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McHenry County, Illinois
Genealogy, History & Facts
County Vital Records ∣ County Census Records ∣ County Courthouse and Government Records ∣
County Societies, Family History Resources and County Genealogy Links
McHenry County, Illinois Facts
When was McHenry County, IL Created?
McHenry County was established on January 16, 1836.
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 www.co.mchenry.il.us .
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
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 Certificate, Marriage Certificate, Divorce Certificate, Death Certificate Applications to mail.
- U.S., Social Security Applications and Claims Index, 1936-2007
- Social Security Death Index
- Order Hard Copies of Vital Records
- USGenweb Archives Illinois Marriage Project
- Cook County Birth Certificates, 1878-1922
- Cook County Birth Registers, 1871-1915
- Illinois Marriage Records, 1860 – 1905
- Illinois County Marriages, 1810-1934
- Cook County, Illinois, Marriage and Death Indexes, 1833-1889
- Illinois, Cook County Marriages, 1871-1920
- Illinois Marriages, 1851-1900
- Illinois Statewide Marriage Index, 1763-1900
- Illinois Marriages, 1790-1860
- Illinois Marriages to 1850
- Cook County Deaths, 1878-1922
- Illinois Death Certificates, 1916–1950
- Illinois, Deaths and Stillbirths Index, 1916-1947
- Illinois, Deaths and Stillbirths, 1916-1947
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

What genealogical records can I find in the McHenry County Courthouse?
Researchers frequently overlook the great importance of McHenry County court, probate, and land records data as a useful resource of ancestry and genealogy information. Buried away in Illinois courthouses and archives everywhere are the ambitions and frustrations of countless Illinois residents.
The possibilities are excellent that your forefathers have left a comprehensive document of at least a number of facets of their lives in the McHenry County court records. Even if your forebears is not referred to in a Court case, contemplate all of the other procedures that could have lead to him or her to appear in court records. 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
- Phone: 815-334-4242
- Marriage Records: 1837
- Birth & Death Records: 1877
- McHenry County Recorder of Deeds
- Phone: 815-334-4110
- Land Records:1839
- McHenry County Clerk of the Circuit Court,
- Phone: 815-334-4310
- Probate Records: 1840
- Court Records: 1838
- The county archives of the state of Illinois
- 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.
- McHenry County Genealogical Society, P.O. Box 184, Crystal Lake, IL 60039-0184
- Northern Illinois University (NIU), Illinois Regional Archives Depository, c/o Regional History Center, Founders Memorial Library, Rm. 400, Northern Illinois University, DeKalb, IL 60115; 815-753-1807
- Illinois State Archives, Norton Building, Capitol Complex, Springfield, IL 62756; (217) 782-4682
- National Archives – Great Lakes Region (Chicago), 7358 South Pulaski Road, Chicago, Illinois 60629-5898; 773-948-9001
- Illinois State Historical Society 210 1/2 S. Sixth, Springfield, IL 62701-1503; Phone: (217)525-2781
- Illinois State Library, 300 South 2nd Street, Springfield, IL 62701-1796; Phone: (217) 785-5600
- Illinois State Genealogical Society, P.O. Box 10195, Springfield, IL 62791; Phone: (217) 789-1968
Where can I connect with other McHenry County, IL Researchers through message boards and forums?
- Illinois Genealogy Community (plus.google.com)
- Illinois State Genealogy Network (facebook.com)
- McHenry County, Illinois Message Boards (boards.ancestry.com) read and post messages about your ancestors in McHenry County
- McHenry County, Illinois Genealogy Forum (genforum.genealogy.com)
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
- See Also Map of Illinois Links and Information
- McHenry Co. D.O.T. Map
- Map of McHenry County and its civil and congressional townships
- McHenry Federal Township Plats of Illinois (1804-1891) (landplats.ilsos.net)
- 1892 McHenry Co., IL Railroad Map (usgwarchives.net)
- 1895 McHenry County Map (livgenmi.com)
McHenry Co. IL Books, Newspapers & Publications
- Illinois Newspapers Books & Publications Research Guide
- Illinois historical newspaper archives online (newspapers.com)
- Historical Newspapers from Illinois (1808 – 1922) (genealogybank.com) Quickly identify names and keywords and phrases in over 450 million articles, obituaries, marriage notices, birth announcements and also other items published in over 2,800 historical U.S. newspapers. Unique articles and other content added each and every month!
- McHenry County, Illinois Books (amazon.com)
- Search Illinois Obituaries (1985 to current) (genealogybank.com)
McHenry Co. IL Cemeteries & Church Records
- McHenry Co., Illinois Graves (findagrave.com)
- McHenry County Tombstone Transcription Project (usgwtombstones.org)
- McHenry Co., Illinois Cemeteries (Internment.net)
- McHenry Co., Illinois Cemetery Books (amazon.com)
- McHenry County, Illinois Church Books (amazon.com)
McHenry Co. IL Family Websites, Pictures & Histories
- Create a Free Family Tree (ancestry.com)
- Index to names in twenty-six volumes of Illinois records (search.ancestry.com)
- The Illinois Family Group Sheet Project (fgs-project.com)
McHenry Co. IL General and History Websites
- See Also State History for Illinois
- McHenry County, Illinois Wikipedia (wikipedia.org)
- McHenry County Fact Sheet (cyberdriveillinois.com)
- History of McHenry County, Illinois (search.ancestry.com)
- History of McHenry County, Illinois : together with sketches of its cities, villages and towns, educational, religious, civil, (search.ancestry.com)
- McHenry County, Illinois Wiki (familysearch.org)
- McHenry Co. IL Genealogy (kindredtrails.com)
- Family History Library (familysearch.org)
- McHenry County, Illinois (linkpendium.com)
- Cyndi’s List – United States – Illinois – Counties – McHenry (cyndislist.com)
- McHenry County Illinois (genealogytrails.com)
- McHenry Co. ILGenweb (ilgenweb.net)
- McHenry County Genealogy Queries (cousinconnect.com)
- McHenry Co. Data Collections (search.ancestry.com)
McHenry Co. IL Military Records
- Illinois Military Records Research Guide
- Illinois Military Records (fold3.com) gives easy access to military records, stories, photos, and personal documents belonging to the Illinois both males and females that served. Suitable for McHenry County genealogists, researchers, historians plus much more.