Keyword search in the RU Library catalogue for historical statistics
Library of Congress Subject heading search using the name of a country or region and the word statistics
Example great britain statistics
Consult the RU Library Geospatial Map and Data website.
Google for other LibGuides from instituions around the world.
On the first page of hits when Googling "london england history libguides" you may find this page of links to free resources on the web from a research libguide at the Michigan State University: