California ZIP Code Water Quality
33 ZIP codes with water quality data · State average grade: B
ZIP Codes
33
Avg Grade
B
A or B
24%
D or F
48%
Grade Distribution
How California ZIP codes scored
A
2
6%
Excellent
B
6
18%
Good
C
9
27%
Fair
D
6
18%
Poor
F
10
30%
Failing
All ZIP Codes
All 33 ZIP codes in California
| ZIP Code | Primary City | Grade | Score | Score | Cities |
|---|---|---|---|---|---|
| 91906 | Campo | D | 48.1 | 1 | |
| 92019 | El Cajon | B+ | 83.8 | 1 | |
| 92059 | Pala | C- | 55.5 | 1 | |
| 92061 | Pauma Valley | F | 43 | 1 | |
| 92070 | Santa Ysabel | D | 48 | 1 | |
| 92082 | Valley Center | F | 35 | 1 | |
| 92201 | Indio | F | 44.8 | 1 | |
| 92202 | Indio | F | 44.8 | 1 | |
| 92203 | Indio | F | 44.8 | 1 | |
| 92220 | Banning | B- | 74.5 | 1 | |
| 92236 | Coachella | C- | 55.2 | 1 | |
| 92274 | Thermal | D | 48 | 1 | |
| 92363 | Needles | F | 43.2 | 2 | |
| 92539 | Anza | F | 43 | 1 | |
| 92581 | San Jacinto | B | 76.2 | 1 | |
| 92593 | Temecula | C+ | 65.3 | 1 | |
| 93257 | Porterville | F | 35.5 | 1 | |
| 95403 | Santa Rosa | F | 43.1 | 1 | |
| 95453 | Lakeport | C- | 57.5 | 1 | |
| 95461 | Middletown | D+ | 53.5 | 1 | |
| 95468 | Point Arena | D | 48.2 | 1 | |
| 95470 | Redwood Valley | C | 64.1 | 1 | |
| 95470-0039 | Redwood Valley | C | 64.1 | 1 | |
| 95485 | Upper Lake | B | 79 | 1 | |
| 95490 | Willits | C- | 56.6 | 1 | |
| 95492 | Windsor | A+ | 97.2 | 1 | |
| 95548 | Klamath | D | 48 | 1 | |
| 95551 | Loleta | B- | 73.9 | 1 | |
| 95606 | Brooks | B+ | 82.2 | 1 | |
| 95932-4018 | Colusa | C- | 59 | 1 | |
| 96001 | Redding | F | 34.8 | 1 | |
| 96006 | Whittier | C+ | 69.8 | 1 | |
| 96032 | Fort Jones | A | 91.4 | 1 |