Ranking factors
- TDS (total dissolved solids)
- Calcium
- Magnesium
- Bicarbonate
- Natural source protection
The US has dozens of historically important mineral springs, but only a handful reach the high-TDS levels found in famous European mineral waters. Here are the most mineral-rich.
Extremely high mineral concentration — up to ~2,800 mg/L TDS in No. 4. The most mineralized commercially bottled water in America.
Unique mineral profile with naturally occurring lithium, alongside calcium, magnesium and bicarbonate.
Naturally carbonated mineral waters with strong bicarbonate content. The premier US example of a natural sparkling mineral source.
Historic thermal waters used at public fountains and historic bathhouses. Moderate mineralization but exceptional purity and protection.
Crazy Water Springs in Mineral Wells, Texas. Its highest tier (No. 4) exceeds 2,800 mg/L TDS — the most mineralized commercially bottled water in the US.
Primarily by TDS (total dissolved solids), then by individual minerals (calcium, magnesium, bicarbonate) and by source protection.
Generally yes for most healthy adults, though people on low-sodium or low-mineral diets should choose softer waters or consult a physician.
