Plum Creek is a

census-designated place A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such ...

in Montgomery County, Virginia, United States, just east of Radford. The population as of the 2010 Census was 1,524.Virginia Trend Report 2: State and Complete Places (Sub-state 2010 Census Data).
Missouri Census Data Center. Accessed 2011-06-08.

References

Census-designated places in Montgomery County, Virginia Census-designated places in Virginia {{MontgomeryCountyVA-geo-stub