Largest lakes & reservoirs in Hill Country Region, TX by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume data is unknown or does not apply, so you may see fewer lakes than the total 14 articles we have published for Hill Country Region, TX lakes.
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Below are lakes within USA > US Southwest Region > Texas > Hill Country Region, TX > Compared by water volume. This list does not represent all lakes in Hill Country Region, TX, only the 14 Hill Country Region, TX lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Lake Amistad, TX / Mexico (Hill Country Region, TX, Mexico, North Mexico, Texas, US Southwest Region, USA) |
3,159,270 ac-ft | (Also known as International Amistad Reservoir) The Spanish word “Amistad” translates to “Friendship” in English … little wonder, then, that west Texas’ Lake Amistad is one of the Lone Star State’… |
| Lake Travis, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
1,131,650 ac-ft | Lake Travis is a beautiful 18,930 acre reservoir in the Hill Country of central Texas, about 12 miles northwest of Austin. It is over 63 miles long wi… |
| Lake Buchanan, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
875,566 ac-ft | (Also known as "Big Buc") Lake Buchanan, the oldest and northernmost of the Highland Lakes, is known as “Big Buc” to the locals and anglers who regularly visit the area. It is… |
| O. H. Ivie Lake (Hill Country Region, TX, Texas, US Southwest Region, USA) |
554,340 ac-ft | (Also known as Lake Ivie, Stacy Reservoir) On a hot summer day in the northern Hill Country region of Texas, Lake Ivie is an ideal place to be. Officially named O.H.Ivie Reservoir, the waters a… |
| Canyon Lake, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
382,000 ac-ft | Canyon Lake, with a maximum depth of 125 feet, is one of the deepest and most scenic lakes in Texas. Canyon Lake, formerly known as Canyon Reservoir,… |
| Medina Lake, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
254,000 ac-ft | (Also known as Lake Medina) Located in Texas Hill Country, Medina Lake is 40 miles northwest of San Antonio in Bandera and Medina Counties. Controlled by the Bexar-Medina-Atascos… |
| Lake Lyndon B. Johnson, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
134,353 ac-ft | (Also known as Lake LBJ) Lake Lyndon B. Johnson, also called Lake LBJ, is a 6,449 acre lake located in Llano and Burnet counties of the Texas Hill Country. The third of seven… |
| Georgetown Lake (Hill Country Region, TX, Prairies and Lakes Region, TX, Texas, US Southwest Region, USA) |
37,010 ac-ft | (Also known as Lake Georgetown, Georgetown Reservoir) A perfect example of an engineered water supply, Georgetown Lake covers nearly 1,300 acres along the North Fork of the San Gabriel River. Part of the… |
| Lake Austin, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
21,725 ac-ft | Scenic Lake Austin snakes its way through the Austin Hill Country on the Colorado River in Central Texas. It is the sixth lake down the chain of the H… |
| Inks Lake, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
15,063 ac-ft | Inks Lake is located about an hour northwest of Austin in the picturesque Texas Hill Country. Measuring just 4.2 miles long and 3000 feet at its wides… |
| Lake Nasworthy, TX (Hill Country Region, TX, Panhandle Plains Region, TX, Texas, US Southwest Region, USA) |
8,432 ac-ft | In the heart of Texas, Lake Nasworthy is a cool place in the heat of summer. This lake provides a welcome spot of relief, beckoning visitors to submer… |
| Lake Marble Falls, TX (Hill Country Region, TX, Texas, US Southwest Region, USA) |
6,420 ac-ft | (Also known as Marble Falls Reservoir) Lake Marble Falls, in the central Texas Hill Country, is the 4th and the smallest lake in the Highland Lakes chain. It was created by the Lower Colora… |