Reports & Documents

Online Documents

We are constantly adding more documents for viewing online, including tax map updates, surveys and more.  We welcome user input as to how we can make it easier or more convenient for you to use this page, or if you find any documents that are listed incorrectly. Please call (513)946-4259 if you have any questions or concerns. 

2020 Annual Report - Available Here

Engineer's Office Manuals

Benchmarks and Section Corners

Scanned Documents of the Engineer’s Office

These include: Tax Maps, Surveys, Road Improvement Plans, Aerial Photos, Topography Maps, etc.  For tax maps you will need to know the book and page number of the parcel you wish to search.

Scanned Documents - Go to the main search page (if page does not load property, hit refresh - F5).

Real Estate Search - Find the book and page number of the property you wish to view.  You will be directed to the Hamilton County Auditor’s website. 


Benchmarks and Section Corners

      To locate a benchmark or section corner:

1.      Select the map in the left column and locate the ID of interest. 

2.      Use the corresponding link in the second column to view the information for the ID of interest.  


View maps on CAGIS Online

To view section corners and benchmarks, first click on the CAGIS link above. On the CAGIS map click on the "Property" icon near the top left side. Then click on the "Map Layers" icon in the row of icons (it looks like a folder). On the map layers window that opens up, double-click on "Survey Monuments", then click the check-boxes on the items you wish to display.

Road Records

Available Public Records on File:
Hamilton County Highway Map - Free Distribution
Hamilton County Survey Record Books - From the mid 1800s to present
Hamilton County Road Record Books - From 1793 to present
Atlas of Hamilton County - 1869 and 1884
Topography Maps with Property Overlays
Aerial Photographs
Historical Hamilton County Maps - 1847 and 1848 (Reproducible)


The Engineer's Traffic Department is responsible for performing traffic studies which establish  No Parking Zones, Signalizing Intersections and Stop Sign locations.  These studies are then brought before the Board of County Commissioners who are the sole authority to apply traffic laws (except Speed Limits) in unincorporated areas of Hamilton County .

A study to establish a Speed Limit on a road in an unincorporated area of Hamilton County is submitted to the Director of the Ohio Department of Transportation.   ODOT has sole authority to set speed limits on county roads.

In the process of performing these studies, we gather data which is valuable to the public for other purposes.

Please call 513-946-8421 to obtain more traffic count information.

Online Documents


The Surveys and Tax Maps are now available using CAGIS ONLINE


The Engineer’s Office continues to scan and put online old surveys. The current status is:

 Anderson Township- online

Columbia Township - online

Colerain Township - online

Crosby Township - online

Delhi Township - online

Harrison Township - online

Miami Township - online

Whitewater Township - online

All municipalities are Online !


All old “City of Cincinnati Micro Film surveys” are online.

All “new” Surveys since April 2006 are online.

 All Tax Maps are available online as well as a various portion of our voided Tax Maps.