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2.1 Market Definition <br />Unlike radial and drive time studies that use arbitrarily chosen boundaries for customer trade <br />zones, the market defmition exercise for Ellensburg is based on zip code surveys completed by <br />cooperating merchants. Zip code surveys have their own limitations, since zip code geographies <br />can be fairly large and stretch beyond typical market boundaries. However, it is the only <br />technique that correlates clearly with customer traffic collected by merchants. Recorded zip <br />codes are used to define a primary trade area, which is then analyzed in tenns of demographics <br />and economic activity. <br />Two zip code surveys were conducted in Ellensburg in order to understand the market dynamics <br />of the community while Central Washington University was in and out of session. The first <br />survey was held in July of 2015, and the second held in October of 2015. Sixteen local <br />community retail businesses graciously participated in the zip code survey of their customers in <br />July, and seventeen participated in October. Merchants were provided with a form to record <br />customer zip codes and asked to keep the log for all customers during a ten-day period. <br />2.1.1 Zip Code Results <br />The results of the zip code survey are presented in Figures 1.1 and 1.2 on the following page and <br />are summarized as fo11ows: <br />• In July, Ellensburg businesses recorded 1,086 individual customer visits from 156 unique zip <br />codes representing 28 states and 12 foreign countries. In October, they recorded 1,808 <br />individual visits from 178 unique zip codes representing 21 states and 3 foreign countries. <br />• During both surveys, the 98926 zip code for Ellensburg had the most customer visits, <br />controlling 56% of the visits in July and 51% of the visits in October. <br />• Customers were asked to identify whether they lived inside or outside the City of Ellensburg. <br />The two results were similar with 42% of the customers living inside the city limits in the <br />July survey and 39% in October; likewise, 14% lived outside the city limits in July compared <br />with 12% in October. <br />• Central Washington University students were asked to identify themselves in the survey and <br />represented the second highest percentage of visitors to shops and restaurants in the <br />downtown. As would be expected, their results varied between the two surveys with 7% of <br />the visits in July and 20% of the visits in October. <br />• Visitors from the neighboring zip codes Kittitas and Cle Elum held 2% and 4% of their <br />respective visits in July and 4% and 5% of their respective visits in October. <br />• Customers from the rest of Washington accounted for 8% and 6% of their respective visits in <br />July and October. Many of these customers were regional in nature, so only a portion of <br />these might be considered "visitors" in the traditional sense that they do not rely on <br />Ellensburg as a regular destination for shopping. <br />• Visitors from outside the state of Washington accounted for 12% and 4% of the overall <br />respective visits from July and October. These numbers are quite significant when taken into <br />the context of the visits from the rest of Washington. Visitors represent a key portion of the <br />6