Data Catalog

• County

  Crash Reporting - Drivers Data

  Montgomery County of Maryland —

  This dataset provides information on motor vehicle operators (drivers) involved in traffic collisions occurring on county and local roadways. The dataset reports...

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• County

  Pittsburgh American Community Survey 2015 - Miscellaneous Data

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Miscellaneous Reports from the 2015 American Community Survey Report

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  • 14 more in dataset
• County

  Crime

  Montgomery County of Maryland —

  Updated daily postings on Montgomery County’s open data website, dataMontgomery, provide the public with direct access to crime statistic databases - including raw...

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• County

  Allegheny County Tax Liens (Filings, Satisfactions, and Current Status)

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Tax liens are a method the government uses to secure an interest in unpaid tax debt. This dataset represents information about county, municipal, school district,...

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  • 7 more in dataset
• County

  Employee Payroll

  Cook County of Illinois —

  Employee payroll data for all Cook County employees excluding Forest Preserves, indicating amount of base salary paid to an employee during the County fiscal quarter....

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• County

  Pittsburgh American Community Survey 2014 - Miscellaneous Data

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Miscellaneous Reports from the 2014 American Community Survey Report

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  • 14 more in dataset
• County

  Allegheny County 911 Dispatches - EMS and Fire

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  The Allegheny County 911 center answers and dispatches 911 calls for 111 out of 130 municipalities in Allegheny County. Agencies are dispatched via a computer aided...

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• County

  Voter Registration by Census Tract

  King County, Washington —

  This web map displays data from the voter registration database as the percent of registered voters by census tract in King County, Washington. The data for this web...

  • HTML
• County

  Crash Reporting - Incidents Data

  Montgomery County of Maryland —

  This dataset provides general information about each collision and details of all traffic collisions occurring on county and local roadways within Montgomery County,...

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• County

  Medical Examiner - Unidentified Persons

  Cook County of Illinois —

  This dataset contains descriptions of unidentified remains whose cases have been processed by the Medical Examiner’s Office. Call 312-666-0500 to speak to Deputy...

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• County

  Allegheny County Property Assessments

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Real Property parcel characteristics for Allegheny County, PA. Includes information pertaining to land, values, sales, abatements, and building characteristics (if...

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  • 6 more in dataset
• County

  Pavement Condition Index

  Montgomery County of Maryland —

  Pavement Condition Index is provided by the Department of Transportation for analyzing the conditions of the pavement for all 5,200 lane miles of roadways within the...

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• County

  Fire Protection District and Municipal Fire Departments

  Lake County, Illinois —

  Download In State Plane Projection Here. These boundaries represent either a Fire Protection Taxing District or a municipal fire department and are based on legal...

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  • ArcGIS GeoServices REST API
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  • 5 more in dataset
• County

  Assessor - Parcel Universe (Current Year Only)

  Cook County of Illinois —

  A current-year-only universe of Cook County parcels with attached geographic, governmental, and spatial data. When working with Parcel Index Numbers (PINs) make sure...

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• County

  Lead Content of Consumer Products tested in King County, Washington

  King County, Washington —

  Public Health – Seattle & King County and the Hazardous Waste Management Program are providing data describing the lead content of consumer products. This data is...

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• County

  Crash Reporting - Non-Motorists Data

  Montgomery County of Maryland —

  This dataset provides information on non-motorists (pedestrians and cyclists) involved in traffic collisions occurring on county and local roadways.The reports...

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• County

  Housing Code Violations

  Montgomery County of Maryland —

  Housing Code Enforcement data from 2013 to the present , including violations identified. Update Frequency: Weekly

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• County

  November 2025 General Election - Final Precinct Results

  King County, Washington —

  Final precinct level results for the November 2025 general election.

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• County

  Assessor - Parcel Sales

  Cook County of Illinois —

  Update 10/31/2023: Sales are no longer filtered out of this data set based on deed type, sale price, or recency of sale for a given PIN with the same price. If users...

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• County

  Allegheny County Restaurant/Food Facility Inspections and Locations

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Facilities located within Allegheny County that produce, distribute and sell food products are subject to mandatory, routine inspection by one of the health...

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You can also access this registry using the API (see API Docs).

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