Fact · infra · 2026-10-13
Dongjiang water supply
東江水供應
Figure and reference date
supplies about 70% of Hong Kong's drinking water
供應香港約七成食水
Notes and definition
Hong Kong's drinking water comes mainly from the Dongjiang River (via the Dongjiang water supply scheme) and local catchment areas. Dongjiang water supplies about 70% of Hong Kong's drinking water, with the rest from rainwater collection and desalination.
Other figures in this group (infra)
Figures in the same group are not necessarily additive — check the basis note above first. the statistics index (same group).
| Item / 項目 | Figure / 數字 | As of / 時點 | Source / 來源 |
|---|---|---|---|
| Hong Kong has no postal code system 香港不設郵政編號 | No postal codes are used; mail is addressed by locality 全境不使用郵遞區號，郵寄以地址為準 Hongkong Post does not assign postal codes to local addresses. Local mail only requires the address and locality (Hong Kong Island, Kowloon or the New Territories). If an international shipping system forces a field, it may be left blank or filled with a placeholder such as 00000, but that is not an official code. | 2026-10-15 | Hongkong Post: No postal code system in Hong Kong |
| Hong Kong water tariff (tiered) 香港水費收費（四級累進制） | First 12 m³ free; next 31 m³ at HK$4.16/m³; next 19 m³ at HK$6.45/m³; above at HK$9.70/m³ 首12立方米免費；其後31立方米每立方米HK$4.16；再其後19立方米HK$6.45；超過部份HK$9.70 The Water Supplies Department charges a four-tier tariff per four-month billing cycle. The first 12 m³ are free, with rates increasing for higher usage. Sewage charges are separate. Actual charges follow the latest WSD announcement. | 2026-10-15 | Water Supplies Department: Water and sewage charges tariff |
| Options for sending mail from Hong Kong to Mainland China 香港寄郵件往內地嘅途徑 | Hongkong Post offers surface mail, airmail, parcels and speedpost to the Mainland 香港郵政提供平郵、空郵、包裹及速遞服務往內地 Mail and parcels from Hong Kong to the Mainland can be sent via Hongkong Post surface mail, airmail, parcel or Speedpost, or through private couriers. Cost and delivery time depend on weight, size and destination. Some items may require customs declaration or are prohibited. | 2026-10-15 | Hongkong Post: Mail services to Mainland China |
| Hongkong Post 香港郵政 | established 1841 1841 年成立 Hongkong Post was established in 1841 and is one of Hong Kong's oldest government departments. It provides postal, electronic and financial services (including Post Office Savings Bank). | 2026-10-13 | Hongkong Post |
Other figures from the same official source
These figures come from the same registered document: “Water Supplies Department: water resource data” (Water Supplies Department). Being in one document does not make them additive.
| Item / 項目 | Figure / 數字 | As of / 時點 | Source / 來源 |
|---|---|---|---|
| Dongjiang water supply from Guangdong (2025) 自廣東輸入東江水（2025年） | 819.80 million m³ 819.80 百萬立方米 WSD water-resource data: 819.80 Mm³ of Dongjiang water supplied in 2025. | 2025 | Water Supplies Department: water resource data |
| Fresh water daily average consumption (2025) 食水每日平均用量（2025年） | 2.94 million m³/day 2.94 百萬立方米/日 WSD data: 1,074.59 Mm³/year, 2.94 Mm³/day (+1.7% YoY). | 2025 | Water Supplies Department: water resource data |
| Annual fresh water consumption (2025) 全年食水用量（2025年） | 1,074.59 million m³ 1 074.59 百萬立方米 WSD water resource data: 1,074.59 Mm³ consumed in 2025. | 2025-12-31 | Water Supplies Department: water resource data |
| Dongjiang water supply (2025) 東江水輸入量（2025年） | 819.80 million m³ 819.80 百萬立方米 Dongjiang supplies 819.80 Mm³ in 2025, about 70-80% of demand. | 2025-12-31 | Water Supplies Department: water resource data |
How to cite this figure
Hong Kong Story, “Dongjiang water supply”, https://hongkongstory.org/en/facts/infra-water-supply-dongjiang, data as at 2026-10-13 (retrieved ＿).
中文：香港紀事館，〈東江水供應〉，https://hongkongstory.org/facts/infra-water-supply-dongjiang，資料時點 2026-10-13（查閱日期 ＿）。
Machine-readable: /api/v1/facts.json (id = infra-water-supply-dongjiang) · OpenAPI 3.1 ·/llms.txt
Registered source
Water Supplies Department: water resource data
Water Supplies Department
The official document carries no registered publication date, so only the retrieval date 2026-10-11 is given — no publication year is invented.
This site is a secondary compilation: the official text prevails. If the figure above differs from the official document, the official document is correct.