The Population of Cheonan in 2014 was 552,995, increasing at an average annual rate of 6.9% since 2000. The population of Cheonan in 2000 was 210,488, increasing at an average annual rate of 6.7% since 1991, when its population was 111,318.
The Urban Extent of Cheonan in 2014 was 17,051 hectares, increasing at an average annual rate of 8.6% since 2000. The urban extent in 2000 was 5,063 hectares, increasing at an average annual rate of 13% since 1991, when its urban extent was 1,467 hectares.
Built-up Area Density in Cheonan in 2014 was 61 persons per hectare, decreasing at an average annual rate of -1.2% since 2000. The built-up area density in 2000 was 73 persons per hectare, decreasing at an average annual rate of -5.4% since 1991 when the built-up area density was 121.52 persons per hectare.
The Urban Extent Density in Cheonan in 2014 was 32 persons per hectare, decreasing at an average annual rate of -1.8% since 2000. The urban extent density in 2000 was 42 persons per hectare, decreasing at an average annual rate of -6.3% since 1991 when the urban extent density was 76 persons per hectare.
A total of 6,137 hectares of built-up area was added to the Cheonan urban extent between 2000 and 2014. Of that added built-up area, 16% was Infill, 27% was Extension, 0% was Leapfrog, and 57% was Inclusion. A total of 1,983 hectares of built-up area was added to the urban extent between 1991 and 2000. Of that added built-up area, 13% was Infill, 58% was Extension, 0% was Leapfrog, and 29% was Inclusion.
Average road width in the Cheonan 1990-2014 expansion area was 6.74 meters, compared to 6.97 meters in its pre-1990 area.
The share of built-up area in Cheonan occupied by roads in the 1990-2014 expansion area was 26%, compared to 23% in the pre-1990 area.
The density of arterial roads in Cheonan's 1990-2014 expansion was 0.5 km/km2, compared to 3.29 km/km2 in its pre-1990 area.
The share of built-up area within walking distance of an arterial road in Cheonan's 1990-2014 expansion area was 82%, compared to 100% in the pre-1990 area.
Average block size in Cheonan's 1990-2014 expansion area was 4.4 hectares, compared to 1.7 hectares in its pre-1990 area.