Dublin -v- Seoul

Founded
Dublin – 988 AD
Seoul – 1394 AD

Area
Dublin – 114.99 km2
Seoul – 605.25 km2

Population
Dublin – 525,380
Seoul – 10,464,051

Density
Dublin – 4,398/km2
Seoul – 17,288.8/km2

Population of metropolitan area
Dublin – 1,801,040
Seoul – 23,616,000

Citizens
Dublin – Dub, Dubliner
Seoul – Seoulite, 서울시민(Seoul simin)

Ethnicty of population
Dublin – 90.85% White (81.25% White Irish, 9.23% White Other, 0.37% Irish Traveller), 3.34% Asian/Asian Irish, 1.12% Black/Black Irish, 1.47% Bi-Racial/Other, 3.22% Not Stated
Seoul – 285,618 foreigners registered in city at end of 2011 (186,631 of these were citizens of the People’s Republic of China with Korean ethnicity)

Administrative Divisions
Dublin – Unicameral area with 13 electoral divisions
Seoul – 25 districts or gu, divided in 522 neighbourhoods or dong.

Rivers
Dublin – Liffey, Dodder (south bank), Tolka (north bank)
Seoul – Han, Jungnangcheon (north bank), Tancheon (south bank)

Number of Bridges Crossing Major River
River Liffey (Dublin) – 17
River Han (Seoul) – 26

Public Transport
Dublin – Luas (2 lines), DART (1 line), Irish Rail Commuter (4 lines) Dublin Bus (172 routes), two major inter-city train stations, one bus station, over 16,000 taxis.
Seoul – Subway/Metro (14 lines) Seoul Bus (653 routes c. 2006) four main train stations, plus numerous smaller stations, six bus stations, over 23,000 taxis

Other Cities Named After:

Dublin – 15
Seoul – 0

UNESCO Honours:
Dublin – City of Literature
Seoul – City of Design, Jongmyo and Changdeokgung world heritage sites

Global Cities Ranking (2010):
Dublin – 44
Seoul – 10

Cities Twinned With:
Dublin – Barcelona, Spain; Liverpool, United Kingdom; San Jose, California, United States of America; Beijing, The People’s Republic of China
Seoul – Ankara, Turkey; Astana, Kazakhstan; Athens, Greece; Bangkok, Thailand; Beijing, China; Bogotá, Columbia; Cairo, Egypt; Guam, U.S.A.; Hanoi, Vietnam; Honolulu, U.S.A.; Islamabad, Pakistan; Bumiayu, Indonesia; Mumbai, India; Moscow, Russia; Paris, France; Rome, Italy; San Fracisco, U.S.A.; São Paulo, Brazil; Sydney, Australia; Taipei, Taiwan; Tokyo, Japan; Ulaanbator, Mongolia; Warsaw, Poland; Washington D.C., U.S.A.

Unfortunately, there is a lack of interesting statistics on drugs, alcohol, and other aspects which define a society available for Dublin or Seoul. These statistics appear to be only available on a national level.

For alcohol consumption rates of Korea and Ireland please follow this Wikipedia link where plenty of details available in the references section.

For drug usage reports and statistics from Ireland visit drugsandalcohol.ie for comprehensive analysis. There appear to be no reports or information available in English.