Utilizing descriptive keywords and phrases that are likely to be used in searches can have an impact on your site’s overall search engine optimization as the footer is displayed on every page of your site, including all search results. Search engines pick up this text as they crawl your site for content and use it to decide if your website is relevant for certain searches.
So, if you want to increase the likelihood that your site shows up for Sunriver Homes for Sale, California, then you might want to include this text in your footer. Don’t make it a dumping ground for SEO keywords, however. Search engines can see what you’re doing there; they balance this information against other content on your site too.