Fact · utilities · 2025-03-31
WSD water accounts
水務署用戶帳戶數目
Figure and reference date
3,278,096 accounts
3 278 096 個
Notes and definition
WSD Key Facts 2025: breakdown by residential, commercial, government and flushing accounts.
Other figures in this group (utilities)
Figures in the same group are not necessarily additive — check the basis note above first. Utilities & energy infrastructure.
| Item / 項目 | Figure / 數字 | As of / 時點 | Source / 來源 |
|---|---|---|---|
| Dongjiang water supply volume 東江水輸港水量 | 816 million m³ (FY2024-25) 8.16 億立方米（2024-25年度） | 2025 | Water Supplies Department: Hong Kong water supplies facts |
| Dongjiang water share of freshwater supply 東江水佔全港淡水供應比例 | About 77% (2024) 約 77%（2024年） WSD commonly cites a range of about 70–80%. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Fuel mix for electricity generation 香港整體發電燃料組合 | Natural gas 55%, nuclear + renewables 28%, coal 17% (2025) 天然氣 55%、核能及可再生能源 28%、煤 17%（2025年） On a sent-out basis. | 2025 | Environment and Ecology Bureau: energy supply |
| Total impounding reservoir capacity 全港水塘總容量 | 17 reservoirs, 586,000,000 m³ 17 個水塘、共 5.86 億立方米 Largest: High Island (281m m³) and Plover Cove (230m m³) reservoirs. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Dongjiang inflow (recent years) 東江水輸港量（近年） | 2022 ≈810m, 2023 ≈820m, 2024 ≈818m m³ 2022≈8.10億m³、2023≈8.20億m³、2024≈8.18億m³ About 77% of total fresh-water consumption in 2024. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Town gas pipeline network length 煤氣管道網絡長度 | over 3,700 km (2025) 逾 3,700 公里（2025） Towngas corporate brochure (company first-hand). | 2025 | Hong Kong and China Gas: corporate overview (pipeline network) |
| Submarine cable landing systems 海底光纜登陸系統 | 10 landing stations, 11 systems (to 2024-12) 10 個登陸站、連接 11 個系統（截至2024-12） Plus 25 land cables to the mainland; total capacity over 284,130 Gbps. | 2024-12 | OFCA: key telecommunications statistics |
| CLP peak electricity demand 中電本地最高電力需求 | 7,336 MW (2024) 7 336 兆瓦（2024年） CLP annual peak demand; sales about 36.1 TWh. | 2024 | CLP Information Kit |
| Average daily fresh-water consumption 食水每日平均用量 | 2.91 million m³ (FY2024-25) 291 萬立方米（2024-25年度） WSD Hong Kong The Facts: water. Annual usage 1,063 million m³. | 2024-25 | Water Supplies Department: Hong Kong water supplies facts |
| Town gas customer accounts 煤氣用戶數目 | 2,056,216 (2025) 2 056 216 戶（2025） Towngas 2025 corporate booklet: residential plus commercial/industrial; residential ≈54% of gas sold. | 2025 | Hong Kong and China Gas: corporate overview (pipeline network) |
| Annual water consumption 全年食水用量 | 1,063 million m³ 1,063 百萬立方米 WSD annual report water consumption. | 2024/25 年度 | Water Supplies Dept: Annual Report (water consumption & Dongjiang supply) |
| Mobile service subscribers and penetration 流動服務用戶數目及滲透率 | about 34.4 million (441.4% penetration) 約 3,437 萬戶（滲透率 441.4%） OFCA key communications statistics. | 2026年3月 | OFCA: Key Communications Statistics |
21 more figures in this group are listed in Utilities & energy infrastructure.
Other figures from the same official source
These figures come from the same registered document: “WSD Key Facts 2025” (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 |
|---|---|---|---|
| Water treatment works output capacity (2025) 食水濾水廠日產量（2025年） | 18 works, 4.51 million m³/day 18 座，每日 451 萬立方米 WSD Key Facts: 18 water treatment works, 4.51 million m³/day combined capacity. | 2025 | WSD Key Facts 2025 |
| Desalination plant 海水化淡廠 | 1 plant (Tseung Kwan O), 0.14 million m³/day 1 座（將軍澳），日產能 0.14 百萬立方米 WSD Key Facts: the Tseung Kwan O desalination plant supplies 0.14 Mm³/day. | 2025-03-31 | WSD Key Facts 2025 |
How to cite this figure
Hong Kong Story, “WSD water accounts”, https://hongkongstory.org/en/facts/water-accounts-2025, data as at 2025-03-31 (retrieved ＿).
中文：香港紀事館，〈水務署用戶帳戶數目〉，https://hongkongstory.org/facts/water-accounts-2025，資料時點 2025-03-31（查閱日期 ＿）。
Machine-readable: /api/v1/facts.json (id = water-accounts-2025) · OpenAPI 3.1 ·/llms.txt
Registered source
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.