The search engine revealed it February it planned to trial the service, which will offers speeds "100 times faster than what most Americans have access to today" in a small number of US locations, with the service available to between 50,000 to 500,000 people.
Google asked communities to put together proposals as to why they should be considered as the trial locations. Initially, the search engine planned to announce which locations had been successful by the end of this year, but in a blog, president for access services Milo Medin, revealed the selection has been delayed.
"We had planned to announce our selected community or communities by the end of this year, but the level of interest was incredible - nearly 1,100 communities across the country responded to our announcement - and exceeded our expectations."
"While we're moving ahead full steam on this project, we're not quite ready to make that announcement. To be clear, we're not re-opening our selection process—we simply need more time to decide than we'd anticipated," he added.
Google had already launched a beta trial of the fibre network with 850 residents of Stanford, near its headquarters in California.
See also: BT tests 1Gbps broadband service