Atlas of Urban Expansion

Population

The Population of Portland, OR in 2014 was 1,904,409, increasing at an average annual rate of 1.7% since 2000. The population of Portland, OR in 2000 was 1,512,404, increasing at an average annual rate of 2.9% since 1990, when its population was 1,131,570.

Urban Extent

The Urban Extent of Portland, OR in 2014 was 128,523 hectares, increasing at an average annual rate of 1.4% since 2000. The urban extent in 2000 was 105,838 hectares, increasing at an average annual rate of 2.3% since 1990, when its urban extent was 84,104 hectares.

• 1990
• 2000
• 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 Portland, OR in 2014 was 22 persons per hectare, decreasing at an average annual rate of -0.3% since 2000. The built-up area density in 2000 was 22 persons per hectare, decreasing at an average annual rate of -0.3% since 1990 when the built-up area density was 23.14 persons per hectare.

The Urban Extent Density in Portland, OR in 2014 was 15 persons per hectare, increasing at an average annual rate of 0.3% since 2000. The urban extent density in 2000 was 14 persons per hectare, increasing at an average annual rate of 0.6% since 1990 when the urban extent density was 13 persons per hectare.

Composition of Added Area

A total of 20,700 hectares of built-up area was added to the Portland, OR urban extent between 2000 and 2014. Of that added built-up area, 56% was Infill, 13% was Extension, 5% was Leapfrog, and 26% was Inclusion. A total of 18,764 hectares of built-up area was added to the urban extent between 1990 and 2000. Of that added built-up area, 50% was Infill, 32% was Extension, 1% was Leapfrog, and 17% was Inclusion.

• 1990–2000
• 2000–2014

• Built-up Area
  1990
• Infill
• Extension
• Leapfrog
• Inclusion

Roads

Average road width in the Portland, OR 1990-2014 expansion area was 9.98 meters, compared to 10.09 meters in its pre-1990 area.

The share of built-up area in Portland, OR occupied by roads in the 1990-2014 expansion area was 20%, compared to 23% in the pre-1990 area.

• Pre 1990
• 1990 – 2014

Arterial Roads

The density of arterial roads in Portland, OR's 1990-2014 expansion was 1.7 km/km2, compared to 1.96 km/km2 in its pre-1990 area.

The share of built-up area within walking distance of an arterial road in Portland, OR's 1990-2014 expansion area was 95%, compared to 96% in the pre-1990 area.

• 1990
• 2014

Blocks and Plots

Average block size in Portland, OR's 1990-2014 expansion area was 4.9 hectares, compared to 4.3 hectares in its pre-1990 area.

• Pre 1990
• 1990 – 2014