| 1 | Eugene city (west-northwest 1) | 7,209 |
| 2 | Eugene city (north-northwest 1) | 6,439 |
| 3 | Eugene city (east-northeast 3) | 6,218 |
| 4 | Eugene city (east-southeast 1) | 6,117 |
| 5 | Springfield city (southeast 2) | 6,105 |
| 6 | Creswell city (north) | 6,024 |
| 7 | Veneta city (east-northeast) | 6,008 |
| 8 | Eugene city (south 1) | 5,861 |
| 9 | Eugene city (northwest 2) | 5,768 |
| 10 | Springfield city (south-southeast) | 5,768 |
| 11 | Eugene city (east-southeast 3) | 5,764 |
| 12 | Junction City city (north-northwest) | 5,726 |
| 13 | Eugene city (east-southeast 2) | 5,626 |
| 14 | Cottage Grove city (south) | 5,474 |
| 15 | Eugene city (south-southeast 2) | 5,395 |
| 16 | Springfield city (southeast 1) | 5,390 |
| 17 | Jasper CDP | 5,362 |
| 18 | Eugene city (southwest 1) | 5,217 |
| 19 | Dexter CDP | 5,206 |
| 20 | Marcola CDP | 5,169 |
| 21 | Springfield city (northwest 1) | 5,144 |
| 22 | River Road CDP (northeast) | 5,003 |
| 23 | Eugene city (south-southeast 1) | 4,956 |
| 24 | Oakridge city | 4,878 |
| 25 | Unincorporated (east) | 4,838 |
| 26 | Springfield city (west-southwest) | 4,729 |
| 27 | Eugene city (southeast 1) | 4,705 |
| 28 | Eugene city (east-northeast 4) | 4,700 |
| 29 | Eugene city (southwest 2) | 4,692 |
| 30 | Eugene city (north-northeast 1) | 4,672 |
| 31 | Eugene city (northeast 2) | 4,536 |
| 32 | Springfield city (south) | 4,509 |
| 33 | Elmira CDP | 4,495 |
| 34 | Eugene city (northwest 4) | 4,493 |
| 35 | Junction City city (south-southeast) | 4,409 |
| 36 | Eugene city (east-northeast 1) | 4,360 |
| 37 | River Road CDP (northwest) | 4,356 |
| 38 | Eugene city (west-southwest 1) | 4,350 |
| 39 | Springfield city (west 1) | 4,335 |
| 40 | Florence city (southwest 1) | 4,322 |
| 41 | Santa Clara CDP (east-northeast) | 4,316 |
| 42 | Springfield city (east-southeast 1) | 4,312 |
| 43 | Eugene city (east-southeast 4) | 4,308 |
| 44 | Cottage Grove city (west-northwest) | 4,267 |
| 45 | River Road CDP (south) | 4,264 |
| 46 | Springfield city (east) | 4,246 |
| 47 | Cottage Grove city (north) | 4,240 |
| 48 | Springfield city (northwest 2) | 4,173 |
| 49 | Santa Clara CDP (northwest) | 4,170 |
| 50 | Florence city (southwest 2) | 4,131 |
| 51 | Eugene city (north-northeast 2) | 4,075 |
| 52 | Santa Clara CDP (west) | 3,974 |
| 53 | Eugene city (south-southeast 3) | 3,938 |
| 54 | Santa Clara CDP (southeast) | 3,881 |
| 55 | Cheshire CDP | 3,864 |
| 56 | Eugene city (southeast 2) | 3,835 |
| 57 | Eugene city (west) | 3,712 |
| 58 | Springfield city (west 2) | 3,676 |
| 59 | Creswell city (south) | 3,673 |
| 60 | Eugene city (northwest 3) | 3,659 |
| 61 | Cottage Grove city (east-southeast) | 3,568 |
| 62 | Santa Clara CDP (south) | 3,544 |
| 63 | Eugene city (south-southeast 5) | 3,468 |
| 64 | Eugene city (east-northeast 5) | 3,460 |
| 65 | Eugene city (north-northwest 2) | 3,438 |
| 66 | Springfield city (north-northeast) | 3,410 |
| 67 | Eugene city (south-southeast 4) | 3,366 |
| 68 | Eugene city (southwest 3) | 3,319 |
| 69 | Springfield city (west-northwest 2) | 3,283 |
| 70 | Heceta Beach CDP | 3,281 |
| 71 | Eugene city (southeast 3) | 3,190 |
| 72 | Veneta city (west-southwest) | 3,147 |
| 73 | Eugene city (west-southwest 2) | 3,138 |
| 74 | Springfield city (west-northwest 1) | 3,121 |
| 75 | Springfield city (north-northwest) | 3,080 |
| 76 | Eugene city (west-northwest 2) | 3,057 |
| 77 | Eugene city (east) | 3,016 |
| 78 | Eugene city (northeast 1) | 2,895 |
| 79 | Eugene city (northwest 1) | 2,871 |
| 80 | Eugene city (south 2) | 2,749 |
| 81 | Eugene city (east-northeast 2) | 2,743 |
| 82 | Eugene city (south-southwest) | 2,701 |
| 83 | Springfield city (east-southeast 2) | 2,693 |
| 84 | Unincorporated (south-southeast) | 2,651 |
| 85 | Coburg city | 2,549 |
| 86 | Dunes City city | 2,543 |
| 87 | Eugene city (south-southeast 6) | 2,437 |
| 88 | Springfield city (west-northwest 3) | 2,411 |
| 89 | Eugene city (south 3) | 2,393 |
| 90 | Florence city (northeast) | 2,253 |
| 91 | Mapleton CDP | 2,148 |
| 92 | Unincorporated (west) | 1,663 |