The CIA World Factbook Edition 2025, the latest with this field Geography
Major aquifers In 5 editions of 36.
Major aquifers was published in 5 editions of the CIA World Factbook, from 2021 to 2025. The 2025 edition carries it in 53 entries, in its Geography section. Every entry is shown as that edition published it.
- entries in the 2025 edition
- 53
- the first edition with it
- 2021
- the latest edition with it
- 2025
Published as “Major aquifers” (2021 to 2025).
the entry has the field in that editionnot in that editionthe open editionEach entry below ends in its editions with Major aquifers, 1990 to 2025. Point at a year above to follow it down; choose one in a row to read that edition’s text there.
No entries match. Try a shorter word.
Entries with Major aquifers in each edition
Select a bar to open that edition.
World
1 entryWorld
aquifers are underground layers of water-bearing permeable rock formations; groundwater from aquifers can be extracted using a water well
The World Factbook lists 37 major aquifers across 52 countries:
Africa - 13
Asia - 10
North America - 5
South America - 3
Europe - 4
Australia -2
- these aquifers contain the bulk of the stored volume of groundwater;
- this represents more than 30% of the world's fresh water;
- in the US, groundwater is primarily used for irrigation;
- globally, 70% of the groundwater withdrawn is used for agriculture;
- groundwater also supplies almost half of all drinking water worldwide
Africa
27 entriesAlgeria
- Lullemeden-Irhazer Aquifer System,
- Murzuk-Djado Basin,
- North Western Sahara Aquifer,
- Taoudeni-Tanezrouft Basin
Asia
6 entriesRussia
- Angara-Lena Basin,
- Pechora Basin,
- North Caucasus Basin,
- East European Aquifer System,
- West Siberian Basin,
- Tunguss Basin,
- Yakut Basin
Europe
1 entryMiddle East
7 entriesNorth America
3 entriesUnited States
- Northern Great Plains Aquifer,
- Cambrian-Ordovician Aquifer System,
- Californian Central Valley Aquifer System,
- Ogallala Aquifer (High Plains),
- Atlantic and Gulf Coastal Plains Aquifer
Oceania
1 entrySouth America
7 entriesCite this page
Central Intelligence Agency. The World Factbook 2025, “Major aquifers”, all entries. Archived by The Factbook, thefactbook.org/fields/major-aquifers.