Welcome to Warren County

Warren County Treasurer
100 W. Broadway
309-734-8536 (fax 309-734-0313)
Monmouth, IL 61462
Monday - Friday, 8 - 4:30 P.M.


Kathy L Tate
   Warren County Treasurer
   Description currently not available.
   contact info


The Warren County Treasurer’s office is located on the 2nd floor of the courthouse.


Real Estate Taxes due dates are as close to June 1st and September 1st as possible annually. The Tax Sale is held the 3rd Monday of October each year. We have a County Trustee program and all unsold parcels are purchased by the Trustee. All redemptions made after the Sale are made directly to the County Clerks office (309/734-4612).
We will have a Sealed Bid Sale of County Trustee parcels. Check with the Treasurer each year for the date. Auction books are available for purchase at the Treasurer's Office.

COLLECTION DATES FOR 2014 pay 2015 R.E. Taxes:
1st installment - June 29, 2015
2nd installment - Sept. 3, 2015
Delinquent Tax Sale - Oct. 19, 2015 @ 9:00 A.M. - County Board Room
Trustee Sealed Bid - July 17, 2015

MOBILE HOME TAX COLLECTION: Mobile Home tax bills for 2015 were mailed on Feb. 23, 2015 due on May 1, 2015. There is a $25.00 monthly delinquent fee after May 1, 2015.

ANIMAL CONTROL: Warren County Dog Registrations are due within 30 days of the vaccination for $10.00. Tags are due annually on the anniversary date of registration. Late fees are: From 31 days to 90 days the fee is $20.00. From 91 days to 180 days the fee is $25.00. From 181 days to 365 days is $30.00. After this period it is necessary to call the Treasurer office.
Warren County has a spayed/neuter ordinance in effect. By the dog's second registration the dog must be altered or an ANNUAL FEE of $45.00 is imposed. Registration may be handled by mail if it is not convenient to come to the office.

The Warren County Treasurer’s Office offers a payment option through E-Pay. To pay your Warren County taxes over the Internet using most major credit cards:
1. Log on to the www.illinoisepay.com  website.
2. Enter “Warren County Treasurer” in the search box, and click the search button.
3. Click on the link to the “Warren County Treasurer’s Office E-Pay site”.
4. Click on the tax payment link near the bottom of the page.
5. Fill in the payment information as prompted.
6. Receive a payment confirmation number for your records.
There will be a convenience fee charge for using this system. A full convenience fee disclosure statement is available at: www.illinoisepay.com 
(The E-Pay program is administered by Illinois State Treasurer. Paid for by the Illinois Funds.


Real Estate Tax Collection
Mobile Home Tax Collection
Sealed Bid Sale
Animal Control Registration (Dog Tags)
Online Tax Payment

Copyright © 2005 Warren County