County and municipal agencies in Grundy County, Illinois sell surplus through online auction sites like GovDeals and Public Surplus. BidProwl tracks all of them in one place: 112 live lots right now. Register on the platform hosting the lot you want; most items are local pickup only.
The usual mix is retired fleet vehicles and police cruisers, public works equipment, school district electronics and furniture, and unclaimed or seized property. Inventory refreshes daily as agencies list new surplus.
112 live auctions across Grundy County right now.

Gardner, IL · Hubzu
Listed until sold · 1 bid
$197,000

Morris, IL · RitchieBros
20d 7h left
Start$600

Morris, IL · RitchieBros
20d 7h left
Start$100