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 the property boundaries owned by 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.This layer doesn't display when zoomed out beyond 1:18,000.

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.

There are 22 public school districts in Hamilton County. Districts in this dataset:Cincinnati Public School DistrictDeer Park Community City School DistrictFinneytown Local School DistrictForest Hills Local School DistrictIndian Hill Exempted Village School DistrictLockland City School DistrictLoveland City School DistrictMadeira City School DistrictMariemont City School DistrictMount Healthy City School DistrictNorth College Hill City School DistrictNorthwest Local School DistrictNorwood City School DistrictOak Hills Local School DistrictPrinceton City School DistrictReading City School DistrictSouthwest Local School DistrictSt. Bernard - Elmwood Place City School DistrictSycamore Community City School District - Sycamore High School Three Rivers Local School DistrictWinton Woods City School District - Winton Woods High SchoolWyoming City School DistrictThis layer isn't displayed when zoomed out beyond 1:94,590.

This layer represents the boundaries of the 2020 Census Tracts in Hamilton County.

Census tracts are: Small, relatively permanent statistical subdivisions of a county. Uniquely numbered in each county with a numeric code. About 4,000 inhabitants – Minimum Population – 1,200 – Maximum Population – 8,000. Designed to be relatively permanent over time. Any changes are documented so data can be compared from decade to decade.

Building Footprints are polygon features representing photogrammetrically captured building outlines. The building footprints are rough approximations of buildings. They they do not show the exact footprint. The current version of building footprints are based on aerial photography taken in Spring of 2017. Updates are made for significant structures as needed from digitized development plan approvals and notifications of demolitions until the next aerial flyover (2023). The Building Footprints layer contains building structures including mobile homes, garages, water storage tanks and known underground building features.

Geospatial data about Cincinnati Police Districts. Export to CAD, GIS, PDF, CSV and access via API.

Countywide rights of way and easements layer displays rights of ways and easments in incorporated and unincorporated territories within Hamilton County and is maintained by Hamilton County Engineers.

Tax districts layer display tax districts in Hamilton County. There are 119 tax districts countywide.

U.S. Census Bureau QuickFacts statistics for Cincinnati city, Ohio. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Cincinnati Police Department Locations

Data Description: Fire Incident data includes all fire incident responses. This includes emergency medical services (EMS) calls, fires, rescue incidents, and all other services handled by the Fire Department. All runs are coded according to classification: for EMS, this includes ALS (advanced life support); BLS (basic life support); etc.

Data Creation: This data is created when a run is entered into the City of Cincinnati’s computer-aided dispatch (CAD) database.

Data Created By: The source of this data is the City of Cincinnati's computer aided dispatch (CAD) database.

Refresh Frequency: This data is updated daily.

CincyInsights: The City of Cincinnati maintains an interactive dashboard portal, CincyInsights in addition to our Open Data in an effort to increase access and usage of city data. This data set has an associated dashboard available here: https://insights.cincinnati-oh.gov/stories/s/6jrc-cmn5

Data Dictionary: A data dictionary providing definitions of columns and attributes is available as an attachment to this dataset.

Processing: The City of Cincinnati is committed to providing the most granular and accurate data possible. In that pursuit the Office of Performance and Data Analytics facilitates standard processing to most raw data prior to publication. Processing includes but is not limited: address verification, geocoding, decoding attributes, and addition of administrative areas (i.e. Census, neighborhoods, police districts, etc.).

Data Usage: For directions on downloading and using open data please visit our How-to Guide: https://data.cincinnati-oh.gov/dataset/Open-Data-How-To-Guide/gdr9-g3ad

Disclaimer: In compliance with privacy laws, all Public Safety datasets are anonymized and appropriately redacted prior to publication on the City of Cincinnati’s Open Data Portal. This means that for all public safety datasets: (1) the last two digits of all addresses have been replaced with “XX,” and in cases where there is a single digit street address, the entire address number is replaced with "X"; and (2) Latitude and Longitude have been randomly skewed to represent values within the same block area (but not the exact location) of the incident.