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are identical for each chapter, except in four respects: 1) due to data limitations, several data sets are <br />absent in the West Eugene Community and Industrial Corridor Community neighborhoods; 2) disability <br />related population data is only available for the city -wide chapter; 3) the Cal Young Neighborhood <br />Association, Goodpasture Island Neighbors, and the Northeast Neighbors crime data is calls for service, <br />versus crimes reported in other chapters; and 4) the River Road Community Organization and Santa <br />Clara Community Organization chapters have addendums for data on property in city limits. See the <br />Appendix or these specific chapters for more information. <br />The majority of data presented in the Neighborhood Analysis comes from the U.S. Census Bureau <br />Census 2010 decennial census population and housing counts (Census 2010) and the U.S. Census <br />Bureau, American Community Survey 2005 -09 5 -Year Estimates (ACS 2005 -09). The Analysis also relies <br />on local, existing City of Eugene and Regional Geographic Information System data sources, City of <br />Eugene Police Department, and the U.S. Census Bureau, American Community Survey 2010 1 -Year <br />Estimates (ACS 2010). <br />As is the case with any data, care must be taken in how the information is used, particularly when it <br />represents a relatively small population within a geographic area. For instance, many of the data <br />indicators in the Neighborhood Analysis are based on the ACS 2005 -09 census estimates that have <br />been determined based on a sample of the population for each census block group. While this is the <br />best data for economic, population and housing characteristics available, it is important to understand <br />that the data provided is an estimate rather than a precise measure. Moreover, while the data <br />presented in the 2011 Neighborhood Analysis has been collected so that individual neighborhoods can <br />be compared with each other and the city as a whole, it is not comparable with the data included in <br />the 1990 and 2010 analyses as the boundaries and methodology for collecting census data have <br />changed over time. <br />Users can find which data source is used for a particular data indicator by looking at the references <br />included at the bottom of each map, chart, or graph. Detailed information about the data sources, data <br />indicators, boundaries, definitions, margins of error, alternative data sources, nuances discussed <br />above, and other relevant background information is provided in the Appendix to the 2011 <br />Neighborhood Analysis. <br />We are pleased to present the City of Eugene's 2011 Neighborhood Analysis as a shared resource for <br />City staff, and neighborhood and community organizations. We hope you will find it useful in serving <br />the people and places that make up Eugene. <br />