASANTHILL

WALNUTCREEK

LAFAYETTE

CLAYTON

ANTIOCHOAKLEY

BRENTWOOD

SANRAMON

ORINDA

MORAGA

ELCERRITO

SAN PABLO

PITTSBURG

DANVILLE

ANTIOCH

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BERKELEY

OAKLAND

SANFRANCISCO

DUBLIN

ALAMEDA

ALBANY

BENICIA

VALLEJO


TRACY


MountainHouse





92733.97%

112644.82%

-11568-4.95%

-11425-4.89%

All ofPinole

to District 1

24551.05%

3

1

2

4

5

SanRamon

Valley

WALNUT CREEK

ReliezValley

PINOLECONCORD

ANTIOCH

Concord split at former railroad right-of-way,

Hwy 242, Hwy 4Pittsburg's 'Tuscany Meadows'

annexation to District 5.Antioch split at Somersville Rd,

Auto Center Dr,UP railroad

WALNUTCREEK

MorganTerritory

MorganTerritory Rd



CONTRA COSTA COUNTY

¯0 5 102.5Miles


CurrentDistricts


TotalVariance9.77%

DRAFT - 2021 Supervisorial DistrictsDetailed Map - Proposed Map:D


CONTRA COSTA COUNTY

352

1 4



9.77%Total Variance

2021 PopulationPopulation: 1,168,069Equal Distribution: 233,614Citizen Voting Age Population(CVAP): 761,065

CONCORD1 5

24

3

ANTIOCH

OAKLEY

SANRAMON

RICHMOND

DANVILLE

ORINDA

WALNUTCREEK

PITTSBURG

LAFAYETTE

MARTINEZ

BRENTWOOD

MORAGA

PINOLEHERCULES


EL CERRITO

SANPABLO

ByronAlamo

Knightsen

BethelIsland

Blackhawk

BayPoint

DiscoveryBay

Rodeo

Diablo

PachecoElSobrante

Saranap

Crockett

CaminoTassajara

Clyde

Kensington

VineHill

Contra CostaCentre





Population by District Population Variance Percentage by District

DRAFT - 2021 Supervisorial DistrictsOverview Map and Data - Proposed Map: D


1.05%4.82%

-4.95%

3.97%

-4.89%-5.0%-2.5%0.0%2.5%5.0%



40.2% 21.8% 14.1% 17.3% 6.6%19,799 133,531 3,879 71,377 16,292

8.1% 54.5% 1.6% 29.1% 6.7%69,542 81,031 27,904 26,345 17,224

31.3% 36.5% 12.6% 11.9% 7.8%51,722 128,353 7,243 36,979 18,590

21.3% 52.8% 3.0% 15.2% 7.7%79,345 61,570 26,666 39,087 15,521

35.7% 27.7% 12.0% 17.6% 7.0%315,425 455,881 98,999 214,548 83,216

27.0% 39.0% 8.5% 18.4% 7.1%

District 5 222,189

County 1,168,069

District 3 222,046

District 4 242,887

District 1 236,069

District 2 244,878


25.0% 32.4% 19.4% 18.6% 4.6%9,962 112,518 2,542 31,023 4,632

6.2% 70.0% 1.6% 19.3% 2.9%33,432 71,479 20,136 14,262 7,515

22.8% 48.7% 13.7% 9.7% 5.1%24,248 113,490 5,383 20,841 7,422

14.1% 66.2% 3.1% 12.2% 4.3%34,929 58,179 18,340 23,435 6,978

24.6% 41.0% 12.9% 16.5% 4.9%137,716 401,098 73,684 115,599 32,968

18.1% 52.7% 9.7% 15.2% 4.3%

District 5 141,861

County 761,065

District 2 160,677

District 3 146,824

District 4 171,384

District 1 140,319

contra costa county detailed map - proposed map: a

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