California Open Data

data.ca.gov ↗

Open datasets from California state departments

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SI Score: 40/100
Pricing: Not confirmed
Free plan: Not confirmed
Sign-up required: Not confirmed

Open Data california

Ask SI about California Open Data

Answers use saved listing facts and recorded sources.

What it does

California's data portal groups state datasets, topics, organisations and developer documentation.

The visible catalogue includes crash records, power-outage information and well-completion reports. Their formats and update dates differ, so select the source record that matches the question rather than treat the portal as one uniform database.

Best for

Locating California state-agency datasets

Sources

California Open Data – Data.CA.gov (Oct 26, 2026)

SI Score

40/100

#32 in Open Data

Based on published information. No hands-on task test.

Method 2.0 · Saved catalogue only Assessed Oct 26, 2026Score ceiling for this evidence: 59/100.

Product usefulness 40

Evidence

State-department, topic and dataset routes with concrete records establish basic discovery. The homepage alone does not demonstrate a selected file’s controls or usable output.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

data.ca.gov/
- Product usefulness evidenceChecked Oct 26, 2026

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