[Talk-us] Representing census-designated places (CDP), Census County Division (CCD), etc

Paul Norman penorman at mac.com
Thu Apr 28 21:07:00 UTC 2016


On 4/28/2016 12:24 PM, Nelson A. de Oliveira wrote:
> We are having a discussion about representing statistical boundaries
> in Brazil and while trying to search for similar cases I found that
> your CDP (maybe CCD too) seems to be similar:
>
> "They don't have any legal status, or represent the jurisdiction of
> any government. CDPs are created by the Census Bureau for statistical
> purposes only." - from
> https://wiki.openstreetmap.org/wiki/Talk:Key:boundary#United_States
>
> Do you represent them (and maybe other statistical boundaries) in OSM?
> If yes, what are you using? (boundary=?, border_type=?, etc)

We don't keep them as CDPs, except when they are commonly used by people 
outside the census. This is an uncommon situation, and to my knowledge, 
only the case in Alaska, which is unique in its administrative structure.

A lot of CDPs were imported and are approximately the same as city 
boundaries, so these remain and get refined as a more accurate city 
boundary.

Other CDPs are place=* areas, often with unincorporated towns.



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