Where should you start?
If you lose your wallet or bag in Korea, first contact the lost-property desk of the station, transport operator or venue you last visited. Write down the time, location and distinctive features of the item.
The police's current website
The Korean National Police Agency now presents Lost Property Services on Police Civil Service 24 (minwon24.police.go.kr), with options for Search Found Property (습득물 검색) and Report Lost Property (분실물 신고). To begin an online loss report, use the site's Civil Services > Applications and Information area and search for ‘분실물 신고’. The police also list in-person reporting at a police station, district police office or local precinct.
Important limits
The service describes reporting property that was lost, not stolen. For suspected theft, contact police rather than treating an ordinary loss report as a criminal complaint. The official guide says online reports cannot be edited directly: you must cancel and file a corrected report. Lost vehicle plates require an in-person report at a police office.
Before going to collect something
If a found-property listing looks promising, note the case or management number, confirm which office is holding the item and call ahead about identification and collection requirements. The site's general information line is 182 (paid; weekdays 09:00–18:00), shown as +82-182 for calls from overseas. Actual login, language options and individual case processing depend on the live service.
For a lost passport, also contact your country's embassy or consulate; for a phone, contact your provider as appropriate. The lost-property portal is not an emergency police response service.