Diet Pepsi Price at Taco Bell (2026) — Missouri

A Diet Pepsi costs $3.65 at Taco Bell in Missouri, United States (updated August 2026).

Taco Bell's Diet Pepsi® is priced at $3.65 in the United States right now (August 2026). That's about 8% below the average Taco Bell drink item — the 14th-cheapest of 37 we track. It's available at around 50 Taco Bell locations across the United States. Prices are sourced from delivery platforms and refreshed regularly. Check the full Taco Bell menu or compare drink prices on MenuPriceToday.

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