Cashiers cannot legally refuse to sell you condoms if you don't show ID, as no age restriction exists for this product.

Many community health centers, school clinics, and Planned Parenthood locations provide condoms for free to anyone who asks, regardless of age. How Old Do You Have to Be to Buy Condoms? - Healthline

You can find them at drugstores like Walgreens or CVS, supermarkets like Target, gas stations, and online retailers.

You can legally buy condoms at . There is no federal or state law in the United States that sets a minimum age requirement for purchasing them. Because they are considered essential health products for preventing STIs and unintended pregnancy, they are available to everyone—including teenagers—without the need for an ID or a prescription. Key Accessibility Facts