County and municipal agencies in Kauai County, Hawaii sell surplus through online auction sites like GovDeals and Public Surplus. BidProwl tracks all of them in one place: 6 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.
6 live auctions across Kauai County right now.

2.4L engine. Serial no. 2TD25-16088 / 2TD25-16087. Mfg 2006. Operational when removed from service, 1 unit with bad brakes, extended outdoor storage,...
Salvage condition, extended outdoor storage, 1 unit bad brak

6860hrs at time of photograph. Serial no. 0368-08-07. Mfg 2007. Unit operational. [Equip ID# BL1857] 300in x 82in x 50in H.
Salvage/Damaged condition, high hours (6860), use for parts

w/ Cummins QSB6.7 320HP diesel engine. Serial no. T35693. Mfg 2015. 14000lbs. Engine runs. Needs new condenser. Leak in compressor.
Engine runs but needs new condenser, compressor leak

to include: 1ea model 5110/5130 (turntable damaged, separates from cart), s/n BU2RU793, mfg 2006; 1ea model 5415, s/n KTB0GG460, mfg 2011. As is. [Equ...
Salvage baggage trailers, turntable damaged, sell as-is

to include: 1ea model 663-34-4, s/n 6509740, mfg 2011; 1ea model 660-44, s/n 6210263, mfg 2014. Units non-operational. As is. For parts. [Equip ID# 52...
Non-operational units sold for parts only

3.1L 65HP engine. 2250Hrs on gage. Serial no. 2326. Mfg 2003. Operational when removed from service, extended outdoor storage. [Equip ID# 170695] 112i...
Salvage vehicle, extended outdoor storage, may need recondit