Cincinnati, Ohio

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Cincinnati, Ohio, United States
latitude: 39.1, longitude: -84.516667
Browse map of Cincinnati 39°06′00.00″ N, 84°31′00.00″ W
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Cincinnati is a city in Ohio, United States at latitude 39°06′00.00″ North, longitude 84°31′00.00″ West.

OpenStreetMap images (and underlying map data) are freely available under OpenStreetMap License.

Getting started

The Tri-State area has pretty good OSM coverage for an American metropolitan area, with extensive building footprints, transit routes, named landuse areas, footpaths and staircases, cul-de-sacs, and the beginnings of 3D building support (example). Virtually all roads imported from TIGER have been redrawn.

That said, there are infinite opportunities for improvement! Greater Cincinnati has seen a lot of activity over the past few years, but Northern Kentucky is quickly improving and we're starting to pay some attention to Southeast Indiana too. We may have a lot of buildings mapped, but hardly any have addresses on them. A great way to start is to zoom all the way into your neighborhood and add as much detail as you can. Even toolsheds are fair game.

See Ohio (and to a lesser extent Kentucky and Indiana) for relevant information on contributing to OpenStreetMap's coverage of Cincinnati.


The default aerial imagery layers in iD and Potlatch are of high resolution but may be up to six years old, so check the vintage of an OSM feature before remapping it based on aerial imagery.

As of 2018, Mapbox imagery is the most up-to-date and highest-resolution imagery available in urban and suburban parts of the Tri-State, while Bing and DigitalGlobe layers are generally more up-to-date in rural areas. This table of corn mazes gives a good idea of the vintage of each aerial imagery layer by county. The Bing aerial imagery analyzer is another tool for determining Bing imagery vintage, although these days it only reports a very broad date range. The Ohio Statewide Imagery Program has published aerial imagery from early 2018 in many counties, which is newer and higher-resolution than both DigitalGlobe and Mapbox, but it isn't compatible with the online editors iD and Potlatch 2.

Mapillary covers some of the Tri-State's highways and a few streets downtown. Minh Nguyen added imagery of major streets around Loveland, Symmes Township, Miami Township, and Milford in October 2018. OpenStreetCam has more recent coverage of the Tri-State along the Interstates.

The Cincinnati Department of Public Services also publishes GPS data of their vehicles, which could be used to align aerial imagery.


There is an ongoing import of CAGIS building footprints in Hamilton County. See Ohio/Imports for potential sources of data to import.


In 2017, Miami University organized a mapping party to help the Humanitarian OSM Team map Puerto Rico following Hurricane Maria. [1][2][3][4] However, there hasn't been a meetup or mapping party focused on the Tri-State area – you're welcome to start one.

Find non-wiki-using mappers using Who's around me? Be sure to subscribe to the talk-us mailing list, where the broader U.S. mapping community discusses tagging, imports, policy, evangelization, and more. If you have any questions, you can also ask on the #ohio, #kentucky, and #indiana channels of the U.S. community's Slack workspace (invite yourself).

Please introduce your friends to OpenStreetMap! Reach out to enthusiast communities in orienteering, urban planning, and open source. Show a local trivia buff the old_name=* and name:etymology=* tags; show a road fan the route networks page.

OSM in the wild

  • The Cincinnati Bike Map, published in September of 2014, is entirely based on OSM data. 9,000 copies of the map were printed for free local distribution. It is available online and by mail on request.
  • Go Solar Cincy, a project of OKI, uses building footprint data from OSM to supplement those from institutional data sources in their web map.
  • Every news media outlet in Cincinnati plots its online Doppler radar against an OSM-based basemap by Mapbox:
  • Bus Detective, a local real-time transit app, locates stops on the Humanitarian OSM Team (HOT) basemap.
  • Cincy 311 plots 311 calls against the HOT basemap.
  • Cincinnati St. Vincent de Paul plots its locations against the standard OSM basemap.
  • The Butler County RTA plots bus routes against the standard OSM basemap (example).
  • The University of Cincinnati shuttle service operates an online route map atop an OSM-based basemap powered by Mapbox.
  • Red Bike's Android and iOS applications plot station locations against an OSM-based basemap and display OSM-based routes to stations, powered by Mapbox.
  • Clermont County Online Mapping, Clermont County's GIS portal, displays the openstreetmap-carto renderer as a basemap by default.


Main article: Cincinnati, Ohio/Statistics

Nearly complete

Acknowledging that everything can always be better, this is a list of things which are, for now, really quite accurate and thoroughly identified. Please add more things to this list if you've made a point of seeing that some particular thing in Greater Cincinnati has been mapped to the fullest; it's good to know what our strengths are!

  • Building footprints in urban areas
  • Major building footprints in suburban and rural areas
  • Cul-de-sacs (aka turning circles)
  • Marked pedestrian crossings
  • Coffee shops and bike shops for now, though such places are always changing
  • Schools and universities [5]
  • Street geometry and names have generally been vetted pretty thoroughly
  • Cincinnati neighborhood retail areas
  • Park boundaries and sports pitches in Cincinnati proper
  • High-voltage power lines and towers
  • Alleys are increasingly well-tagged. Almost all alleys are identified (service=alley), though many can still use names and other information.
  • Cycleways (bike paths, bike lanes and trails)
  • lanes=* on primary, secondary and tertiary streets
  • Golf courses (although details like golf cart paths, holes, and fairways are missing on many golf courses)
  • The Cincinnati Southern Railway (owned by the City of Cincinnati) is completely mapped to Chattanooga, although sidings, spurs, and level crossings are lacking in many places.
  • Turn lanes in eastern Hamilton County, southern Butler County, Clermont County, and Warren County, amounting to 2.2% of turn lane miles in the U.S. as of January 2019

Plenty of room for improvement

Things to keep tabs on