Neither Price nor Reid were present in court to hear the pronouncement, which took just seconds. However, it will be several weeks before the divorce is officially finalised.
After a short romance, the couple married in Las Vegas in 2010, weeks after Reid won Celebrity Big Brother.
Announcing their separation last January, Price said that Reid had become "more fascinated by life in the media eye", adding: "Some of his behaviour became difficult for me to understand and caused issues. I have tried to help him with these issues but they have put a considerable strain."
Reid, who is engaged to pregnant fiancé Chantelle Houghton, previously said that they were holding off planning their big day until he was divorced from Price.
Last week, Price - who divorced first husband Peter Andre in 2009 - was named 'Celebrity Mum of the Year'.
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Take a look through pictures from Katie Price and Alex's Reid short marriage below: