Local answers · official sources

County of Rock Island

Name: County of Rock Island Census government inventory record
Creator: Electionpedia

For court-service inquiries, use the circuit clerk’s office below. This is not the county election clerk or a judge’s personal contact.

Census ID 102554 · Census county field: Rock Island · Functioning in the 2025 inventory

For residents

Contact the circuit clerk

14th Judicial Circuit · Directory checked 2026-10-09

Rock Island County Circuit Clerk

309-558-3538. Published mailing address: P.O. Box 5230, Rock Island, Illinois 61201-5230. Confirm office hours and where to attend or file with the clerk before visiting. This directory does not establish a hearing location, judge roster, or current officeholder term.

Illinois circuit-clerk office directory

Call the Rock Island circuit clerk 309-558-3538 Check the official directory Confirm the office’s latest published details with Illinois Courts.

Sources & verification dates

Illinois circuit-clerk office directory ↗State of Illinois Office of the Illinois Courts · Checked 2026-10-09

The source record

Listed as functioning in 2025.

The Census ACTIVE field is Y for this record.

Census ID: 102554
Record type: General-purpose government
Classification: County
Status: Functioning

2025 Census snapshot

Reported contact and location fields

Reported mailing address1504 3RD AVE · ROCK ISLAND, IL · 61201-8612

Reported contact roleExecutive Assistant

A role label, not a verified person’s name.

Census county fieldRock Island

Reported websiteOpen listed website ↗

These are inventory fields, not newly verified office contacts. A county field or mailing address does not establish the exact service boundary.

Published context

Scale and parent relationship

Population estimate141,2362023

About these sources and their limits

Evidence boundary

What each source proves—and what it does not.

Established by the published records

The entity or system appears in the 2025 Census listing.
Its Census category, identifier, and functioning/dormant field.
Only the location, function, population, enrollment, and contact fields actually published.

Not established by these records

Whether each governing or administrative role is elected, appointed, or mixed.
The exact geographic service boundary or that a reported website remains current.

Reading guideLocal government

How to interpret this record

County of Rock Island, IL — Public Resources

Local government is a collection of institutions with different boundaries and responsibilities. A municipality, school district and special district can serve overlapping places without being the same organization.

Map the institution, not just the city name

A mailing address can sit inside several governmental boundaries. A county, municipality, school district and special-purpose body may each make different decisions. The Census of Governments provides a structured way to identify governmental units; a unit’s existence does not automatically tell you who currently holds each seat or when its next election occurs.

Distinguish a directory from a live roster

An institutional directory describes organizations. An official roster describes people connected to offices at a stated time. These sources may be published by different agencies on different schedules. Electionpedia links the institution and the person when the evidence supports a match, while preserving the distinction between the source’s reference year and the latest date the file was checked.

Read the full local government guide →