The 2000 Census showed that Clackamas County had a population of 338,391 people. This represented 9.89% of the total population of Oregon, making it the state's 3rd most populous county (out of 36 counties).
From the Census Estimates for 2009<1>, Clackamas had a population of 386,143 people. This is an increase of 14.11% since the 2000 Census.
The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.
Year | Population | Change Since 2000 | Year-to-Year Change |
2010 | 375,992 | +11.11% | -2.63% since 2009 |
2009 | 386,143 | +14.11% | +1.29% since 2008 |
2008 | 381,229 | +12.66% | +1.5% since 2007 |
2007 | 375,610 | +11% | +1.27% since 2006 |
2006 | 370,897 | +9.61% | +1.5% since 2005 |
2005 | 365,411 | +7.98% | +1.3% since 2004 |
2004 | 360,709 | +6.6% | +1.4% since 2003 |
2003 | 355,730 | +5.12% | +1.16% since 2002 |
2002 | 351,647 | +3.92% | +1.97% since 2001 |
2001 | 344,842 | +1.91% | +1.91% since 2000 |
--- | | | 2000 | 338,391 | The Last Census |
Clackamas County had 136,954 Housing Units<2> at the time of the 2000 Census.
The 2000 Census shows that Clackamas County has a total area<3> of 1,879 square miles [4,866 km²]. Of this total, only a minor amount of that area is covered by water (10.83 square miles [28.06 km²]).
Using the above population and land area values, Clackamas County had a population density of 181.1 people per square mile [69.9 people/km²], making it the state's 4th most densely populated county (out of 36 counties).
US Census QuickFacts
The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Clackamas County is available. The QuickFact also contains a comparison between Clackamas and the state of Oregon. Click here for the Clackamas County QuickFact (QF-41005).
Below are some of the communities that are located in Clackamas County:
Community | Census QuickFact | Population (2009 Est) | Population (2000 Census) | Change in Population |
Portland | QF-4159000 | 566,143 | 529,121 | 7% |
Lake Oswego | QF-4140550 | 37,527 | 35,278 | 6.38% |
Oregon City | QF-4155200 | 31,798 | 25,754 | 23.47% |
Tualatin | QF-4174950 | 26,745 | 22,791 | 17.35% |
West Linn | QF-4180150 | 25,533 | 22,261 | 14.7% |
Milwaukie | QF-4148650 | 20,841 | 20,490 | 1.71% |
Wilsonville | QF-4182800 | 19,327 | 13,991 | 38.14% |
Canby | QF-4110750 | 15,765 | 12,790 | 23.26% |
Gladstone | QF-4129000 | 12,203 | 11,438 | 6.69% |
Sandy | QF-4165250 | 9,068 | 5,385 | 68.39% |
Molalla | QF-4149450 | 7,590 | 5,647 | 34.41% |
Below are the counties that adjoin and form the boundaries of Clackamas County. A link to their specific Census QuickFact has been provided.
County | Census QuickFact | Direction | Population (2009 Est.) | Population (2000 Census) | Change in Population |
Hood River | QF-41027 | NE | 21,883 | 20,411 | 7.21% |
Marion | QF-41047 | SW | 317,981 | 284,834 | 11.64% |
Multnomah | QF-41051 | NW | 726,855 | 660,486 | 10.05% |
Wasco | QF-41065 | E | 24,149 | 23,791 | 1.5% |
Washington | QF-41067 | NW | 537,318 | 445,342 | 20.65% |
Yamhill | QF-41071 | W | 99,037 | 84,992 | 16.53% |
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