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Contra Costa
California

1.2M

Population

$120K

Median Income

$790K

Median Home

D+35

Politics

Economy

Median Household Income$120K

This county

national avg ~$75K

Poverty Rate8.7%

This county

national avg ~11.5%

Unemployment Rate3.5%

This county

national avg ~3.8%

GDP per Capita$82,417

Federal Spending per Capita$748

Median Individual Earnings$62K

This county

national avg $45K

Professional/Management Workers47.1%

Average Adjusted Gross Income$144K

Avg Credit Score700

Work From Home %17.0%

This county

national avg 17.0%

Population Under 1822.2%

This county

national avg 22.0%

Single-Person Households22.0%

This county

national avg 28.0%

Banks & Finance Firms596

Income (20th Percentile)$50K

Income (80th Percentile)$237K

Income (95th Percentile)$250K

Bachelor's Degree or Higher34.5%

This county

national avg 35.0%

Less Than High School10.3%

This county

national avg 11.0%

Knowledge Economy GDP %23.1%

Dependency Ratio1.01

Medicare Spending / Person$2,759

SS Benefits / Person$3,542

Education Wage Premium2.62x

Median Earnings (Bachelor's)$91K

Median Earnings (Graduate)$118K

Median Earnings (HS Diploma)$45K

Public Assistance Recipients2.8%

Average Annual Wage$86K

Professional Services Concentration0.98x national

This county

1.0 = national average share

Housing

Median Home Value$788K

This county

$790K state avg

$303K national

Median Sale Price$743K

This county

$303K national

Market Rent (ZORI)$2772/mo

This county

$2300/mo state avg

$1400/mo national

Property Tax Rate0.84%

This county

0.71% state avg

1.10% national

Annual tax on median home: $6,654

Affordability & Supply

HUD Fair Market Rent (2BR)$2,912/mo

Home Price Change (1 yr)-0.0%

Home Value to Income Ratio5.7x income

Severely Cost-Burdened Households15.8%

Homeownership Rate67.2%

This county

national avg ~65%

Market Activity

Sale-to-List Ratio— Sellers market — homes selling above list

101.1%

Listings with Price Cuts— Low — market moving fast

18.9%

Sold Above List Price

46.7%

Median Days to Close

22 days

Active Listings

2,440

New Listings / Month

1,056

Source: Zillow Research · Updated monthly

Days on Market (Redfin)— Fast market

18 days

Months of Supply (Redfin)— Low inventory — sellers market

2.3 mo

Sold Above List (Redfin)— Competitive — many homes bid up

49.6%

Sale-to-List Cross-Reference

Zillow 101.1% · Redfin 102.1%

Source: Redfin · Updated monthly

Health

Life Expectancy81.6 yrs

This county

national avg ~78.5 years

Hospital Rating3.0 / 5

This county

national avg 3.0 stars

Food Insecurity7.5%

This county

national avg ~11%

Food Environment Index9.0 / 10

This county

higher = better access

Primary Care Shortage Score21

This county

national avg 5

Mental Health Shortage Score12

Dental Care Shortage Score25

Healthcare Shortage Score19.3

Healthcare Offices2,342

Obesity Rate (BRFSS)27.8%

This county

national avg 32.0%

Smoking Rate (BRFSS)9.3%

This county

national avg 14.0%

Poor Health Rate (BRFSS)17.6%

This county

national avg 18.0%

Physical Inactivity (BRFSS)22.7%

This county

national avg 24.0%

High Blood Pressure (BRFSS)27.5%

This county

national avg 32.0%

Active Physicians3,959

Nursing Home Rating3.7 / 5

This county

national avg ~3 stars

ER Visits per 1,000 Medicare Patients621 / 1,000

Medicare Cost per Beneficiary$11,480

Uninsured (under 65)5.0%

This county

national avg ~10%

Adults with Depression19.7%

Education

Math Test Scores2.84 grade level

Reading Test Scores2.98 grade level

HS Diploma Holders123,642

Bachelor's Degree Holders66,886

HS Completion Rate89.7%

This county

national avg ~85%

Private Schools494

Safety

Violent Crime Rate3.1 / 1,000

This county

national avg ~4.0

Firearm Fatality Rate8.1 / 100K

This county

national avg ~13.6/100K

Homicide Rate5.8 / 100K

This county

national avg ~7.5/100K

Drug Overdose Rate19.1 / 100K

This county

national avg ~21/100K

Traffic Fatalities96

Social Vulnerability (CDC SVI)48th pct

Drug Overdose Deaths (2024)18.3 / 100K

Suicide Rate9.2 / 100K

This county

national avg ~14/100K

Climate & Air Quality

Natural Amenity Scale8.4

January Sunshine0.59

January Temperature1.36

Average Temp61°F

Avg High Temp72°F

Avg Low Temp50°F

Median AQIAQI 51

Good Air Days173 days/yr

Unhealthy Air Days2 days/yr

Annual Precipitation14.2 in/yr

Avg Storm Events4.0 storms/yr

Avg Annual Storm Damage$0K

Ozone Days94 days/yr

This county

national avg 50 days/yr

Drought Index (2022)-1.24

Heating Degree Days2,390 HDD/yr

This county

national avg ~4,500 HDD/yr

Cooling Degree Days869 CDD/yr

This county

national avg ~1,200 CDD/yr

Heating Degree Days (1901–2000 Baseline)2,903 HDD/yr

Cooling Degree Days (1901–2000 Baseline)667 CDD/yr

Avg Tornadoes / Year0.0

Avg Flood Events / Year2.8

Avg Hail Events / Year0.4

Avg Hurricane Events / Year0.00

Avg Wildfire Events / Year0.6

Avg Winter Storms / Year0.0

Avg Heat Events / Year0.0

Natural Hazard Risk (FEMA)100 / 100

Community Resilience (FEMA)75 / 100

Federal Disaster Declarations21 since 1953

Fine Particulate Pollution (PM2.5)11.1 µg/m³

This county

EPA standard 9 µg/m³

Outdoor & Recreation

National Park Units4 units

Historic Places (NRHP)51 properties

FAA-Registered Airports6 total

Airports (excl. heliports)4 airports

Brewery Scene

Total Breweries17 breweries

Microbreweries11 microbreweries

Brewpubs4 brewpubs

Internet & Remote Work

Download Speed297 Mbps

This county

national avg ~120 Mbps

Upload Speed86 Mbps

Fixed Internet (Q1 2026)411 Mbps

Mobile Internet (Q1 2026)246 Mbps

Mobile Upload (Q1 2026)22 Mbps

Mobile Latency (Q1 2026)27 ms

Households with 100Mbps+99.1%

This county

national avg 75.0%

Cellular-Only Internet8.7%

This county

national avg 8.0%

Fixed Upload Speed (Q1 2026)152 Mbps

EV Infrastructure

EV Charging Stations346 stations

DC Fast Chargers489 chargers

Level 2 EV Chargers789

Commute & Transit

Remote Workers94,450 workers

Public Transit Commuters42,102 workers

Walk to Work9,665 workers

Extreme Commutes (90+ min)37,346 workers

Avg Commute Time30.5 min

This county

national avg ~27 min

Bike Commuters0.4%

Walk to Work1.7%

Families & Childcare

Childcare Cost Burden29.7%

This county

national median ~27% of household income

Childcare Centers8.5 per 10K residents

Childcare Facilities390

Civic & Community

Voter Turnout75.1%

This county

national avg ~55%

Volunteering Rate1.0%

Income Inequality (Gini)4.745

Nonprofit Organizations4,076

Veterans Share4.6%

This county

national avg 7.0%

Married Adults52.9%

Never-Married Adults33.1%

Divorced Adults9.1%

Religious Organizations303

Asian Population18.3%

Native American Population0.7%

Membership Associations5.5 per 10K residents

Lifestyle & Services

Full-Service Restaurants0.68 per 1K residents

Colleges & Universities9

Nursing & Care Facilities418

Grocery Stores301

Arts & Entertainment Venues135

Hotels & Lodging84

Recreation Businesses312

Professional Services Firms3,889

Veterinary Practices253

Real Estate Firms1,623

Museums10

Debt Burden

Avg Mortgage Balance$130K

Avg Student Loan Balance$10K

Avg Credit Card Balance$5K

Loan Delinquency Rate35.7%

This county

national avg 4.0%

Innovation

Inventor Rate0.39%

Politics

D+35

2024 Presidential · California was D+20 statewide

vs California State

Income tax

13.3%Same (state law)

Property tax

0.84%0.71% state avg

Politics

D+35D+20

COL Index

County data142 (state)

Population & Migration

IRS Wealth Migration

Wealthier people moving in (IRS: 1.13x avg income)

Economic Mobility

44%

chance a low-income child reaches the middle class

Source: Opportunity Insights

Real Estate

Find Homes in Contra Costa County

Median home value: $790K

View on Zillow →View on Realtor.com →

Opens in a new tab

Local News — Contra Costa

Contra Costa Herald · 1 hour ago

Court appoints “special master” for West Contra Costa Unified

By Diana Lambert, EdSource, republished with permission. Carl Cohn, a former superintendent and stat…

Sacramento Bee · 4 days ago

Breaking: Country Fire reported in Contra Costa County on Aug. 29

The creation of this content included the use of AI based on templates created, reviewed and edited …

Contra Costa News · 1 day ago

Deer Valley Road Traffic Safety Improvements Project Set to Begin

Antioch and Brentwood, CA – Contra Costa County Public Works will perform road traffic safety improv…

National Nurses United · Jun 23, 2026

Contra Costa County nurses to hold informational picket to preserve patient services and nurse retention

“We do this because we are committed to our patients and to the mission of Contra Costa Health to ca…

Patch · 2 days ago

These Oktoberfests Will Raise The First Stein In Contra Costa

Two Contra Costa celebrations promise German beer, music, and surprises, but one starts the season w…

Contra Costa County (.gov) · Jun 6, 2026

Contra Costa FOCUS Newsletter

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Data: Census ACS, BLS, Zillow, USDA Natural Amenities, OpenElections 2024, CMS, NCES. Vintage 2022–2025. News via Google News.

Contra CostaCalifornia

Contra Costa
California