This describes the population codes which can be found in column 11 of the sequence
index file.

There are also two tsv files, which contain the population codes and descriptions for both the 
sub and super populations

ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/20131219.populations.tsv
ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/20131219.superpopulations.tsv

And you can find PED files and fuller descriptions of all our samples and genders in 

ftp://ftp.1000genomes.ebi.ac.uk/vol1/ftp/technical/working/20130606_sample_info/

CHB	Han Chinese              Han Chinese in Beijing, China 
JPT	Japanese                Japanese in Tokyo, Japan
CHS	Southern Han Chinese    Han Chinese South 
CDX	Dai Chinese             Chinese Dai in Xishuangbanna, China
KHV	Kinh Vietnamese         Kinh in Ho Chi Minh City, Vietnam
CHD	Denver Chinese          Chinese in Denver, Colorado (pilot 3 only)
	
CEU	CEPH    Utah residents (CEPH) with Northern and Western European ancestry 
TSI	Tuscan Toscani in Italia 
GBR	British British in England and Scotland 
FIN	Finnish Finnish in Finland 
IBS	Spanish Iberian populations in Spain 
	
YRI	Yoruba Yoruba in Ibadan, Nigeria
LWK	Luhya   Luhya in Webuye, Kenya
GWD	Gambian Gambian in Western Division, The Gambia 
MSL	Mende   Mende in Sierra Leone
ESN	Esan    Esan in Nigeria
	
ASW	African-American SW     African Ancestry in Southwest US  
ACB	African-Caribbean       African Caribbean in Barbados
MXL	Mexican-American        Mexican Ancestry in Los Angeles, California
PUR	Puerto Rican            Puerto Rican in Puerto Rico
CLM	Colombian               Colombian in Medellin, Colombia
PEL	Peruvian                Peruvian in Lima, Peru

GIH	Gujarati                Gujarati Indian in Houston, TX
PJL	Punjabi                 Punjabi in Lahore, Pakistan
BEB	Bengali                 Bengali in Bangladesh
STU	Sri Lankan              Sri Lankan Tamil in the UK
ITU	Indian                  Indian Telugu in the UK