CA / county disease rankings
Counties with the highest brain cancer incidence rates in California
Among 44 California counties with published values, the counties with the highest brain cancer incidence rates are Calaveras County, CA (8.2, 1.32 times the U.S. rate of 6.2), Tehama County, CA (8.1, 1.31 times the U.S. rate of 6.2) and El Dorado County, CA (8, 1.29 times the U.S. rate of 6.2). Values are per 100,000, age-adjusted. 2 of the 44 are significantly above the U.S. rate.
Source: NCI and CDC State Cancer Profiles, both sexes, all ages. These are county-level figures, age-adjusted as published by the source, compared with the U.S. rate. A high rate does not prove an environmental cause: age, smoking, income, access to care, screening and chance all move county rates, and small counties swing widely. Significant means the lower bound of the county’s 95 percent confidence interval is above the U.S. rate.
All California counties, highest first
Brain & nervous system cancer new cases, per 100,000, age-adjusted.
| Rank | County | State | Value | U.S. rate | Times reference | Significant |
|---|---|---|---|---|---|---|
| 1 | Calaveras County | CA | 8.2 | 6.2 | 1.32x | No |
| 2 | Tehama County | CA | 8.1 | 6.2 | 1.31x | No |
| 3 | El Dorado County | CA | 8 | 6.2 | 1.29x | Significant |
| 4 | Sonoma County | CA | 7.7 | 6.2 | 1.24x | Significant |
| 5 | Butte County | CA | 7.6 | 6.2 | 1.23x | No |
| 6 | Nevada County | CA | 7.6 | 6.2 | 1.23x | No |
| 7 | Sutter County | CA | 7.4 | 6.2 | 1.19x | No |
| 8 | Imperial County | CA | 7.2 | 6.2 | 1.16x | No |
| 9 | Lake County | CA | 7.1 | 6.2 | 1.15x | No |
| 10 | Siskiyou County | CA | 7.1 | 6.2 | 1.15x | No |
| 11 | Marin County | CA | 6.9 | 6.2 | 1.11x | No |
| 12 | Shasta County | CA | 6.8 | 6.2 | 1.1x | No |
| 13 | San Luis Obispo County | CA | 6.7 | 6.2 | 1.08x | No |
| 14 | Napa County | CA | 6.6 | 6.2 | 1.06x | No |
| 15 | San Diego County | CA | 6.5 | 6.2 | 1.05x | No |
| 16 | Yolo County | CA | 6.4 | 6.2 | 1.03x | No |
| 17 | Kern County | CA | 6.3 | 6.2 | 1.02x | No |
| 18 | San Benito County | CA | 6.3 | 6.2 | 1.02x | No |
| 19 | Ventura County | CA | 6.3 | 6.2 | 1.02x | No |
| 20 | Yuba County | CA | 6.3 | 6.2 | 1.02x | No |
| 21 | Orange County | CA | 6.2 | 6.2 | 1x | No |
| 22 | Sacramento County | CA | 6.2 | 6.2 | 1x | No |
| 23 | Solano County | CA | 6.2 | 6.2 | 1x | No |
| 24 | Merced County | CA | 6.1 | 6.2 | 0.98x | No |
| 25 | Placer County | CA | 6.1 | 6.2 | 0.98x | No |
| 26 | San Francisco County | CA | 6.1 | 6.2 | 0.98x | No |
| 27 | Santa Barbara County | CA | 6.1 | 6.2 | 0.98x | No |
| 28 | Humboldt County | CA | 6 | 6.2 | 0.97x | No |
| 29 | Santa Cruz County | CA | 6 | 6.2 | 0.97x | No |
| 30 | Riverside County | CA | 5.9 | 6.2 | 0.95x | No |
| 31 | Contra Costa County | CA | 5.8 | 6.2 | 0.94x | No |
| 32 | Tulare County | CA | 5.8 | 6.2 | 0.94x | No |
| 33 | Madera County | CA | 5.6 | 6.2 | 0.9x | No |
| 34 | San Joaquin County | CA | 5.5 | 6.2 | 0.89x | No |
| 35 | Los Angeles County | CA | 5.4 | 6.2 | 0.87x | No |
| 36 | Fresno County | CA | 5.3 | 6.2 | 0.85x | No |
| 37 | San Bernardino County | CA | 5.3 | 6.2 | 0.85x | No |
| 38 | San Mateo County | CA | 5.3 | 6.2 | 0.85x | No |
| 39 | Kings County | CA | 5.2 | 6.2 | 0.84x | No |
| 40 | Stanislaus County | CA | 5.2 | 6.2 | 0.84x | No |
| 41 | Monterey County | CA | 5.1 | 6.2 | 0.82x | No |
| 42 | Alameda County | CA | 4.9 | 6.2 | 0.79x | No |
| 43 | Mendocino County | CA | 4.9 | 6.2 | 0.79x | No |
| 44 | Santa Clara County | CA | 4.9 | 6.2 | 0.79x | No |