Thanks Eric, we did this all on the same domain, migrated from something that uses ".asp" to Wordpress.  It has been about 18 months,  hopefully you are right and this is not affecting rankings.

Patrick, thanks for the response, there is only one redirect, from the old page to the new one (this was all done on the same domain) I will check the sitemap.

Hello, we migrated a domain onto a new Wordpress site over a year ago.  We redirected (with plugin: simple 301 redirects) all the old urls (.asp) to the corresponding new wordpress urls (non-.asp).  The old pages are still indexed by Google, even though when you click on them you are redirected to the new page.

Can someone tell me reasons they would still be indexed?

Do you think it is hurting my rankings?

Patrick, thanks for the response, there is only one redirect, from the old page to the new one (this was all done on the same domain) I will check the sitemap.