Is it possible for city to be located at 30 degrees north 150 degrees weast?

Yes, it is possible for a city to be located at 30 degrees north and 150 degrees west. This coordinate points to a location in the eastern part of the Pacific Ocean, near the coast of California. While there may not be a large city directly at that exact coordinate, there are smaller towns and communities nearby. The closest major city would be in California, though it would not be precisely at those coordinates.