After playing around with it a bit more, here’s what finally worked for me:
global $bp;
$thisblog = $current_blog->blog_id;
$user_from_email = get_user_by('email', get_blog_option($thisblog, 'admin_email'));
$user_id = $user_from_email->ID;
$myfield = xprofile_get_field_data( 'Counties Served', $user_id, $multi_format="comma" );
$data = xprofile_format_profile_field('checkbox', $myfield);
echo $data;