Contesting Property Tax?

[David Hodge]

I purchased a property in Birmingham, AL (Jefferson county) for $65K but on the county's tax assessor website, the property tax is being calculated as if the property is worth $84K.  It looks like that was the assessment in 2007 before the crash and it has remained the same ever since.  Can I contest this??  How do I go about doing this?  I'm assuming I should contest it now rather than later?  I appreciate all the advice I can get!