Fluoride in Tucson, AZ Drinking Water
Fluoride data for Tucson, Arizona · 916,333 residents · 54 ZIP codes
Federal water monitoring extends to thousands of public water systems, and in Tucson, Arizona, that tracking has turned up Fluoride — the detection is logged in the EPA compliance record and reflects samples collected under routine Safe Drinking Water Act reporting requirements.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
Fluoride in Tucson Tap Water
Fluoride has been detected in Tucson, Arizona drinking water at a maximum level of 44 ppb — below the EPA MCL of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL).
This analysis covers 916,333 residents across 54 ZIP codes in Tucson.
Tucson's overall water quality grade is D (53/100).
Is Fluoride in Tucson Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or activated alumina filter certified under NSF 58 and testing your water independently.
Fluoride Levels by ZIP Code
| ZIP Code | Fluoride Level | EPA Limit | Status |
|---|---|---|---|
| 85701 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85702 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85703 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85704 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85705 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85706 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85707 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85708 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85709 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85710 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85711 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85712 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85713 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85714 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85715 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85716 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85717 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85718 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85719 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85720 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85721 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85722 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85723 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85724 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 85725 | 44 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| ...29 more ZIP codes |
Average fluoride level across Tucson: 44 ppb
Health Effects of Fluoride
- Skeletal fluorosis at levels above 4 mg/L (bone pain, joint stiffness)
- Dental fluorosis in children at levels above 2 mg/L
- At 0.7 mg/L (water fluoridation level), helps prevent tooth decay
- Possible thyroid effects at high chronic exposure
Health risk severity: Moderate. Governed by the National Primary Drinking Water Regulations.
How Fluoride Gets Into Drinking Water
- Intentional water fluoridation (0.7 mg/L target, beneficial)
- Natural deposits in certain rock formations
- Industrial discharge (aluminum, fertilizer production)
- Naturally elevated in some groundwater (especially arid regions)
What to Do About Fluoride in Tucson Water
- Reverse osmosis removes 90%+ of fluoride
- Activated alumina filters are effective for fluoride
- Bone char carbon can reduce fluoride
- Standard activated carbon filters do NOT remove fluoride
Look for filters certified under NSF 58 for fluoride removal.