USDC (USD Coin) is a type of stablecoin that is typically stored in cryptocurrency wallets that support ERC-20 tokens, as USDC is based on the Ethereum blockchain. Popular options for storing USDC include hardware wallets like Ledger Nano S, software wallets like MetaMask, and exchange wallets such as Coinbase. It is important to ensure that the wallet you choose supports USDC and has strong security measures in place to protect your funds.