Atlas of Urban Expansion

Population

The Population of San Salvador in 2014 was 1,693,748, increasing at an average annual rate of 1.9% since 1999. The population of San Salvador in 1999 was 1,293,520, increasing at an average annual rate of 0.5% since 1991, when its population was 1,242,224.

Urban Extent

The Urban Extent of San Salvador in 2014 was 23,859 hectares, increasing at an average annual rate of 3.2% since 1999. The urban extent in 1999 was 15,093 hectares, increasing at an average annual rate of 2.2% since 1991, when its urban extent was 12,529 hectares.

• 1991
• 1999
• 2014

•  
• Urban Extent
• Urban Built-up
• Suburban Built-up
• Rural Built-up
• Urbanized Open Space
•  
• Exurban Area
• Exurban Built-Up Area
• Exurban Open Space
•  
• Rural Open Space
• Rural Open Space

Density

Built-up Area Density in San Salvador in 2014 was 100 persons per hectare, decreasing at an average annual rate of -1.4% since 1999. The built-up area density in 1999 was 123 persons per hectare, decreasing at an average annual rate of -2.4% since 1991 when the built-up area density was 151.19 persons per hectare.

The Urban Extent Density in San Salvador in 2014 was 71 persons per hectare, decreasing at an average annual rate of -1.3% since 1999. The urban extent density in 1999 was 86 persons per hectare, decreasing at an average annual rate of -1.7% since 1991 when the urban extent density was 99 persons per hectare.

Composition of Added Area

A total of 6,387 hectares of built-up area was added to the San Salvador urban extent between 1999 and 2014. Of that added built-up area, 36% was Infill, 29% was Extension, 0% was Leapfrog, and 35% was Inclusion. A total of 2,284 hectares of built-up area was added to the urban extent between 1991 and 1999. Of that added built-up area, 47% was Infill, 39% was Extension, 0% was Leapfrog, and 14% was Inclusion.

• 1991–1999
• 1999–2014

• Built-up Area
  1991
• Infill
• Extension
• Leapfrog
• Inclusion

Roads

Average road width in the San Salvador 1990-2014 expansion area was 8.13 meters, compared to 10.38 meters in its pre-1990 area.

The share of built-up area in San Salvador occupied by roads in the 1990-2014 expansion area was 23%, compared to 25% in the pre-1990 area.

• Pre 1990
• 1990 – 2014

Arterial Roads

The density of arterial roads in San Salvador's 1990-2014 expansion was 2.02 km/km2, compared to 2.84 km/km2 in its pre-1990 area.

The share of built-up area within walking distance of an arterial road in San Salvador's 1990-2014 expansion area was 93%, compared to 96% in the pre-1990 area.

• 1991
• 2014

Blocks and Plots

Average block size in San Salvador's 1990-2014 expansion area was 4.8 hectares, compared to 2.1 hectares in its pre-1990 area.

• Pre 1990
• 1990 – 2014