GIS data for Byron

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Locating Byron:

From yahoo maps, the Byron urban boundaries are not displayed. So where does the town of Bryon end and begin?

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I obtained tiger files from the ESRI website http://arcdata.esri.com/data/tiger2000/tiger_download.cfm

These files are from the US Census 2000 TIGER/ Line data for Contra Costa County, Ca.

Displayed below are the roads data (orange-brown), railroads and place names. Byron is the purple polygon and Discovery Bay is the pale orange polygon:

Here is the attribute table for the file that contains the place names:

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Displayed below are the urban areas/clusters. It is interesting to note that the Byron urban areas are called "Discovery Bay urban cluster" and not necessarily urbanized areas:

Here is the attribute table for the file with the urban area data:

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Here are both the place name and urban area data combined:

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So what do we have for the town of Byron?

From the tiger files, we have road (labeled), railroad, zip code, place name and urban area data. For county data, everything is Contra Costa.

The purple polygon shows an area with Byron as a place name. The green polygon indicates Discovery Bay urban clusters. Also note that the green polygon overlaps the purple polygon (see next picture).

Green over purple = areas that are called Byron, but also called Discovery Bay urban clusters: