Page hit counting is a feature of the MediaWiki software, but this feature is disabled on the English Wikipedia site for performance reasons. Wikipedia is one of the most popular web sites in the world and uses a complex of more than 200 servers to handle the load. Nearly 80% of the load is handled by fewer than 20 front end cache servers which are specialized web servers that are very fast but have very few features. Page access logs are also not maintained at this time due to the sheer number of hits experienced.
You can, however, see how many people edit a page by clicking on the "history" page. Also, there is an external site unaffiliated with Wikipedia which purports to provide page hits. Hope this helps.