CML homeNIS homeparcelBaseneighborhoodBasemuralBasecrimeBasePhillySiteFinder

Data Views
Summary Stats
Scatter Charts
Trend Charts
User-defined Neighborhoods
Neighborhood Reports
Data Matrix

User Assistance
Data Dictionary
GIS Data
About CrimeBase

Version 2005.12
Philadelphia crimeBase banner

Welcome to crimeBase
New Users:

  If you are new to the CrimeBase, please take a look at the instructions.


  • The data for this application were made available by the Philadelphia Police Department. The data originates from the Police Department's Incident Transmittal System (INCT). This database represents a record of incidents to which the Police Department has responded and categorized at the time of response. It usually includes any updates that occured within 5 days after the incident. However, if the investigation results in a re-categorization of the incident after this 5 day window, it will not be reflected in this database. As a result, the numbers represented here are, at best, a snapshot of crime in Philadelphia. However, it is the most comprehensive and broad snapshot that we have available. Several categories of crime included in crimeBase change significantly over time due to this difference in reporting. The crimes most affected are homicide, rape, and some sexual assaults. For example, in crimeBase many homicides will be depicted as aggravated assaults because the complainant has been shot but may die at a later date. The same counting problem is true for the other categories. Anyone using the crimeBase information should realize that these issues are present and should be taken into account when interpreting the data.
  • Location coordinates used to aggegrate the data are based on the Streets Department's Street Centerline file. The process of automated address location results in a 1-3% error rate, usually from poorly formatted addresses.


   Summary Statistics
   User-defined Neighborhood
   Neighborhood Reports


  Neighborhood Information System Home
  Cartographic Modeling Lab
  Phila. Police Department's PPDOnline
  City of Philadelphia

CML Copyright Notice: ©2001-2014 Cartographic Modeling Laboratory. All rights reserved.