There are 34 cities in Multnomah County, Oregon.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Portland | 1 | 622,882 | 653,344 | -1.21% | 4,666 | 133.5 | City |
| Gresham | 2 | 109,423 | 114,470 | -1.14% | 4,653 | 23.5 | City |
| Hillsboro | 3 | 107,976 | 106,990 | 0.23% | 4,178 | 25.8 | City |
| Beaverton | 4 | 96,756 | 97,510 | -0.19% | 4,926 | 19.6 | City |
| Lake Oswego | 5 | 39,622 | 40,828 | -0.76% | 3,659 | 10.8 | City |
| Bethany | 6 | 32,706 | 28,047 | 2.71% | 6,010 | 5.4 | CDP |
| Tualatin | 7 | 27,216 | 27,884 | -0.61% | 3,241 | 8.4 | City |
| West Linn | 8 | 26,377 | 27,384 | -0.95% | 3,550 | 7.4 | City |
| Milwaukie | 9 | 21,742 | 21,149 | 0.69% | 4,362 | 5.0 | City |
| Cedar Mill | 10 | 19,918 | 18,661 | 1.96% | 5,983 | 3.3 | CDP |
| Oak Grove | 11 | 17,686 | 17,781 | 0.43% | 4,531 | 3.9 | CDP |
| Cornelius | 12 | 15,710 | 12,792 | 4.87% | 6,717 | 2.3 | City |
| Troutdale | 13 | 15,521 | 16,303 | -1.25% | 2,610 | 5.9 | City |
| Sandy | 14 | 13,040 | 12,663 | 0.73% | 3,592 | 3.6 | City |
| Oatfield | 15 | 13,016 | 13,588 | -0.21% | 3,834 | 3.4 | CDP |
| Oak Hills | 16 | 11,854 | 11,682 | 0.31% | 7,623 | 1.6 | CDP |
| Fairview | 17 | 10,912 | 10,392 | 1.21% | 3,533 | 3.1 | City |
| Rockcreek | 18 | 10,024 | 9,698 | 0.5% | 5,099 | 2.0 | CDP |
| Cedar Hills | 19 | 9,205 | 9,514 | 0.7% | 4,883 | 1.9 | CDP |
| West Haven-Sylvan | 20 | 8,438 | 8,505 | 0.37% | 3,762 | 2.2 | CDP |
| Scappoose | 21 | 8,339 | 8,019 | 0.97% | 2,427 | 3.4 | City |
| Raleigh Hills | 22 | 6,877 | 6,675 | 1.03% | 4,521 | 1.5 | CDP |
| West Slope | 23 | 6,681 | 6,799 | 0.14% | 4,134 | 1.6 | CDP |
| Marlene Village | 24 | 6,167 | 5,356 | 7.7% | 6,747 | 0.9 | CDP |
| Wood Village | 25 | 4,827 | 4,387 | 2.33% | 5,124 | 0.9 | City |
| North Plains | 26 | 3,356 | 3,443 | -0.65% | 3,079 | 1.1 | City |
| Boring | 27 | 2,318 | 1,977 | 7.66% | 538 | 4.3 | CDP |
| Dunthorpe | 28 | 2,062 | 1,690 | 7.73% | 1,960 | 1.1 | CDP |
| Warren | 29 | 1,578 | 1,876 | -0.94% | 250 | 6.3 | CDP |
| Stafford | 30 | 1,565 | 1,940 | -0.06% | 250 | 6.3 | CDP |
| Cascade Locks | 31 | 1,353 | 1,377 | -0.44% | 649 | 2.1 | City |
| Maywood Park | 32 | 791 | 830 | -1.25% | 4,599 | 0.2 | City |
| Orient | 33 | 593 | 774 | 7.82% | 626 | 0.9 | CDP |
| Rivergrove | 34 | 530 | 542 | -0.56% | 3,064 | 0.2 | City |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Portland is the largest city in Multnomah County.
Rivergrove is the smallest city in Multnomah County.
There are 34 cities in Multnomah County, Oregon.