The real estate and employers dominating Fairfax County's economy. Of course Amazon has a place in this.

A little piece of Amazon.com Inc. (NASDAQ: AMZN) goes a long way.

Fairfax County’s Economic Development Authority worked with 164 companies in calendar year 2017 to add, eventually, nearly 8,200 jobs. Three announcements, including a doozy from Amazon Web Services, accounted for 70 percent of that total.

That’s one of the more interesting stats from the county’s fiscal year 2018 Comprehensive Annual Financial Report, a detailed accounting of the county’s bottom line, and all things that…