What is the value of 2006 Sacajawea golden dollar?

It depends on where and how you found it, and its mint mark. 2006 Sacajawea "golden" (actually brass) dollars were minted only for collectors but some have ended up in circulation.

If you got it in change, it's only worth face value.

If you have an uncirculated P-mint coin in its original package it might retail for $2 to $12 depending on quality.

If you have an uncirculated D-mint coin the range would be $4 to $18.