Counties with an implausible number of registered voters compared to number of living citizens:

ArapahoeColorado
BoulderColorado
DenverColorado
DouglasColorado
JeffersonColorado
BrowardFlorida
ClayFlorida
FlaglerFlorida
Miami-DadeFlorida
OrangeFlorida
Palm BeachFlorida
Santa RosaFlorida
ClarkNevada
WashoeNevada
BrunswickNorth Carolina
BuncombeNorth Carolina
CabarrusNorth Carolina
ChathamNorth Carolina
DareNorth Carolina
DurhamNorth Carolina
ForsythNorth Carolina
GuilfordNorth Carolina
MecklenburgNorth Carolina
OrangeNorth Carolina
UnionNorth Carolina
WakeNorth Carolina
AlleghenyPennsylvania
DelawarePennsylvania
LuzernePennsylvania
MontgomeryPennsylvania
NorthamptonPennsylvania
PhiladelphiaPennsylvania
Alexandria CityVirginia
ArlingtonVirginia
FairfaxVirginia
LoudounVirginia
Prince WilliamVirginia
COUNTYSTATE