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<div class="moz-cite-prefix">On 11/10/13 1:37 AM, Elliott Plack
wrote:<br>
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<div dir="ltr">In Baltimore County, MD, we have 0 incorporated
towns with nearly 1M people. There are however plenty of
informal towns that have become CDPs. I believe the Census uses
ZCTAs to construct the CDPs, so they're based on ZIP Codes,
which in turn are based on postal routes.<br>
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maybe in MD, but not here in upstate NY. i have an Averill Park zip
code,<br>
but am a mile or so outside of the Averill Park CDP.<br>
<br>
richard<br>
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