Probate in Warren County, Illinois: 2026 Guide

This guide is for educational purposes only and is not legal advice. Laws change frequently — verify current requirements with the Warren County probate court or an attorney.

Last updated: February 15, 2026

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Overview

Warren County is located in Illinois with a population of approximately 16,200. The Circuit Court of the Ninth Judicial Circuit, Warren County handles all probate and estate matters for decedents who were domiciled in the county at the time of death.

Illinois probate is governed by 755 ILCS 5/. The process begins with filing a Petition for Probate of Will and for Letters Testamentary (or Petition for Letters of Administration) to admit the will and appoint a personal representative. The court then issues Letters Testamentary for testate estates or Letters of Administration for intestate estates.

Illinois offers a Small Estate Affidavit for estates valued at $150,000 or less (excluding vehicles) that do not involve real estate.

Illinois law provides for reasonable compensation for representatives and attorneys, subject to court approval.

This guide provides an informational overview of the Warren County probate process. It is not legal advice and is not a substitute for consulting a qualified attorney. Laws and local procedures may change — verify current requirements with the court.

Courthouse Information

Circuit Court of the Ninth Judicial Circuit, Warren County

Probate matters in Warren County are handled at the Warren County Courthouse.

Address: 100 W. Broadway, Monmouth, IL 61462

Phone: (309) 734-5179 (Circuit Clerk)

Hours: Monday through Friday, 8:00 AM to 4:30 PM

The Circuit Clerk's office is located on the third floor of the Warren County Courthouse. The court hears probate matters as part of its civil division.

Parking and Access

Free parking is available around the public square where the courthouse is located, as well as on adjacent side streets.

Filing Process

Step 1: Determine If Probate Is Necessary

Before filing, assess whether formal probate is required:

  • Small Estate Affidavit: If the personal estate is valued at $150,000 or less (excluding vehicles) and does not include real estate, you may be able to use a Small Estate Affidavit to transfer assets without court supervision.
  • Joint Tenancy/Survivorship: Assets held in joint tenancy with rights of survivorship pass directly to the surviving owner.
  • Trust administration: Assets held in a living trust generally do not require probate.

Step 2: File the Petition

If formal probate is needed, file a Petition for Probate with the Circuit Court of the Ninth Judicial Circuit, Warren County. Include:

  • Petition for Probate of Will and for Letters Testamentary (or Administration)
  • Original will and codicils (if any)
  • Certified death certificate
  • Filing fee (approximately $306.00)
  • Affidavit of Heirship

All civil cases, including probate, must be filed electronically via eFileIL unless an exemption applies.

Step 3: Provide Notice

After filing, you must:

  • Mail notice of the hearing to all heirs, beneficiaries, and interested parties at least 30 days before the hearing (or as required by statute).
  • Publish notice in a newspaper of general circulation in Warren County (such as The Review Atlas) once a week for three successive weeks.

Step 4: Attend the Hearing

The court will schedule a hearing on the petition, typically 2 to 4 weeks after filing. At the hearing, the judge reviews the petition and, if approved, issues Letters Testamentary or Letters of Administration.

Step 5: Administer the Estate

After receiving Letters, the personal representative must:

  • Publish notice to creditors (claims must be filed within 6 months from the first publication date)
  • Inventory and appraise all estate assets within 60 days
  • Pay valid creditor claims
  • File federal and state tax returns as needed
  • Distribute assets to beneficiaries
  • File a final accounting and petition for discharge

Local Requirements

Warren County-Specific Procedures

  • E-filing: All civil cases, including probate, must be filed electronically via eFileIL unless an exemption applies.
  • Local Rules: The Ninth Judicial Circuit has specific local rules governing probate practice; consult Part 10 of the local rules.
  • Appearance: Self-represented litigants must file an Appearance form with their initial filing.
  • Publication: Notice must be published in a newspaper of general circulation in Warren County for three successive weeks.

Check with the Circuit Clerk for any specific judge's standing orders regarding probate administration.

Timeline & Fees

Filing Fees (Warren County)

  • Probate Opening: approximately $306.00
  • Claims Notice Publication: approximately $150-$250
  • Certified copies of Letters: approximately $2.00-$4.00 per certified copy
  • Publication costs: approximately $150-$250 depending on the newspaper
  • Sheriff Service: ~$50 per person

Illinois does not have a statutory percentage fee schedule; fees must be reasonable based on services rendered.

Payment Methods

The court accepts cash, certified checks, money orders, and major credit cards (service fees apply). Credit card payments typically incur a convenience fee.

Estimated Timelines

  • Simple estates (no disputes, limited assets): 9-12 months
  • Average estates: 12-18 months
  • Complex or contested estates: 18 months to 2+ years

The mandatory 6-month creditor claim period sets the minimum duration.

Local Resources

Warren County Court Resources

  • Illinois State Bar Association: (800) 252-8908 — Attorney Referral Service
  • Prairie State Legal Services: (309) 343-4022 — Legal Aid
  • Illinois Lawyer Finder: isba.org

Publication

  • The Review Atlas: (309) 734-3176 — General Circulation
  • Macomb McDonough County Voice: (309) 833-2114 — Regional

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County Forms

Small Estate Affidavit

Affidavit for estates <$150k without real estate.

Frequently Asked Questions

Where do I file for probate in Warren County?
File at the Warren County Courthouse, Circuit Clerk's Office, 100 W. Broadway, Monmouth, IL 61462. E-filing is mandatory for most filers.
How much does probate cost in Warren County?
Initial filing fees are approximately $306. Publication costs range from $150-$250.
Can I avoid probate in Warren County with a small estate?
Yes, if the estate is valued at $150,000 or less (excluding vehicles) and contains no real estate, you may use a Small Estate Affidavit.
How long does probate take in Warren County?
Simple estates typically take 9-12 months due to the 6-month creditor claim period. Complex estates can take 18 months or longer.
Do I need an attorney for probate in Warren County?
Illinois does not strictly require an attorney for all probate matters, but corporate representatives (like banks) must have one. Due to the complexity of the process, hiring an attorney is highly recommended.

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Informational guidance only — not legal advice

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Probate laws and local court rules in Warren County, Illinois may change without notice. Consult a qualified attorney for advice specific to your situation. SwiftProbate is not a law firm and does not provide legal representation.