Employer establishment addresses from Oregon's 2014 Quarterly Census of Employment and Wages (QCEW) data were geo-coded into a grid of one square mile sections. The state grid consists of 97,790 individual square mile sections. Each blue section represents one square mile that had at least one establishment.
All of Oregon’s 141,000 establishments were located in just 8,386 square mile sections, or about 9 percent of the total state grid. Almost 40 percent of the blue sections had only one covered establishment present. The highest density section, located in downtown Portland, had more than 3,000 establishments.
The top three industries by number of establishments in the state were: other services (which includes repair, maintenance, and personal services) at 15 percent; professional, scientific, and technical services (11%); and health care and social assistance (10%).