Chicago Data Portal

data.cityofchicago.org ↗

Chicago's public dataset catalogue

Visit site ↗ Save

SI Score: 20/100
Pricing: Not confirmed
Free plan: Not confirmed
Sign-up required: Not confirmed

Open Data chicago

Ask SI about Chicago Data Portal

Answers use saved listing facts and recorded sources.

What it does

Chicago's Data Portal provides catalogue browsing, tutorials and developer documentation.

The city's data terms explain use conditions and source responsibilities. A dataset's own documentation remains important when moving from a map or filtered view to its underlying data.

Best for

Reaching Chicago’s data catalogue and tutorial

Sources

City of Chicago | Data Portal | City of Chicago | Data Portal (Oct 26, 2026)
City of Chicago :: Data Terms of Use (Oct 26, 2026)
Catalog | City of Chicago | Data Portal (Oct 26, 2026)

SI Score

20/100

#178 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 20

Evidence

The retained homepage identifies data-browsing and learning tasks but does not reveal catalogue records or specific controls. The task-named anchor20 is appropriate.

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.cityofchicago.org/
- Product usefulness evidenceChecked Oct 26, 2026
www.chicago.gov/city/en/narr/foia/data_disclaimer.html
- Product usefulness evidenceChecked Oct 26, 2026

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