Mercer County marriage license — office, fees & hours
How to get a marriage license in Mercer County, Illinois: the issuing office, its address, phone and hours, the current fees, and how applying in person works.
Where to apply in Mercer County
| Office | Mercer County Clerk & Recorder |
|---|---|
| Address | 100 SE. 3rd Street Aledo 61231 |
| Phone | (309) 582-7021 |
| Office hours | Monday–Friday 8:00am–4:00pm |
| Website | https://www.mercercountyil.org |
Good to know
Applications are taken at the county clerk & recorder, 100 SE. 3rd Street, Aledo 61231. The office is open Monday–Friday 8:00am–4:00pm. Both parties normally apply in person, so confirm current requirements with the clerk before your visit.
How the process works
Both people appear together in person with valid government photo ID. Illinois marriage licenses are issued by the county clerk where the ceremony will take place, become usable one day after issuance and expire after 60 days. Confirm anything time-sensitive with Mercer County Clerk & Recorder before you travel, because office hours and fees can change.
Questions people ask
Where do I get a marriage license in Mercer County?
In person at the Mercer County Clerk & Recorder, 100 SE. 3rd Street (Aledo, IL 61231).
What are the Mercer County Clerk & Recorder hours?
Monday–Friday 8:00am–4:00pm
Other Illinois counties
Directory last checked 2026-10-24. Office details are gathered from official county sources — always confirm current hours and fees before visiting.