Ogallala Aquifer 2026
America's largest underground water reserve is running out — and 8 states are at risk
Sustainability Awakening · 2026
What Is the Ogallala?
The High Plains Aquifer spans 174,000 square miles under 8 states — Kansas, Nebraska, Texas, Colorado, Oklahoma, South Dakota, New Mexico, and Wyoming. It supplies 30% of all US groundwater used for irrigation.
The Numbers Are Alarming
of aquifer already depleted since 1950
average water table drop in Kansas since 1996
to recharge naturally — once it's gone, it's gone
What's Causing It?
80% of Ogallala water goes to crop irrigation — much of it for ethanol corn
Hotter summers increase evaporation and crop water demand
Each state manages its own share — with no binding conservation targets
What Happens If It Runs Dry?
- $35 billion/year in agricultural output at risk
- Food prices spike across the US
- Hundreds of small farming towns face collapse
- Rural communities lose drinking water access
- US beef and grain exports drop sharply
Is There Hope?
Drip systems cut water use 30–50% vs flood irrigation
Sorghum and winter wheat use far less water than corn
Voluntary 20% use reduction targets launched in 2023
The Clock Is Ticking
The Ogallala Aquifer took 10,000 years to fill. At current rates, large sections in Texas and Kansas could be depleted within decades.
Explore water crisis data on our live dashboard →
Reservoirs at Historic Lows
Decades of drought have pushed major US reservoirs to critically low levels, reshaping water rights and policy across the West.
Bureau of Reclamation Acts
Historic Tier 2 water cuts slash Arizona allocations by 21%, forcing farmers to fallow millions of acres and cities to accelerate conservation.
Farms Bear the Brunt
Farming consumes 70–80% of Colorado River water. As cuts deepen, growers idle land, switch crops, and sell water rights at record prices.
Cities Lead Water Savings
Las Vegas recycles 99% of indoor water. Phoenix cut per-capita use 40% since 1980. Smart metering and pricing reform drive remarkable efficiency gains.