There are 2 registered Prohibitionists in Louisiana

The Prohibition Party is the oldest existing third party in the United States. It's had an impressive history, but this year their Presidential nominee is only on the ballot in one state: Louisiana.

According to the Louisiana Secretary of State's office, these are the numbers of registrants for all the parties on the Louisiana voter registration rolls as of October 1, 2012:

Democratic 1406691
Republican 801638
None 645890
INDEPENDENT 45525
Libertarian 6189
Green Party 1598
Reform Party 1420
OTHER 1178
AMERICANS ELECT 796
CONSERVATIVE 506
INDENPENDENT 432
LIBERAL 274
CHRISTIAN 174
TEA PARTY 164
CONSTITUTION 115
AMERICAN 106
PRUD ACT RSLTS 102
MODERATE 83
OPEN 73
SOCIALIST 67
LILBERTARIAN 62
INDEPENTANT 56
INEDEPENDENT 53
DANSEREAU 48
UNDECIDED 45
CONSTITUTIONAL 35
MAJOR 33
RADICAL 29
REPUBLIC 28
NON PARTISAN 27
BANANA 23
UNAFFILIATED 23
COMMUNIST 22
INDEPEMDENT 21
CONFEDERATE 20
UNDECLARED 20
NEUTRAL 19
TEA 19
LIB 18
PROGRESSIVE 18
WHIG 18
FACIST 17
JEDI 17
LIBERTAIN 16
ANARCHIST 15

INDEPENDENCE 14
3RD PARTY 12
CENTRIST 10
NON-PARTISAN 10
PRIMARY 10
EARTH FIRST 9
REFORMIST 9
FEDERALIST 8
LIBRAL 8
PRESIDENTIAL 8
SEGREGATION 8
U S TAXPAYERS 8
INDIVIDUAL 7
MODERN WHIG 7
WARD 7
BULL MOOSE 6
ChrstnSocialist 6
DEM SOCIALIST 6
INDEPENDENT LA 6
NAT SOC 6
SOUTHERN 6
TAX PAYERS 6
DEM.REP 5
DEMOC SOCIAL 5
DEPENDS 5
PATRIOT 5
POPULIST 5
REALIST 5
WHITE 5
AEROSMITH 4
BI PARTISAN 4
CATHOLIC REG 4
CONSERVATIST 4
FREE 4
NATURAL LAW 4
PRIVATE 4
PRO LIFE 4
SOCIALIST USA 4
STATES RIGHTS 4
AMERICAN FIRST 3
BAPTIST 3
DEPENDENT 3
LA TAXPAYERS 3
LIBERALIST 3
NAP 3

NATIONAL SOCIA 3
NATIONALIST 3
NON PARTISIAN 3
PEACE&FREEDOM 3
POLITICAL 3
AM INDEPENDENT 2
AMERICAN INDEP 2
ANARCH 2
ANARCHY 2
BEST 2
BI-PARTISAN 2
BIPARTISAN 2
CAJUN 2
CHRISTIAN PROGR 2
CIVIL LIBERTAR 2
COMMITTEE 2
COMMON SENSE 2
COMMUNITARIAN 2
CONFIDENTIAL 2
CONS 2
CONSTRUCTIONALI 2
ENVIORMENTAL 2
HAZAL 2
JEFFERSONIAN 2
JESUS 2
KINGDOM 2
LABOR 2
LIBERAL REP 2
MOOR 2
NATIONAL 2
NATURAL 2
NEW PARTY 2
NON-DENOMIN 2
NUNYA 2
PAR 2
PERSONAL 2
PIRATE 2
POSSIBILITARIAN 2
PROHIBITION 2
RASTAFARIAN 2
Republitarian 2
TAXPAYERS 2
THEOCRATIC 2
THIRD PARTY 2
WORKERS 2
AID 1

AMER MOHICAN 1
AMERICA 1
ANTI-PARTY 1
BLACK 1
BLACK PANTHER 1
BLACKPANTHER 1
CHOICE 1
CHRIST CO 1
CHRONIC HIWAII 1
CITIZEN 1
CONSERVANCE 1
CU TAI WOU 1
DISCORDIAN 1
DIXIECRAT 1
DRUID 1
FAIR 1
FREE RADICAL 1
FREEDOM MOVEMT 1
FREEDOMIST 1
FREEMANS 1
GDI 1
GOD 1
GOVERNMENT 1
GRASS ROOTS 1
GREEN PEACE 1
GREENTREE 1
GYPSY 1
HONEST 1
HUMAN 1
HUMANITARIAN 1
IMPERIALIST 1
IN BETWEEN 1
INDEPENDANCE 1
INDIVIDUALIST 1
JasonJohnLeMair 1
KINGDOM OF GOD 1
LEAGUE OF SOUT 1
LIB.REPUBLICAN 1
LIBERAL DEM 1
LIBERAL REPUB 1
LOYALIST 1
MARXIST 1
MEADOW 1
MILLENNIUM 1
MINE 1
MINIMALIST 1
MIXED 1

Moderate Republ 1
MONARCHIST 1
MOTHER 1
MUG WUMP 1
MUSLIM 1
NDEPENDENT 1
NONPARTISAN 1
NUTRAL 1
PACIFIC ISLAN 1
PARTY OF ONE 1
PEACE & FREEDO 1
PEOPLES CHOICE 1
PROG DEM 1
PRS 1
RAINBOW 1
REP-AMERICAN 1
RIGHT 1
RIGHT TO LIFE 1
RIGHTWING WHIG 1
SOC-DEM 1
SOCIAL 1
SOUTHERN PARTY 1
SOUTHERN REF 1
SPLIT 1
SUB GENIUS 1
SURVIVALIST 1
THEOCRAT 1
UNION 1
UNITED NEUTRAL 1
UNITED REPUBLI 1
UNITED WE ST 1
UNITY 1
USA 1
VETERANS 1
WORKING CLASS 1
Y 1