Cook County board changes

40 changes observed across 32 associations in Cook County, Illinois, which is 38.1% of everything on file for Illinois.

Refresh cadence not publishedData freshness

The newest change on file was observed on September 1, 2026. We do not publish a refresh schedule for this state.

The most recent change observed in Cook County itself was on September 1, 2026. A quiet county is normal, and it says nothing about whether collection is running.

Changes observed

Most recent on September 1, 2026

Associations affected

Distinct associations with at least one change

38.1%

Share of state

Of 105 changes across Illinois

1st

Rank in state

Of 23 counties with an observed change

By change type

Each bar shows what share of the 40 changes observed here came from one type. The figure beside it is the same type measured across all of Illinois, so a gap between the two is a local signature rather than a statewide pattern.

License lapsed22 · 19 associations
55.0% of changes here, 55.2% across Illinois
License added18 · 17 associations
45.0% of changes here, 44.8% across Illinois

How Cook County compares

Cook County holds 38.1% of the 105 changes on file for Illinois, ranking 1st of 23 counties with any observed change.

Associations here that changed at all changed 1.3 times on average, against 1.2 statewide. That is effectively the state average, so the county's volume is a function of its size rather than unusual churn.

The mix of change types here tracks the Illinois average closely, with no type running more than three points above the statewide share.

All 23 Illinois counties

Which associations, and when

The change feed names the association behind each of these counts, the seats that moved and the date it was observed, and can email you when a new match appears in Cook County.

See what the change feed tracks

How these numbers are produced

What a change is: An observed difference between two snapshots of the public record: a director arriving, a director leaving, a title moving between seats, a president handing over, a registration status changing. One filing that replaces three directors counts as the changes it contains, not as one event.
Where it comes from: State corporate and regulatory filings that associations are required to make. Nothing here is surveyed, modelled or estimated. A change appears when a source publishes it, which is usually after the board itself changed, so these counts trail reality rather than predicting it.
What an association count means: The number of distinct associations with at least one observed change, not the number of associations in Cook County, Illinois. A rate of changes per association is therefore an intensity measure across the affected set only.
What is deliberately not here: No association is named, no officer is named, and no individual contact information appears on these pages. They report how much and where. Which association, and when, is the paid change feed.
Observed through: The newest change counted on this page was observed on September 1, 2026. Figures describe what a source published on a given date, not a legal determination of who holds an office.