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Montana · 2,664 people served · 21 water systems
ZIP code 59801 is in Montana and is a small town from a drinking-water-service perspective, with 2,664 people served by 21 EPA-registered public water systems. It corresponds to MISSOULA.
Within ZIP code 59801, the EPA Safe Drinking Water Information System (SDWIS) records 24 health-based violations during the past five years across 21 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
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PETERS - PRISKE APARTMENTS MISSOULA
PWSID: MT0004933
33 served
BEE HIVE HOMES MSLA
PWSID: MT0004891
106 served
TRESTLE CREEK I AND II
PWSID: MT0004423
110 served
FOREST INN LOUNGE AND APARTMENTS
PWSID: MT0000840
130 served
HAMILTON MOBILE VILLAGE
PWSID: MT0001079
53 served
HOLLYWOOD HEIGHTS TRAILER PARK LLC
PWSID: MT0000454
220 served
OLD MILL PENINSULA HOA
PWSID: MT0004192
40 served
TWO RIVERS MOBILE HM PK LOLO
PWSID: MT0000489
138 served
BAIR CLARK PROPERTIES, LLC
PWSID: MT0000374
180 served
MAGNOLIA ESTATES
PWSID: MT0004021
140 served
SUNSET PINES
PWSID: MT0002538
55 served
RIVERWALK AND DINOS ESTATES
PWSID: MT0004506
115 served
TAMARACK COURT
PWSID: MT0000368
75 served
CIRCLE J TRAILER COURT
PWSID: MT0000452
59 served
OLD HELLGATE VILLAGE MSLA
PWSID: MT0002635
140 served
BRANCO COURT
PWSID: MT0004568
37 served
MOBILE CITY TRAILER COURT
PWSID: MT0000646
175 served
B & M ZOO SUBDIVISION
PWSID: MT0005006
25 served
HARVEYS MOBILE HOME PARK
PWSID: MT0000453
98 served
NORTH DAVIS DUPLEXES 421
PWSID: MT0002121
33 served
TRAVOIS VILLAGE MOBILE PARK
PWSID: MT0003909
702 served
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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