Fluoride in Saint Petersburg, FL Drinking Water
Fluoride data for Saint Petersburg, Florida · 357,666 residents · 31 ZIP codes
For residents of Saint Petersburg, Florida, Fluoride has appeared in public water supply sampling data.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
Fluoride in Saint Petersburg Tap Water
Fluoride has been detected in Saint Petersburg, Florida drinking water at a maximum level of 0.66 ppb — below the EPA MCL of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL).
This analysis covers 357,666 residents across 31 ZIP codes in Saint Petersburg.
Saint Petersburg's overall water quality grade is D (50/100).
Is Fluoride in Saint Petersburg 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 |
|---|---|---|---|
| 33702 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33706 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33708 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33716 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33729 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33731 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33732 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33734 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33736 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33737 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33738 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33740 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33741 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33742 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33743 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33747 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 33784 | 0.66 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
Average fluoride level across Saint Petersburg: 0.66 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 Saint Petersburg 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.