Access McDonough County Genealogy
McDonough County genealogy records are kept at the county clerk office in Macomb, a college town in western Illinois with a county population around 30,000. The clerk holds birth, death, and marriage records from the late 1800s, along with land and property files. McDonough County has a unique advantage for genealogy researchers: the IRAD depository is right in Macomb at Western Illinois University. That means the county clerk office and the IRAD archive for older records are in the same town, making it possible to visit both in a single trip. This is a real time saver compared to counties where the IRAD facility is hours away from the courthouse.
McDonough County Genealogy Quick Facts
McDonough County Clerk Vital Records
The McDonough County Clerk is at 1 Courthouse Sq, Macomb, IL 61455. Call (309) 833-2474 for hours and information. This is the main office for birth, death, and marriage records in McDonough County. Birth and death records start around 1877. Marriage records may go back to the 1830s or 1840s, depending on how well the early volumes were preserved.
Genealogy searches cost $10 per request. Give the clerk the full name, date range, and the type of record you want. The staff will search the indexes for you. In-person visits are the most productive approach because you can go through multiple record books in a single day. The Macomb courthouse is a busy county seat, but the clerk staff is used to handling genealogy inquiries.
For mail requests, send a letter with the search details, a $10 check payable to the McDonough County Clerk, and a copy of your photo ID. Macomb is a college town, so it has all the amenities you need for a multi-day research trip. The Counties Code (55 ILCS 5) designates the county clerk as the official custodian of local vital records.
| Office | McDonough County Clerk |
|---|---|
| Address | 1 Courthouse Sq Macomb, IL 61455 |
| Phone | (309) 833-2474 |
McDonough County Land and Property Records
McDonough County land records are held at the recorder office in the Macomb courthouse. Deeds, mortgages, and property transfers go back to the 1830s when this area was first settled. For farming families in western Illinois, these land files can trace property ownership across generations. A single deed can tell you when a family arrived, what parcels they owned, and who they sold to when they moved on.
Land records are public under the Freedom of Information Act (5 ILCS 140). No waiting period applies. You can access deed books from any year, including the 1830s, without the time restrictions that govern birth and death records. That makes property records a strong tool for tracing families in the years before vital record keeping began in 1877.
The VitalChek ordering page shown above provides an online option for requesting Illinois vital records. Some researchers use this service when they prefer not to mail a paper request to the state or county.
McDonough County Genealogy at IRAD
The IRAD depository for McDonough County is at Western Illinois University, right in Macomb. Call (309) 298-2716 to check hours and ask about holdings. This is a major advantage for McDonough County researchers. You can visit the county clerk at the courthouse in the morning and walk over to the IRAD facility in the afternoon. Most counties in Illinois require a separate trip to a different city for IRAD research.
IRAD stores older government records that the county has transferred from the courthouse. These can include historical vital records, court files, probate records, naturalization papers, and other county documents. Research at IRAD is free, and you can photograph documents at no charge. The IRAD holdings database on the Illinois State Archives website lists what McDonough County records are stored at WIU. Check before your visit. The Local Records Act (50 ILCS 205) created the IRAD system to protect county records from loss or damage.
Searching McDonough County Genealogy
Start at the McDonough County Clerk in Macomb for local vital records. The $10 search fee covers staff time in the indexes. Then visit IRAD at WIU for older county files. For statewide records from 1916 onward, the Illinois Department of Public Health holds birth and death files. IDPH genealogy requests go by mail and take about 12 weeks at $10 per copy.
The Illinois State Archives has free online databases that include McDonough County entries. The statewide marriage index covers 1763 to 1900. Death indexes cover the pre-1916 era and the years 1916 to 1950. Use these free tools to search from home before you make the trip. The Vital Records Act (410 ILCS 535) sets the genealogy thresholds: birth records open after 75 years, death after 20 years, marriage after 50 years.
- McDonough County Clerk: vital records from 1877, land from the 1830s
- Genealogy search fee: $10 per search
- IRAD at Western Illinois University, Macomb: same town as courthouse
- Illinois State Archives: free marriage and death indexes online
- IDPH: statewide birth and death from 1916, $10 by mail
Having the IRAD depository and the county clerk in the same city makes Macomb one of the more convenient places in Illinois for a genealogy research trip.
Nearby Counties
These counties surround McDonough County in western Illinois. If your ancestor lived near a county line, try these neighboring areas when a McDonough County search comes up empty.