Needed this info and found some. This is easier than any I found.
\nOpen “Pages” from dashboard. From this display of all your pages, hover over the “trash” option on page you are looking for, and view page ID in link display at bottom left of page. Look for “post=XXX” in link displayed at bottom left (I forgot technical term for this bar). <\/p>\n
I needed to “exclude” pages from my “Pages” widget as I had included them in a more descriptive category elsewhere. Just enter the “xxx” number part of the page ID to exclude them from the “Pages” widget.<\/p>\n
There you have it. Found many page ID’s quickly this way. Hope this helps you find Page ID’s in much less time than it initially took me.<\/p>\n","protected":false},"template":"","class_list":["post-7596211","topic","type-topic","status-publish","hentry","topic-tag-page-id","topic-tag-widget"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/7596211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/7596211\/revisions"}],"wp:attachment":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/media?parent=7596211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}