County and municipal agencies in Penobscot County, Maine sell surplus through online auction sites like GovDeals and Public Surplus. BidProwl tracks all of them in one place: 3 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.
2 live auctions across Penobscot County right now.

Single Family Home at 77 Stillwater Ave, Bangor, ME 04401. 3 bed | 1.1 bath | 1,810 sq ft | built 1911. FHA financing: IE (Insured Escrow). Eligible b...

880 SPRINGBRIDGE ROAD, Greenbush, ME 04418. 2 bed | 1 bath | 1,350 sq ft. Type: bank-owned. List price: $65,000