Portland-Worker Flows by Area Type: 1970-2000
| Type of flow | 2000 Flows | 1990 Flows | Difference |
| Central-Central | 262,646 | 231766 | 30,880 |
| Central-Ex-Urban | 2,236 | 1502 | 734 |
| Central-Suburban | 66,545 | 50563 | 15,982 |
| Ex-Urban-Central | 6,653 | 5258 | 1,395 |
| Ex-Urban-Ex-Urban | 157,934 | 126901 | 31,033 |
| Ex-Urban-Suburban | 19,613 | 10608 | 9,005 |
| Suburban-Central | 154,568 | 134653 | 19,915 |
| Suburban-Ex-Urban | 9,102 | 6047 | 3,055 |
| Suburban-Suburban | 402,156 | 275682 | 126,474 |
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