The Population of Istanbul in 2013 was 13,974,428, increasing at an average annual rate of 1.2% since 2002. The population of Istanbul in 2002 was 12,202,504, increasing at an average annual rate of 3% since 1990, when its population was 8,662,185.
The Urban Extent of Istanbul in 2013 was 131,606 hectares, increasing at an average annual rate of 3.7% since 2002. The urban extent in 2002 was 87,126 hectares, increasing at an average annual rate of 5.3% since 1990, when its urban extent was 46,928 hectares.
Built-up Area Density in Istanbul in 2013 was 136 persons per hectare, decreasing at an average annual rate of -4% since 2002. The built-up area density in 2002 was 211 persons per hectare, decreasing at an average annual rate of -3.2% since 1990 when the built-up area density was 305.31 persons per hectare.
The Urban Extent Density in Istanbul in 2013 was 106 persons per hectare, decreasing at an average annual rate of -2.5% since 2002. The urban extent density in 2002 was 140 persons per hectare, decreasing at an average annual rate of -2.4% since 1990 when the urban extent density was 185 persons per hectare.
A total of 44,855 hectares of built-up area was added to the Istanbul urban extent between 2002 and 2013. Of that added built-up area, 46% was Infill, 17% was Extension, 28% was Leapfrog, and 9% was Inclusion. A total of 29,409 hectares of built-up area was added to the urban extent between 1990 and 2002. Of that added built-up area, 26% was Infill, 61% was Extension, 0% was Leapfrog, and 13% was Inclusion.
Average road width in the Istanbul 1990-2014 expansion area was 7.83 meters, compared to 9.23 meters in its pre-1990 area.
The share of built-up area in Istanbul occupied by roads in the 1990-2014 expansion area was 28%, compared to 27% in the pre-1990 area.
The density of arterial roads in Istanbul's 1990-2014 expansion was 2.25 km/km2, compared to 3.3 km/km2 in its pre-1990 area.
The share of built-up area within walking distance of an arterial road in Istanbul's 1990-2014 expansion area was 94%, compared to 99% in the pre-1990 area.
Average block size in Istanbul's 1990-2014 expansion area was 4.3 hectares, compared to 2 hectares in its pre-1990 area.