As the number of crimes increases within a grid, the color of the grid changes. Many factors can influence meaningful comparisons between crime grids. Other factors may also affect reported crime in some areas including organized neighborhood Block Watch Block Captain programs, targeted police enforcement, or proximity to commercial and commuter zones. Sexual Assault crimes cannot be displayed by occurrence points. For additional information about crime in your neighborhood, for more information about the block captain program, please visit Office of Neighborhood Involvement .
Every attempt is made to pinpoint the exact time date and time a crime occurred.
If the record dates and times fall within a three hour span or within the overnight category, CrimeMapper will include those crimes in the appropriate graph time block or overnight category. The overnight category includes crimes that have a record range between 6 p.m. to 8 a.m. The police database used for CrimeMapper contains twelve months of Part 1 Crimes reported to the Portland Police Bureau. Reported offenses which, upon investigation, are unfounded, false or baseless are not included. The crime database will be updated every month.