You can't 'unlink' the iPhone from your iTunes account (unless you change the iTunes account you're logged into on the computer, then sync, but ion that case you won't be able to use the apps you have already bought).
PEOPLE OVERVIEW. The 2016 Laguna Hills, California, population is 31,748. There are 4,810 people per square mile (population density).
The population increased from 61,891 at the 2000 census to 62,979 in 2010. The city of Dana Point to the south separates Laguna Niguel and the Pacific Ocean. On the east side, Laguna Niguel is separated from San Juan Capistrano by a significant ridge running along Trabuco Creek. To the north lie Aliso Viejo and Laguna Hills. Laguna Niguel is also bordered by Laguna Beach and Mission Viejo.