Wednesday, May 26, 2010

Annexations Add to City Population

A city adds population when there are more births than deaths (a natural increase), when more people move in than move out (net in-migration), or both. A city can also add population by incorporating an outlying area into the city boundaries - a process known as annexation.

From 2000 to 2009, Oregon's incorporated cities added more than 17,300 people due to annexations, accounting for 4.6 percent of the 374,100 additional city dwellers. This figure is much smaller than the last decade. From 1990 to 2000, total city population grew by nearly 531,500; annexations contributed nearly 83,000 people (+15.6%) to the total growth.

The amount of annexation-related population growth varied by region of the state:

A few more notes on population: In 2009...
- There were 242 incorporated cities in Oregon
- The total population for Oregon's incorporated cities was 2,671,032 (which was 70% of the state's population)
- With 580,000 residents, Portland was Oregon's most populous city

The full article was written by... me! Economist Brooke Jackson (503-947-1263,

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