There are many exchanges in Internet allowing bitcoin purchase for USD or your local currency through conventional payment ways (Visa\Mastercard, PayPal, etc.). We prepared a list of the most popular and trusted exchanges.

Please note, most of these options require user verification before bitcoin purchase, in line with KYC/AML regulations (Know Your Customer/Anti Money Laundering). This is a formal/regular procedure, which is done only one time, when you register an account. 

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• Cash.app (Cash App): Yes, fully works in the USA. You can buy, sell, and hold Bitcoin directly in the app with as little as $1. It’s one of the easiest options for US users, integrated with Square/Block services. Widely available across states.
• Coinbase: Yes, works nationwide (available in all or nearly all US states, including Illinois). It’s one of the most popular, regulated, and beginner-friendly US exchanges. Supports debit card/PayPal buys in many cases.
• CEX.IO: Yes, available in the USA (with licenses in many states). US users can buy crypto with cards, bank transfers, etc., and access spot trading. Some features (like staking) may be limited, but core buying/selling works.
• LibertyX: Yes, works in the USA. Allows buying Bitcoin with cash at thousands of local stores (e.g., pharmacies, convenience stores). Still operational for in-person cash purchases.
• Bitcoin ATM Locator : Yes, widely available across the USA (check Coin ATM Radar for locations near you in Chicago). Many require some verification (e.g., phone or ID for larger amounts), but anonymous/low-KYC options exist depending on the machine/operator.