The Civil and Municipal Boundaries layer displays the 52 jurisdictional boundaries of cities, villages and townships of Hamilton County. As of the 2010 census, there were 806,631 people, 346,790 households, and 212,582 families residing in the county. The population density was 2,075 people per square mile (801/km²). There were 373,393 housing units at an average density of 917 per square mile (354/km²).

This layer displays Pre-School and K-12 Hamilton County Schools. There are 22 School Districts in Hamilton County, and each school falls within one of these districts.
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This layer displays the property boundaries of Hamilton County. Information regarding each property can be found on the Hamilton Auditor's County, by entering the owner's name, the parcel ID, or the street address. The auditor's website provides regarding the tax district, the school district, the owner name and address, the land use, the appraisal information, the assessed value, and the property description, amongst other information.
In order to perform a parcel search on Hamilton's County Auditor's website, the parcel ID should be entered without the first "0", or use the Auditor Parcel ID.
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The Auditor Books and Pages layer shows the boundaries of the Hamilton County Auditor's Tax Maps Book and Page. These maps act as an index to show property (parcels) throughout Hamilton County, Ohio. The Book numbers correspond to the villages, cities, and townships in the county and are further subdivided into page numbers for each distinct map.
Up until the advent of G.I.S. technology these individual maps were maintained by the Hamilton County Engineer in large books.
Each property in Hamilton County is assigned a parcel number. The first characters of a parcel number reflect the Book and Page to which it belongs.

The Countywide Zoning Jurisdictions layer displays Municipal zoning jurisdictions, Township zoning jurisdictions, and Hamilton County Rural Zoning commission zoning jurisdictions.

The City of Cincinnati provides monthly memos on the lobbying activity conducted on behalf of the City of Cincinnati.

The Cincinnati Community Council Boundaries layer is an assemblage of maps of each distinct Cincinnati neighborhood.
Community councils are nonprofit voluntary organizations that weigh in on city matters, but exist separately from the city government and follow different rules. Each neighborhood council has defined it own border which in some cases are not in agreement with other contiguous neighborhood boundaries resulting in area of overlap in the layer. The City of Cincinnati does intervene or mediate on these boundary discrepancies.

The Cincinnati SNA (Statistical Neighborhood Approximations) Boundary layer shows Cincinnati neighborhoods modified to closely "fit" the US Census 2010 Data & 2006-2010 American Community Survey five-year estimates. These boundaries are useful in that they can be correlated to US Census population data. The boundaries are redrawn every ten years following the Census.

Note: The Cincinnati SNA Boundaries are not the same as the Cincinnati Community Council Neighborhood Boundaries.

Hamilton County Sheriff Stations layer shows 5 different locations of Sheriff Stations in the County. The office of Sheriff was the first county office established in the United States. The Sheriff is the chief law enforcement officer. The Sheriffs primary duties are to provide common pleas court services and corrections on a countywide basis, and full police protection to the unincorporated areas of the county. However, the Sheriff maintains full police jurisdiction in all municipalities, townships, and villages.
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