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ZIP Code 59903 Water Quality
Maine · 28,002 people served · 18 water systems
D
PoorZIP code 59903 is in Maine and is a small city from a drinking-water-service perspective, with 28,002 people served by 18 EPA-registered public water systems. It corresponds to KALISPELL.
Within ZIP code 59903, the EPA Safe Drinking Water Information System (SDWIS) records 10 health-based violations during the past five years across 18 water systems serving this postal area. The grade of D 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 59903
Water Systems Serving 59903
EAST VASSALBORO WATER COMPANY LLC
PWSID: ME0090500
205 served
FOSTERS COUNTRY VIEW TR PK LLC
PWSID: MT0000429
50 served
SKY VIEW ESTATES
PWSID: MT0004743
60 served
FOREST RIVER MOBILE HOME AND RV PARK
PWSID: MT0004809
90 served
ROCKY MOUNTAIN HI RV PARK
PWSID: MT0002812
275 served
PHEASANT HAVEN ESTATES
PWSID: MT0004545
53 served
GREENACRES COUNTY WATER AND SEWER DIST
PWSID: MT0001923
450 served
AP KOOKOOSINT
PWSID: MT0004929
40 served
AP WILLIAMS
PWSID: MT0001671
280 served
MEADOW MANOR
PWSID: MT0004397
410 served
COTTONWOOD HOMES
PWSID: MT0004626
45 served
WETTINGTON WATER DISTRICT INC
PWSID: MT0004083
119 served
COUNTRY ESTATES WATER SUPPLY
PWSID: MT0002846
490 served
HILLTOP TERRACE SUBDIVISION
PWSID: MT0001922
230 served
ASHLEY TRAILS
PWSID: MT0004945
27 served
KALISPELL PUBLIC WORKS
PWSID: MT0000259
25,000 served
SUNRISE TERRACE NO 1 HOA
PWSID: MT0000077
85 served
AP COUNTRYSIDE ESTATES
PWSID: MT0006000
93 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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