#45 California · 2026

Contra Costa County, California

37 · low-moderate county distress more distressed than 37% of U.S. counties · 45th of 58 counties in California · 1,155,025 residents How this is calculated →
The headline number
27% Contra Costa residents
vs.
18% U.S. median

Above the national median for severe rent burden (50%+).

U.S. Census Bureau, ACS 5-year (2024)

Main Findings

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Contra Costa County, California is more distressed than 37% of U.S. counties on the County Distress Index. Contra Costa sits near the national median across major distress indicators. Its highest-scoring domain is Debt Burden (housing basis) and its lowest is Safety Net & Buffer.

Key Findings
  • 45th of 58 counties in California on the County Distress Index — 37 · low-moderate county distress, more distressed than 37% of U.S. counties.
  • 27% of renter households pay 50%+ of income on rent (U.S. median 18%). Severe rent burden (50%+) at the 91st percentile nationally. Source: U.S. Census Bureau, ACS 5-year (2024).
  • Unemployment (average of monthly rates) at 5% — national median 4%, ranked at the 71st percentile. Source: U.S. Bureau of Labor Statistics, LAUS (monthly rates averaged, September 2025 to August 2026; no figures published for October 2025).
  • Delinquency domain score 29 — weight 20.0% of the CDI composite. Source: American Default Research.
  • Default & Legal domain score 28 — weight 20.0% of the CDI composite. Source: American Default Research.
Distinctive Signals
Boundary Signal

Neighbors span three CDI score labels. The 45-point drop to Alameda County marks where the Bay Area distress corridor ends.

County Distress Index cluster map. Contra Costa County, California and its neighbors colored by county distress score label.
Contra Costa and its 4 geographic neighbors, graded by County Distress Index score. Contra Costa County is more distressed than 37% of U.S. counties. American Default Research
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Contra Costa County has a low-moderate county distress score. The CDI reading is a county comparison, separate from national ADI bands.

— American Default Research
Index note — for feature use 35 words

The CDI gives this county a low-moderate county distress label. The label comes from the score, while the rank compares the county with the current national cross-section. Its highest-scoring domain is Debt Burden (housing basis).

— American Default Research

Indicator History

Period-correct raw indicators from the county-history panel. The CDI composite is excluded because it is a current cross-sectional score.

Updated Sep 22, 2026
BLS 1990 to 2025

Unemployment rate

4.8% +0.8 percentage points since 1990
Census 1989 to 2024

Poverty rate

8.5% +1.6 percentage points since 1989
U.S. Bureau of Economic Analysis 1969 to 2024

Transfer income share

12.4% +5.4 percentage points since 1969
Equifax data retrieved via FRED 2014 Q2 to 2025 Q4

Subprime credit population

17.6% -5.73 percentage points since 2014 Q2

The Indicators Behind Contra Costa County's CDI Score

Every number traces to a public source. Contra Costa County's value shown alongside CA's median and the U.S. median. Full CSV available for download.

How to read the table. A domain score is a 0–100 composite of the indicators in that domain; higher values represent a higher mean of distress-oriented indicator percentiles. A county's domain rank is computed separately against all counties. Percentile is Contra Costa County's national rank among all 3,144 U.S. counties for that indicator, always oriented so higher = more distressed.
Indicator Contra Costa CA median U.S. median Pctile Source
Delinquency — domain score 29 · Rank 2,300 of 3,144
Auto loan delinquency Share of auto loan accounts 60+ days past due 4% 4% 5% 36th Urban Institute Debt in America (2025)
Credit card delinquency Share of credit card accounts 60+ days past due 4% 5% 5% 27th Urban Institute Debt in America (2025)
Subprime credit share Share of residents with a credit score below 660 18% 20% 23% 23rd Equifax data retrieved via FRED (2025)
Default & Legal — domain score 28 · Rank 2,472 of 3,144
Debt in collections Share of residents with a credit file who have debt in collections 14% 18% 23% 16th Urban Institute Debt in America (2025)
Bankruptcy filing rate Personal bankruptcy filings per 100,000 residents 108 119 126 40th Administrative Office of the U.S. Courts, F-5A (2025)
Debt Burden (housing basis) — domain score 90 · Rank 147 of 3,144
Rent-to-income ratio Fair Market Rent (2BR) as share of median household income 27% 27% 21% 90th U.S. Department of Housing and Urban Development Fair Market Rents (FY2027); U.S. Census Bureau, SAIPE (2024)
Severe rent burden (50%+) Share of renter households paying 50%+ of income on rent 27% 26% 18% 91st U.S. Census Bureau, ACS 5-year (2024)
Labor — domain score 58 · Rank 1,237 of 3,144
Adults 25-54 not working Share of adults aged 25 to 54 without a job, leaving out residents of prisons and other institutions (service members count as working) 20% 23% 21% 46th U.S. Census Bureau, ACS 5-year (2024)
Unemployment (average of monthly rates) Share of labor force unemployed, averaged over the monthly rates published for September 2025 to August 2026 (no figures published for October 2025) 5% 6% 4% 71st U.S. Bureau of Labor Statistics, LAUS (monthly rates averaged, September 2025 to August 2026; no figures published for October 2025)
Safety Net & Buffer — domain score 9 · Rank 3,025 of 3,144
Child poverty rate Share of children under 18 below the federal poverty line 10% 16% 17% 11th U.S. Census Bureau, SAIPE (2024)
Disability rate Share of residents reporting a disability 11% 13% 16% 9th U.S. Census Bureau, ACS 5-year (2024)
Poverty rate Share of population below the federal poverty line 8% 13% 13% 12th U.S. Census Bureau, SAIPE (2024)
Uninsured rate Share of residents without health insurance coverage 5% 6% 8% 14th U.S. Census Bureau, ACS 5-year (2024)
Compiled September 30, 2026 from Urban Institute Debt in America (2025 panel), U.S. Census Bureau (ACS 5-yr 2024, SAIPE 2024, Business Formation Statistics 2025), U.S. Bureau of Labor Statistics (LAUS August 2026, QCEW 2025), Administrative Office of the U.S. Courts (F-5A bankruptcy filings 2025), and HUD Fair Market Rents (FY2027).

Five-Domain Breakdown

The CDI is an equal-weight composite of five family-v1 distress domains. Each domain contributes 20% of the county score.

Debt Burden (housing basis) Primary driver 90
Weight 20% · Rank 147 of 3,144
Labor 58
Weight 20% · Rank 1,237 of 3,144
Delinquency 29
Weight 20% · Rank 2,300 of 3,144
Default & Legal 28
Weight 20% · Rank 2,472 of 3,144
Safety Net & Buffer 9
Weight 20% · Rank 3,025 of 3,144

Methodology

The County Distress Index scores household financial distress from 0 to 100 for all 3,144 U.S. counties. A county's score is the share of U.S. counties it is more distressed than. The index is built from five equal-weighted domains: Delinquency, Default & Legal, Debt Burden, Labor, and Safety Net & Buffer. Each domain is the mean of distress-oriented indicator percentiles; the five domains are averaged, and that average is ranked against every other county to give the score.

Data sources include the Urban Institute Debt in America (Equifax consumer credit panel), Equifax data retrieved via FRED (subprime credit share), U.S. Census Bureau (American Community Survey 5-year, Small Area Income and Poverty Estimates), U.S. Bureau of Labor Statistics (Local Area Unemployment Statistics), Administrative Office of the U.S. Courts (F-5A bankruptcy filings), and U.S. Department of Housing and Urban Development Fair Market Rents. Data vintages range from 2024 to 2027 depending on source; full indicator-level vintage detail is in the methodology document.

For Press & Research

Everything you need to cite Contra Costa County data.

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Press contact: Ross Kilburn · press@americandefault.org · (307) 264-2992 · media inquiries welcome
Draft wire copy 126-word AP-style article — use freely with attribution
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MARTINEZ, Calif. — Contra Costa County is more distressed than 37% of U.S. counties, according to the County Distress Index released this month by American Default Research.

Contra Costa scores 37 out of 100, which means it is more distressed than 37% of U.S. counties; its score label is low-moderate county distress. Within California, Contra Costa ranks 45th of 58 counties.

The index, which draws on 14 source indicators from the U.S. Census Bureau, Bureau of Labor Statistics, Urban Institute and federal court filings, finds Contra Costa sitting near the national median across major distress indicators, with no single domain emerging as a clear driver.

American Default Research founder Ross Kilburn is available for interview at press@americandefault.org.

Full methodology and county-by-county data are available at americandefault.org/methodology/cdi.

— 30 —

Frequently Asked Questions

What is Contra Costa County's CDI score, and what does it mean?

Contra Costa County scores 37 out of 100 on the County Distress Index, which means it is more distressed than 37% of U.S. counties. Its score label is low-moderate county distress. It ranks 45th of 58 California counties. Higher county scores indicate more distress.

What drives Contra Costa County's distress score?

The highest-scoring domain is Debt Burden (housing basis), at a domain score of 90. Severe rent burden (50%+) ranks at the 91st percentile nationally.

How does Contra Costa County compare to its neighbors?

Contra Costa County's neighbors span three CDI score labels. Highest-distress neighbor: San Joaquin County (72.00, high county distress). Lowest: Alameda County (27.00, low county distress).

How is the County Distress Index calculated?

The CDI averages 14 source indicators across five equal-weighted domains: Delinquency, Default & Legal, Debt Burden, Labor, and Safety Net & Buffer, then ranks that average against every other county, so the score is the share of U.S. counties a county is more distressed than. Data comes from Urban Institute, Census Bureau, BLS, U.S. Courts, U.S. Department of Housing and Urban Development, and related public sources. Full methodology →
Ross Kilburn
Written by

Ross Kilburn, Founder

Founder · American Default Research · Seattle, Washington

Ross Kilburn is the former COO of Ark Law Group, a foreclosure defense firm serving five states. He founded Seattle Short Sales, wrote Short Sale Your Home, and worked as a mortgage loan originator and real estate agent. He founded American Default Research in 2026.

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