- Warren County, Illinois Home Page
County Inforeport
General information about Warren County
Population: 17,796
Area: 543 sq. miles
County Seat: Monmouth
Area Code(s): 309
Time Zone: Central
- Illinois Court Records and other Resources
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Links to state and local court records, general Illinois court information, directory of courts, and online resources for courts in Illinois.
- Court Directory and Court Records Info
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Directory of court locations in Warren County, Illinois. Includes local links to searching court records, dockets, legal research, self help, and more.
- Assessor
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Warren County Assessment Office
100 West Broadway St., 2nd Floor, Monmouth, IL 61462
Phone (309) 734-8561
- Warren County census information summary
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Warren County statistics for population, ethnicity, housing, geography and businesses. From the U.S. Census Bureau.
- Employee Directory
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View Warren County employee directory by department.
- Department Directory
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View Warren County department directory including email links.
- Delinquent Taxes and Tax Sales
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Warren County Treasurer
100 West Broadway, Monmouth, IL 61462
Phone (309)734-8536 Fax (309)734-0313
- Tax Deed Auctions
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View Warren County tax deed auctions, including results of prior sales.
- Warren County Public Library Genealogy Records
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View Warren County Public Library information about available genealory records.
- Genealogy Records
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Search Warren County genealogy records such as cemeteries, census records, obituaries, and more.
- Maps
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View Warren County maps.
Sheriff and Jail
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Warren County Sheriff
121 North A St., Monmouth, IL 61462
Phone (309)734-8506 Fax (309)734-4946
Jail Phone (309)734-8505
- Inmate Records
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Search Illinois Department of Corrections inmate records.
- Government Jobs
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View Warren County government job openings.
- Government Jobs
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Search Illinois state government jobs by category, agency or keyword.
- Sex Offender Records
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Search Warren County sex offender records.
- Meeting Minutes
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View Warren County Board meeting minutes by date including current and prior years.
- Meeting Agendas
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View Warren County Board meeting agendas by date including current and prior years.
