How to get in touch with the nearest Jefferson County Library Reference Department:

"Information is our business."

TXT 4 ANSWERS @ 309-222-7740
*Normal text messaging rates apply*

On the go and need an answer? Text your question along with the Library code JCL to an InfoQuest librarian and have the answer delivered to your phone with My InfoQuest.  You will receive an answer in minutes Monday through Friday 8am to 10pm and Saturday from 9am-5pm. 

Likewise, you may contact us directly at the addresses below.

Arnold Branch
1701 Missouri State Rd.
Arnold, MO 63010
Phone: 636-296-5171
Fax: 636-296-5975
Reference e-mail
More contact information

Northwest Branch
3033 High Ridge Blvd.
High Ridge, MO 63049
Phone: 636-677-8186
Fax: 636-677-8423
Reference e-mail
More contact information

Windsor Branch
7479 Metropolitan Blvd.
Barnhart, MO 63012
Phone: 636-461-1914
Fax: 636-461-1915
Reference e-mail
More contact information