Jefferson County Clerk
100 South 10th Street, Room 105, Mount Vernon, Illinois, 62864

Contact & location
- Address
- 100 South 10th Street, Room 105, Mount Vernon, Illinois, 62864
- Records for
- Jefferson County, Illinois
- Official site
- Government website ↗
Last verified July 14, 2026
This office issues Illinois state records
Jefferson County follows Illinois’s fees, eligibility rules and processing times. Compare the statewide baseline below before choosing where to go.
- $15.00
- Illinois birth certificate fee
- 12–15 weeks
- Statewide processing
- 12,710,158
- Illinois population
Office hours
| Monday | 8:00am - 4:00pm |
|---|---|
| Tuesday | 8:00am - 4:00pm |
| Wednesday | 8:00am - 4:00pm |
| Thursday | 8:00am - 4:00pm |
| Friday | 8:00am - 4:00pm |
| Saturday | closed |
| Sunday | closed |
Certificates, fees & processing
| Record | Fee | Processing |
|---|---|---|
| Birth Certificate | $15.00 | 12–15 weeksIllinois estimate |
| Death Certificate | $15.00 | 4–6 weeksIllinois estimate |
| Marriage Certificate | $15.00 | 0 daysIllinois estimate |
Processing times are set at state level — county offices do not publish their own — and are estimates that vary with demand.
The Jefferson County Clerk’s office or registry of vital records, offers a wide range of crucial services. These offices play a vital role in the protection and provision of essential documents such as birth certificates, death certificates, and marriage certificates . In addition to maintaining these primary records, they are responsible for managing and issuing copies of birth, marriage, and death records that occurred within the Township of Mount Vernon. Alongside record maintenance, this office provides valuable services like issuing certified copies of documents, overseeing the registration of domestic partnerships, and offering assistance to rectify any errors detected in vital records. Through these comprehensive services, the vital records office ensures the accuracy, accessibility, and integrity of vital records for the benefit of the community.
Reviews
★★★★★3.8 (10)- ★★★★★Jeff SotoGoogle
Best time I ever had in front of a judge!!! Thank you for helping me close this chapter in my life!!!🍻🍻🍻🍻🍻🍻🍻🍻🍻🍻🍻
- ★★★★★Tonya CollinsGoogle
Everyone at Jefferson Co Courthouse is so nice. I love when I get to go there for work.
- ★★★★★Brittney JamisonGoogle
You now have to subscribe to know when your next court date is. Jefferson county illinois has "improved" their system....HA. Who ever is changing the way things "work" for this county...bonding people out of jail, the lack of medical attention and food while incarcerated, automative recordings,etc... Is obviously some...