Marengo, IL Public Records
Marengo is an incorporated city in McHenry County, Illinois, with an estimated population of 7,699 (U.S. Census Bureau, July 2024 estimate) and 8.9 square miles of land. That is up about 133 residents since the 2020 Census base.
🏢 Marengo City Hall
Marengo's own city government keeps its local records: council or board meeting minutes, local ordinances and resolutions, local permits and licenses, and its own budget and contracts. Requests for those records go to the city clerk under the Illinois Freedom of Information Act. Birth and death certificates, marriage records, deeds and court files are generally kept by county and state offices rather than by the city; see the offices below.
📇 Marengo Contact on File
| Government | City Of Marengo |
| Contact listed | Asst. Treasurer |
| Mailing address | 132 E Prairie St, Marengo, IL 60152 |
| Phone | Not stated |
| Official website | www.cityofmarengo.com |
| Source | U.S. Census Bureau, 2022 Census of Governments: Government Units listing ↗ |
This is the mailing address the government reported to the U.S. Census Bureau; it may be a post office box or the office of an elected official rather than a public counter, and the source does not list a phone number. The website was reported by the government and was answering when we last checked. Call or check the official website before you visit.
↑ Back to record types🏛️ County Courthouse & Records Office for Marengo
Marengo is in McHenry County. In Illinois, deeds, mortgages and other land records are recorded by the county Recorder (in some counties, the County Clerk). Divorce cases in Illinois are heard by the Circuit Court in each county. Wills and estates in Illinois are handled by the Circuit Court in each county.
📍 McHenry County at a Glance
| County | McHenry County |
| County population (2024 est.) | 315,959 Source: www2.census.gov ↗ |
⚖️ McHenry County Circuit Clerk
| Address | 2200 North Seminary Avenue, Room 352, Woodstock, Illinois 60098-2837 |
| Directions | Get directions ↗ |
| Phone | (815) 334-4310 |
| Hours | Not stated |
| Records available | Circuit court case records (civil, criminal, traffic, family, probate, small claims) |
| Official website | Not stated |
| Sources | illinoiscourts.gov/…/circuit-court-clerks ↗ |
| Last verified | October 16, 2026 |
See the full McHenry County records page →
↑ Back to record types📋 Where to Get Records for Marengo
Where to get the most-requested public records for people and property in Marengo, IL:
📋 Marengo Records Guide
| Birth & death certificates | Illinois Department of Public Health – Vital RecordsIn Illinois, certified birth and death certificates can also be ordered from the County Clerk. |
| Deeds & property records | In Illinois, deeds, mortgages and other land records are recorded by the county Recorder (in some counties, the County Clerk). |
| Court cases & divorce | McHenry County courthouse. Divorce cases in Illinois are heard by the Circuit Court in each county. |
| Wills & estates | Wills and estates in Illinois are handled by the Circuit Court in each county. |
| State court system | Illinois Courts |
| Sex offender registry | Illinois Sex Offender Registry (Illinois State Police) |