The Korean Peninsula is located in North east Asia.
The Korean peninsula is roughly 1,030 km (612 miles) long and 175 km (105 miles) wide at its narrowest point. Korea’s total land area is 100,033 sq km, and it has a population of 49.8 million people (2011).
Because of its unique geographical location, Korea is a very valuable piece of land and an international hub of Asia.
Seoul, Located in the western part of the central region of the Korean Peninsula and the capital city of the Republic of Korea, has been the center of the country throughout its long history from the prehistoric era to the present day.

More information for Seoul, http://english.visitseoul.net/

Status of Ansan City (As of Sep 2014)
– Population
Number of population: 763,716
Sangnok-gu: 390,876 / Danwon-gu: 372,840
5th out of 31 cities and guns in Gyeonggi-do

– Area
Area: 149.50㎢ (1.47% of Gyeonggi-do)
Sangnok-gu: 57.99㎢ / Danwon-gu: 91.51㎢

– Administrative District
Administrative district: 2 gus 25 dongs 1,228 tongs 6,002 bans
Sangnok-gu: 13 dongs 624 tongs 3,109 bans / Danwon-gu: 12 dongs 604 tongs 2,893 bans

– Fiscal Scale
Fiscal scale: 1,277.5 billion won (Revised supplementary budget in 2014)
General account: 957.5 billion won / Special account: 320 billion won

– School
Number of schools: 211
Kindergarten (96), elementary school (54), middle school (29), high school (24), college (3), university (2), graduate school (1) other (2)

– Business(As of Jun. 30, 2014)
Number of businesses: 10,364
Banwol Industrial Complex (7,111), Sihwa Industrial Complex (2,818), Banwol Plating Industrial Complex (106), other (329)

– Automobile
Number of automobiles: 275,289
– Passenger car (212,874), van (16,292), truck (45,475), special vehicle (694)

Referenced by http://www.iansan.net