---
title: Contra Costa, CA — natural hazard risk profile & national ranking
source: FEMA National Risk Index (county-level)
sourceUrl: https://hazards.fema.gov/nri/
fips: 06013
---

# Contra Costa, CA

California · pop. 1,165,466 · FIPS 06013

**FEMA risk rating: Very High** · dominant hazard: Earthquake · modeled expected annual loss $971M/yr

These risk dimensions are FEMA/CDC MODELS (a rating, not records of disasters); population is a recorded census figure.

## Where Contra Costa ranks among 3,232 U.S. counties

Each rank is COMPUTED — the county's modeled score placed within the national distribution. A rank within a model, not within observed disasters.

| Dimension | This county | National rank |
| --- | --- | --- |
| FEMA risk index | 99.49 | ≈ 99th pct — among the highest nationally (national median 50.02, n=3,144) |
| Expected annual loss | $971M | ≈ 100th pct — among the highest nationally (national median $15M, n=3,232) |
| Social vulnerability | 21.47 | ≈ 21st pct — among the lowest nationally (national median 50.03, n=3,144) |
| Community resilience | 67.81 | ≈ 68th pct — near the national middle (68th percentile) (national median 50.02, n=3,144) |

## Realized flood losses in Contra Costa (RECORDED — NFIP claims)

The National Flood Insurance Program has paid **1,202** flood-insurance claims totaling **$13M** in Contra Costa since 1978. The costliest year of loss was **2022** ($2M paid).

| Metric | Value |
| --- | --- |
| Total claims paid | $12,846,533 |
| Claims | 1,202 |
| Average claim | $10,688 |
| Largest single claim | $338,134 |
| Claims since 2000 | 455 |
| In high-risk flood zones (A/V) | 52% |

These are **RECORDED** actual paid NFIP claims (a redacted census from OpenFEMA), not a model — the realized counterpart to the FEMA risk score above. **Scope:** flood-*insurance* claims UNDERCOUNT flooding where owners were uninsured ("what NFIP paid," not "every flood"); county-level totals, not a per-property verdict. Source: OpenFEMA NFIP Redacted Claims v2 (`src:openfema:nfip-claims-v2:2026`). Verify an address and buy coverage at https://www.floodsmart.gov/.

## What this is — and is NOT (interpretation)

This is FEMA/CDC **modeled** hazard exposure for Contra Costa, CA and its national rank. It is **not** a verdict on whether Contra Costa is a good or bad place to live (hazard exposure is not place quality), **not** a per-property or per-address assessment, **not** a prediction of any specific disaster, and **not** insurance advice. For site-specific risk use a per-property assessment; for the model see https://hazards.fema.gov/nri/.

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Structured data (JSON-LD), with each figure's status labeled: `/property/counties/06013.jsonld`