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ZIP Code 21904 Water Quality
Maryland · 1,217 people served · 8 water systems
B
GoodZIP code 21904 is in Maryland and is a rural community from a drinking-water-service perspective, with 1,217 people served by 8 EPA-registered public water systems. It corresponds to PORT DEPOSIT.
Within ZIP code 21904, the EPA Safe Drinking Water Information System (SDWIS) records 1 health-based violation during the past five years across 8 water systems serving this postal area. The grade of B reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
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Cities in ZIP 21904
Water Systems Serving 21904
BENJAMINS VILLAGE/HOMESTEAD M.H.P.
PWSID: MD0070209
400 served
WOODLAWN MOBILE HOME PARK - OLD
PWSID: MD0070241
50 served
MAPLE HILL MOBILE ESTATES
PWSID: MD0070223
180 served
OAK LANE MOBILE HOME PARK
PWSID: MD0070226
55 served
WOODLAWN MOBILE HOME PARK - NEW
PWSID: MD0070239
134 served
FOREST GREEN COURT MOBILE HOME PARK
PWSID: MD0070217
212 served
TOWN OF HENDERSON
PWSID: MD0050008
156 served
JUBILEE MHP
PWSID: PA7360108
30 served
About ZIP-code water data
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
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