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County | Total | Number
| Number of | Persons
| Motor | Per Auto
| Vehicles |
-----------+-----------+---------
Baker | 1,409 | 12.8
Benton | 1,080 | 9.9
Clackamas | 2,299 | 13.0
Clatsop | 1,409 | 11.4
Columbia | 632 | 16.8
Coos | 1,128 | 15.9
Crook | 533 | 5.6
Curry | 135 | 15.1
Deschutes | 829 | 5.6
Douglas | 1,428 | 13.8
Gilliam | 520 | 7.1
Grant | 436 | 12.9
Harney | 488 | 8.3
Hood River | 682 | 11.8
Jackson | 2,431 | 10.6
Jefferson | 305 | 5.6
Josephine | 743 | 12.9
Klamath | 1,151 | 7.4
Lake | 463 | 10.0
Lane | 2,618 | 12.9
Lincoln | 170 | 34.6
Linn | 2,184 | 10.4
Malheur | 1,138 | 7.6
Marion | 3,982 | 10.0
Morrow | 670 | 6.5
Multnomah | 20,456 | 11.1
Polk | 1,298 | 10.4
Sherman | 737 | 5.8
Tillamook | 843 | 7.4
Umatilla | 3,231 | 6.3
Union | 1,609 | 10.1
Wallowa | 811 | 10.3
Wasco | 1,324 | 12.3
Washington | 2,041 | 10.5
Wheeler | 243 | 10.2
Yamhill | 1,862 | 9.3
-----------+-----------+--------
Total | 63,318 | 10.6
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