Maryland — 8th District
119th Congress · 53 ZIP codes · Avg score 52/100 · Grade D · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 53 ZIP codes in Maryland's 8th District: the district earns a grade D (52/100). No EPA drinking-water violations are on record for the tracked systems.
ZIP Codes in This District
53 ZIP codes tracked in Maryland's 8th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 20810 | Bethesda | 66 | C | 0 |
| 2 | 20811 | Bethesda | 66 | C | 0 |
| 3 | 20824 | Bethesda | 66 | C | 0 |
| 4 | 20892 | Bethesda | 66 | C | 0 |
| 5 | 20814 | Bethesda | 65 | C | 0 |
| 6 | 20816 | Bethesda | 65 | C | 0 |
| 7 | 20903 | Silver Spring | 62 | C | 0 |
| 8 | 20905 | Silver Spring | 62 | C | 0 |
| 9 | 20817 | Bethesda | 60 | C | 0 |
| 10 | 20901 | Silver Spring | 57 | C | 0 |
| 11 | 20904 | Silver Spring | 57 | C | 0 |
| 12 | 20910 | Silver Spring | 57 | C | 0 |
| 13 | 20907 | Silver Spring | 55 | C | 0 |
| 14 | 20908 | Silver Spring | 55 | C | 0 |
| 15 | 20911 | Silver Spring | 55 | C | 0 |
| 16 | 20914 | Silver Spring | 55 | C | 0 |
| 17 | 20915 | Silver Spring | 55 | C | 0 |
| 18 | 20916 | Silver Spring | 55 | C | 0 |
| 19 | 20918 | Silver Spring | 55 | C | 0 |
| 20 | 20993 | Silver Spring | 55 | C | 0 |
| 21 | 20997 | Silver Spring | 55 | C | 0 |
| 22 | 20812 | Glen Echo | 53 | D | 0 |
| 23 | 20832 | Olney | 53 | D | 0 |
| 24 | 20833 | Brookeville | 53 | D | 0 |
| 25 | 20850 | Rockville | 53 | D | 0 |
| 26 | 20851 | Rockville | 53 | D | 0 |
| 27 | 20855 | Derwood | 53 | D | 0 |
| 28 | 20860 | Sandy Spring | 53 | D | 0 |
| 29 | 20861 | Ashton | 53 | D | 0 |
| 30 | 20879 | Gaithersburg | 53 | D | 0 |
| 31 | 20882 | Gaithersburg | 53 | D | 0 |
| 32 | 20886 | Montgomery Village | 53 | D | 0 |
| 33 | 20896 | Garrett Park | 53 | D | 0 |
| 34 | 20912 | Takoma Park | 53 | D | 0 |
| 35 | 20902 | Silver Spring | 52 | D | 0 |
| 36 | 20906 | Silver Spring | 52 | D | 0 |
| 37 | 20815 | Chevy Chase | 45 | D | 0 |
| 38 | 20818 | Cabin John | 45 | D | 0 |
| 39 | 20852 | Rockville | 45 | D | 0 |
| 40 | 20853 | Rockville | 45 | D | 0 |
| 41 | 20878 | Gaithersburg | 45 | D | 0 |
| 42 | 20895 | Kensington | 45 | D | 0 |
| 43 | 20825 | Chevy Chase | 40 | D | 0 |
| 44 | 20830 | Olney | 40 | D | 0 |
| 45 | 20847 | Rockville | 40 | D | 0 |
| 46 | 20849 | Rockville | 40 | D | 0 |
| 47 | 20857 | Rockville | 40 | D | 0 |
| 48 | 20862 | Brinklow | 40 | D | 0 |
| 49 | 20880 | Washington Grove | 40 | D | 0 |
| 50 | 20883 | Gaithersburg | 40 | D | 0 |
Overview
Maryland's 8th District encompasses 53 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is D (52/100).
No EPA violations recorded across tracked ZIP codes in this district.
Housing Context
Homes in this district were built on average around 1972 (~54 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 1 ZIP code in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 53 ZIP codes in Maryland's 8th District.