Un ited ▁States ▁president ial ▁advis ors ▁Category : Year ▁of ▁birth ▁missing ▁( l iving ▁people ) <0x0A> </s> ▁M err im ac ▁is ▁a ▁census - design ated ▁place ▁( CD P ) ▁in ▁Mont gom ery ▁County , ▁Virginia , ▁United ▁States . ▁The ▁population ▁was ▁ 2 , 1 3 3 ▁at ▁the ▁ 2 0 1 0 ▁census . ▁It ▁is ▁part ▁of ▁the ▁Black s burg – Christ ians burg ▁Metropolitan ▁Statist ical ▁Area ▁which ▁en comp ass es ▁all ▁of ▁Mont gom ery ▁County ▁and ▁the ▁city ▁of ▁Rad ford . ▁ ▁History ▁According ▁to ▁one ▁source , ▁M err im ac ▁was ▁so ▁named ▁because ▁coal ▁from ▁area ▁mines ▁was ▁used ▁on ▁CSS ▁Virginia ▁( former ly ▁). ▁A ▁post ▁office ▁called ▁M err im ac ▁M ines ▁operated ▁from ▁ 1 9 0 4 ▁until ▁ 1 9 3 5 . ▁ ▁The ▁Link ous - K ipp s ▁House ▁and ▁Mont gom ery ▁Prim itive ▁Bapt ist ▁Church ▁are ▁listed ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places . ▁ ▁Geography ▁M err im ac ▁is ▁located ▁at ▁ ▁( 3 7 . 1 9 2 2 5 7 , ▁− 8 0 . 4 2 2 2 4 7 ). ▁ ▁According ▁to ▁the ▁United ▁States ▁Census ▁Bureau , ▁the ▁CD P ▁has ▁a ▁total ▁area ▁of ▁ 1 . 8   square ▁miles ▁( 4 . 7   km ² ), ▁all ▁of ▁it ▁land . ▁ ▁Dem ograph ics ▁As ▁of