Dayton Neighborhood Population (2020 and 2010 Census)
Total population of each of Dayton's 65 neighborhoods from the 2020 and 2010 Censuses, apportioned from census blocks to the neighborhood boundaries.
OpenDayton · a Code for Dayton project
Ask questions about Dayton,
Ask questions about Dayton,
answered from public data.
OpenDayton connects AI assistants like Claude to curated open data from the City of Dayton and Montgomery County: crime and 911 calls, housing conditions, lead water lines, trash pickup, capital projects, property records, and more. Answers cite the agency that published the data.
17City & regional datasets
9County property record tables
FreeNo account or API key
Connect in a minute
OpenDayton is an MCP server. Add this address to your AI assistant:
https://opendayton.org/mcpClaude.ai & Claude Desktop
Settings → Connectors → Add custom connector, name it OpenDayton, and paste the address above.
Claude Code
Run this in your terminal:
claude mcp add --transport http opendayton https://opendayton.org/mcpOther MCP clients
Anything that speaks MCP over Streamable HTTP can point at the address. No API key needed.
Things to ask
Once connected, ask in plain English. Click a question to copy it.
About an address
Neighborhoods & public safety
Housing & property
City spending & services
Tip: for address questions, include a street address in Dayton. The assistant looks up the parcel and checks what's nearby.
What's inside
Every dataset is one its publisher already shares with the public. OpenDayton only reads what's listed here.
Neighborhoods & reference
Dayton Neighborhoods
Boundaries of Dayton's 65 official neighborhoods and the Priority Board (planning district) each belongs to.
Public Facilities
Schools, colleges, libraries, recreation centers, fire stations, and other public facilities in Dayton, with type and address.
Public safety
Police Arrests
Arrests by Dayton Police with charge, charge level, neighborhood, and arrestee demographics as categories.
Police Calls for Service
911 and officer-initiated calls for police service: dispatch type, priority, response time, day/hour, district, and neighborhood.
Police Crime Incidents (NIBRS)
Reported crime incidents in Dayton coded to the FBI NIBRS standard, with offense category, Ohio Revised Code section, neighborhood, police district, weapon, and victim characteristics (as age bands).
Police Use of Force Incidents
Internal-affairs records of police use-of-force incidents: type of force, reason, injuries, investigation status and disposition, and citizen demographics as categories.
Housing
City of Dayton Owned Parcels
Parcels owned by the City of Dayton with the responsible department, intended use, whether there is a structure, and whether it is for sale or in the vacant lot program.
City-Supported Housing Projects
Housing projects the City funded or supported: program, funding source, affordability level, tenure, project type, number of units, and location.
Housing Condition Survey 2025 (with 2023 grades)
Every parcel in Dayton with the exterior condition grade from the City's 2025 windshield survey, the 2023 grade in the same row, occupancy status, and per-defect flags (roof, siding, porch, …).
Infrastructure & services
City Service Requests (Dayton Delivers)
Every service request residents filed through Dayton Delivers in the last 90 days: what was reported, which department owns it, the neighborhood, when it was opened and closed, and how it was resolved.
Lead Service Line Inventory
The water service line at each address: material on the utility side and the customer side, whether it is or was ever lead, verification status, replacement status and priority tier, building type, and whether the address is a sensitive population (school, day care) or in a disadvantaged area.
Storm Drains (Adopt-A-Drain)
City storm drain inlets with their address, lifecycle status, and Adopt-A-Drain adoption status.
Trash Pickup Days
Trash collection route areas with the pickup day.
Capital projects & spending
ARPA Community Project Applications
Community project applications to the City's American Rescue Plan Act (Dayton Recovery Plan) funding, with applicant organization, location, total project cost, and funding requested.
Active Capital Improvement Projects
City capital projects currently in design or construction: name, description, type (Water, Sewer, Street, Facility, …), fiscal year, funding source, planned dates, phase, and construction cost.
Completed Capital Improvement Projects
Completed City capital projects with type, fiscal year, funding, and cost.
County property records SQL database
Montgomery County property records
Countywide parcel-level records from the Montgomery County Auditor and Treasurer: the current tax roll (one row per parcel with values, tenure flags, delinquency, foreclosure, and census tract), the delinquent list, every recorded property transfer since 2001 (2003-2010 not published), and the Auditor's CAMA assessment extract (dwelling characteristics, building permits back to the 1990s, apartment unit counts). Queried with SQL; countywide, so answers can be filtered to the City of Dayton.
For developers
The tools the server exposes. Queries are validated against each dataset's field allowlist and are row-capped. Also: /datasets.json · /health
list_datasets— What exists, by themedescribe_dataset— Fields, coded values, caveats, live record countarcgis_query— Rows from a City datasetarcgis_stats— Server-side counts, sums, and averagescounty_schema— Tables and columns of the County databasecounty_sql— One read-only SELECT against County recordsgeocode— Address or parcel ID → parcel and coordinates