If you're in a large geographical area, it may make sense to promote your own SEO website. SEO by nature, is not limited to geographic areas. However people in large metro areas may seek out an SEO expert in their local area. Whether for real estate, or any other small business, a local business owner may be more likely to seek out someone in the area to help them with SEO.
For more information about Orange County SEO check out my main website for Orange County SEO.