Verizon had 15 million homes passed with FTTP by 2010, it's now about 18 million with symmetrical gigabit available to nearly all of them, 2 Gbps available to some. AT&T are at 16.5 million and building at 2.5-3 million a year with 5 Gbps available to some areas. Frontier are targeting 10 million homes passed by 2025. They have various other smaller full fibre providers.
Almost every US home has either full-fibre or cable service. The majority of the cable offers gigabit, and the networks are being upgraded to be able to provide multiple gigabits per second downstream and gigabit or more upstream.
They're inevitably going to be behind the UK. We've 30 million premises packed into less than 94,000 square miles, ~320 per square mile. They're at 140 million premises across 3.53 million square miles, 39.7 premises per square mile. They have much wider urban sprawl than we do, with huge amounts of land in between those urban sprawls.