Fluoride in Maryland Drinking Water — 10 ZIPs Tested
EPA data analysis for fluoride in Maryland drinking water systems
ZipCheckup tracks Fluoride in Maryland drinking water: 10 ZIP codes with detected levels on record. No ZIP codes exceed the EPA limit on record. Fluoride carries a moderate health-risk designation.
Fluoride Contamination in Maryland
ZipCheckup analyzed drinking water data across 615 ZIP codes in Maryland for fluoride contamination. 10 ZIP codes have reported fluoride detections, and 0 have EPA violations on record.
EPA Standard for Fluoride
The EPA maximum contaminant level (MCL) for fluoride is 4.0 mg/L (MCL) / 2.0 mg/L (SMCL), governed by the National Primary Drinking Water Regulations. Water systems that exceed this limit must take corrective action and notify consumers.
Worst ZIP Codes for Fluoride in Maryland
These ZIP codes reported the highest fluoride levels in Maryland based on CCR reports and EPA data:
Lowest Fluoride Levels in Maryland
These ZIP codes had the lowest reported fluoride detections in Maryland:
Health Effects of Fluoride
At levels above the EPA MCL of 4 mg/L, fluoride can cause skeletal fluorosis (bone pain, joint stiffness). The secondary standard of 2 mg/L is set to prevent dental fluorosis in children. At levels used in water fluoridation (0.7 mg/L), fluoride helps prevent tooth decay.
How to Remove Fluoride From Drinking Water
The most effective treatment for fluoride removal is Reverse Osmosis or Activated Alumina. Look for filters certified under NSF 58 standards.
Check Your ZIP Code
Use the ZipCheckup water quality search to see fluoride data for your specific water system in Maryland.
Worst ZIP Codes for Fluoride in Maryland
Ranked by highest fluoride detection level.
| Rank | ZIP Code | City | Level Detected | EPA Limit | Status |
|---|---|---|---|---|---|
| 1 | 21814 | Bivalve | 3900 ppb | 4000 ppb | Within Limit |
| 2 | 21821 | Deal Island | 3900 ppb | 4000 ppb | Within Limit |
| 3 | 21836 | Manokin | 3900 ppb | 4000 ppb | Within Limit |
| 4 | 21840 | Nanticoke | 3900 ppb | 4000 ppb | Within Limit |
| 5 | 21853 | Princess Anne | 3900 ppb | 4000 ppb | Within Limit |
| 6 | 21865 | Tyaskin | 3900 ppb | 4000 ppb | Within Limit |
| 7 | 21867 | Upper Fairmount | 3900 ppb | 4000 ppb | Within Limit |
| 8 | 21871 | Westover | 3100 ppb | 4000 ppb | Within Limit |
| 9 | 21601 | Easton | 2300 ppb | 4000 ppb | Within Limit |
| 10 | 21606 | Easton | 2300 ppb | 4000 ppb | Within Limit |
Lowest Fluoride Levels in Maryland
Cities with Fluoride Data in Maryland
2 cities in Maryland have fluoride testing data available.