| Type: | Elected |
| Tin Sum | |
| Year: | 1985 |
| Parl Name: | Sha Tin District Council |
| Member: | Tsang Kit (Nonpartisan) |
| Map1: | TinSum |
| Map Entity: | Sha Tin District |
| Map Size: | 250px |
| Region Label: | Legislative Council constituency |
| Region: | New Territories North East |
| District: | Sha Tin |
| Population: | 14,327 (2019)[1] |
| Elects Howmany: | One |
| Electorate: | 9,202 (2019)[2] |
Tin Sum is one of the 36 constituencies of the Sha Tin District Council. The seat elects one member of the council every four years. It was first created in 1985 Hong Kong district boards election. The constituency boundary is loosely based on the Tin Sum village and Lung Hang Estate.
| Election | Member | Party | |
|---|---|---|---|
| 1985 | Choy Kan-pui | Nonpartisan | |
| 198? | HKAS | ||
| Election | First Member | First Party | Second Member | Second Party | ||
|---|---|---|---|---|---|---|
| 1988 | Choy Kan-pui | HKAS | Fung Chi-wood | Nonpartisan | ||
| 1990 | United Democrat | United Democrat | ||||
| Election | Member | Party | |
|---|---|---|---|
| 1991 | Choy Kan-pui | United Democrat | |
| 1991 | Independent | ||
| 1993 | Civil Force | ||
| 1996 | Progressive Alliance/Civil Force | ||
| 2003 | Pun Kwok-shan | Civil Force | |
| 2011 | Lau Kong-wah | DAB/Civil Force | |
| 2013 by-election | Pun Kwok-shan | Civil Force | |
| 2014 | NPP/CF | ||
| 2019 | Tsang Kit | Nonpartisan | |