If you have ACF Pro, create an options page to hold the repeater.
If not then on the second page where you want to show the repeater use the post ID from the other page.
Let’s say for example that the post ID of the contact page is ‘1234’
On the locations page you would
if (have_rows('repeater-name', 1234)) {
while (have_rows('repeater-name', 1234)) {
the_row();
the_sub_field('sub_field_name');
}
}