The City of Diamond Bar takes pride in keeping its facilities and neighborhoods in excellent condition. Occasionally, however, graffiti and/or vandalism occur. If you witness someone in the act of vandalism and/or graffiti, please do not approach them yourself. Report the incident to the Los Angeles County Sheriff's Department by calling 909-595-2264.
24-Hour Graffiti Hotline
Report graffiti by calling (800) 794-7384 any time, any day. Be prepared to provide the representative with an accurate address or location description .