County and municipal agencies in Winnebago County, Illinois sell surplus through online auction sites like GovDeals and Public Surplus. BidProwl tracks all of them in one place: 169 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.
177 live auctions across Winnebago County right now.

Rockton, IL · Hubzu
Listed until sold · 32 bids
$26,080
Rockford, IL · PublicSurplus
12d 3h left · 3 bids
$255

Roscoe, IL · GovDeals
4d 4h left · 1 bid
$6,400