A federal judge sentenced Sally Claassen to two years in federal prison and one year of supervised release.
She must also pay more than $445,000 in restitution and fines.
Claassen allegedly siphoned nearly a half million dollars from Winnebago County between 2014 and 2015.
County administrators have said she used her county-issued credit card to buy personal items, including resort vacations and kitchen renovations.
Claassen ran the county's Purchasing department for a little more than 18 years.
