Summarized table:
2000 Population for Census tracts, Census County Divisions, Census Designated Places
| Geography |
Population 2000 |
| Humboldt County |
126,518 |
| Census Tracts |
| Census Tract 1 |
4,267 |
| Census Tract 2 |
6,027 |
| Census Tract 3 |
5,334 |
| Census Tract 4 |
3,801 |
| Census Tract 5 |
4,108 |
| Census Tract 6 |
4,813 |
| Census Tract 7 |
5,048 |
| Census Tract 8 |
4,541 |
| Census Tract 9 |
4,964 |
| Census Tract 10 |
5,348 |
| Census Tract 11 |
7,617 |
| Census Tract 12 |
4,678 |
| Census Tract 101.01 |
2,633 |
| Census Tract 101.02 |
2,804 |
| Census Tract 102 |
2,825 |
| Census Tract 103 |
3,608 |
| Census Tract 104 |
3,488 |
| Census Tract 105.01 |
5,588 |
| Census Tract 105.02 |
4,906 |
| Census Tract 106 |
1,933 |
| Census Tract 107 |
6,575 |
| Census Tract 108 |
4,697 |
| Census Tract 109 |
7,701 |
| Census Tract 110 |
3,814 |
| Census Tract 111 |
4,759 |
| Census Tract 112 |
3,206 |
| Census Tract 113 |
7,435 |
| Census County Divisions (CCD) |
| Arcata CCD |
22,607 |
| Eureka CCD |
46,447 |
| Ferndale CCD |
3,206 |
| Fortuna CCD |
16,212 |
| Garberville CCD |
12,194 |
| North Coastal CCD |
20,415 |
| Trinity–Klamath CCD |
5,437 |
| Census Designated Places (CDP) |
| Arcata city (part) |
16,651 |
| Arcata city (part) |
0 |
| Bayview CDP |
2,359 |
| Blue Lake city (part) |
0 |
| Blue Lake city (part) |
1,135 |
| Cutten CDP |
2,933 |
| Eureka city (part) |
2 |
| Eureka city (part) |
26,126 |
| Ferndale city |
1,382 |
| Fortuna city |
10,497 |
| Humboldt Hill CDP |
3,246 |
| Hydesville CDP |
1,209 |
| McKinleyville CDP |
13,599 |
| Myrtletown CDP |
4,459 |
| Pine Hills CDP |
3,108 |
| Redway CDP |
1,188 |
| Rio Dell city |
3,174 |
| Trinidad city |
311 |
| Westhaven–Moonstone CDP |
1,044 |
| Willow Creek CDP |
1,743 |
| Remainder of Arcata CCD |
5,954 |
| Remainder of Eureka CCD |
4,216 |
| Remainder of Ferndale CCD |
1,824 |
| Remainder of Fortuna CCD |
4,506 |
| Remainder of Garberville CCD |
7,832 |
| Remainder of North Coastal CCD |
4,326 |
| Remainder of Trinity–Klamath CCD |
3,694 |
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