The City of Arnold is pleased to be part of the Jefferson County, Missouri, CodeRed 9-1-1 Emergency Warning system.
As a City of Arnold resident, you can add yourself now to the Jefferson County CodeRed 9-1-1 Emergency Communication Network.
In the event an emergency occurs in your geographical area, the Jefferson County CodeRed 9-1-1 system will initiate a call to the telephone numbers you provide. Notification will be made for both natural and manmade disasters. If you reside or own property in Jefferson County and would like to receive CodeRed notifications, please use your physical address in Jefferson County.
Post Office Boxes or addresses outside of Jefferson County will not receive notifications.
Should you at anytime desire to be removed from the calling list, you can do so by calling Jefferson County 911 at 636-797-9797 ext 3.