: Often cited as the overall price leader, being roughly 21.4% cheaper than Walmart for general groceries. Their Kirkland Signature sparkling flavored waters are a primary target for bulk savings.

If you don't have a membership, these retailers offer "everyday low prices" that often rival wholesale clubs.

: Competes directly with Costco on unit price, particularly for large formats like 24-packs of mainstream brands.

Finding the cheapest sparkling water is about knowing which retailers prioritize volume over branding. As of 2026, the strategy for the lowest price typically involves choosing store-brand multi-packs at wholesale clubs or specific discount grocers. 1. The Heavy Hitters: Wholesale Clubs

: Large grocers like Kroger or Wegmans often run aggressive promotions during 3-day holiday weekends (Labor Day, Memorial Day), which can bring 12-packs down to around $4.00–$5.00 .

: The Clear American brand is one of the cheapest options available by volume, with 1-liter bottles frequently priced around $0.84 (approx. 2.5¢ per fl oz).

: Their Belle Vie brand is widely praised for being highly carbonated and affordable, often priced under $4 for a 12-pack .

: Known for "loss leader" pricing, sometimes offering Polar Seltzer 8-packs for as low as $2.50 . 3. The "Stock Up" Strategy