Search For Your Ancestors in Historical Documents




McHenry County, Illinois
Genealogy, History & Facts

McHenry County, Illinois Facts

McHenry County

When was McHenry County, IL Created?
McHenry County was established on January 16, 1836 from Cook County and unorganized land. This county was named for Major William McHenry (c. 1771-1835), officer in during several campaigns against Native Americans and member of the Illinois legislature .

What is the County Seat of McHenry County, IL?
The County Seat is located in Woodstock was named Named Centreville until 1844 (prior county seats was McHenry from 1837–1843) also, the county government website is .

What counties are adjacent to McHenry County, IL?
Bordering Counties are  Walworth County, WI, Kenosha County, WI, Lake County, Cook County, Kane County, DeKalb County, Boone County

What cities and towns are in McHenry County, IL?
Cities and towns located in the County include  Crystal Lake, Algonquin, Lake in the Hills, McHenry, Cary, Woodstock, Huntley, Fox Lake, Island Lake, Harvard, Marengo, Johnsburg, Spring Grove, Lakemoor, Fox River Grove, Barrington Hills, Wonder Lake, Lakewood, Oakwood Hills, Richmond, Prairie Grove, Hebron, Bull Valley, McCullom Lake, Port Barrington, Holiday Hills, Union, Trout Valley, Ringwood, Greenwood.

What Townships are in McHenry County, IL?
Townships located in the County include Hebron, Hartland, Grafton, Greenwood, Algonquin, Alden, Chemung, Burton, Coral, Dorr, Dunham, Nunda, McHenry, Marengo, Seneca, Richmond, Riley.

McHenry County, IL Vital Records

Where can find McHenry County Birth, marriage, Divorce and Death Records?
McHenry County vital records can be found at the Illinois Department of Public Health has copies of birth, marriage, divorce and death records. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Illinois for current fees and application process.

You can search online for McHenry County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Illinois Birth CertificateMarriage CertificateDivorce CertificateDeath Certificate Applications to mail.

McHenry County, IL Census Records

What McHenry County, IL census records are available?
There are many types of census records for McHenry County guide you in researching your family tree. Federal Population Schedules are available for 1840, 1850, 1860, 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

McHenry Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. McHenry Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. McHenry Co. Union Veterans Schedules is available for 1890. One can find free online and printable census forms to help you with your research. See Also Illinois Census Records Research Guide

McHenry County, IL Courthouse and Government Records

McHenry County Courthouse

What genealogical records can I find in the McHenry County Courthouse?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in McHenry County. The years listed below are the first noted records with this county. See Also Illinois Corthouse Records Research Guide.

  • McHenry County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 2200 N. Seminary Ave., Woodstock, IL 60098
  • McHenry County Clerk maintains records and issues certificates of vital statistics (birth certificates, death certificates, and marriage certificates) for the entire County.
    • Phone: 815-334-4242
    • Marriage Records: 1837
    • Birth & Death Records: 1877
  • McHenry County Recorder of Deeds serves the people of County by receiving, filing and maintaining all records related to real property in our county. These documents range from all types of conveyance deeds, mortgages, releases and assignments, property liens, as well as, assorted federal, state and local liens. The Recorder’s office is responsible for the recordation and storage of plats of subdivision, land surveys and monument records. Many other types of miscellaneous documents are recorded, such as; foreign birth certificates, foreign marriage licenses, and military discharge paperwork to name a few.
    • Phone: 815-334-4110
    • Land Records:1839
  • McHenry County Clerk of the Circuit Court, commonly known as the Circuit Clerk, is the keeper of the files and records of the Circuit Court. The Circuit Clerk's Office retains documents some of which include criminal law, chancery, support, probate, adoption, ect....
    • Phone: 815-334-4310
    • Probate Records: 1840
    • Court Records: 1838
  • McHenry County Treasurer's Office is responsible for the statutory duties required as County Treasurer and as Ex-Officio County Collector of Real Estate Property Taxes and Drainage District Taxes for the entire county.
  • The county archives of the state of Illinois
  • Local Government Records Database - provides a listing of the local governmental records held by the Illinois Regional Archives Depository (IRAD) system
  • BLM Land Records

McHenry County, IL Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for McHenry County, IL?
A list of McHenry County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Illinois Archives, Historical & Genealogical Societies.

Where can I connect with other McHenry County, IL Researchers through message boards and forums?

What other genealogical resources are available in McHenry County, IL?
The following are web links to Genealogy, Records and Resources pertaining to McHenry County. These genealogy links fall into 3 categories: Commercial Sites, Private Sites or Organization Sites. Some have free access some require a cost. This is simply a collection that has been gathered or submitted. I do not recommend or promote one genealogy site over another.

McHenry Co. IL Maps, Atlases & Gazetteers

McHenry Co. IL Books, Newspapers & Publications

McHenry Co. IL Cemeteries & Church Records

McHenry Co. IL Family Websites, Pictures & Histories

McHenry Co. IL General and History Websites

McHenry Co. IL Military Records

Copyright © 2014,