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ZIP Code 59870 Water Quality
Montana · 2,533 people served · 7 water systems
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ExcellentZIP code 59870 is in Montana and is a small town from a drinking-water-service perspective, with 2,533 people served by 7 EPA-registered public water systems. It corresponds to STEVENSVILLE.
Within ZIP code 59870, the EPA Safe Drinking Water Information System (SDWIS) records no health-based Maximum Contaminant Level (MCL) exceedances during the past five years across the 7 water systems serving this postal area.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
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Cities in ZIP 59870
Water Systems Serving 59870
WHISPERING TREES MOBILE PARK
PWSID: MT0000408
100 served
WHITE BIRD COMMUNITY THE
PWSID: MT0000506
82 served
TWIN ACRES TRAILER COURT
PWSID: MT0001745
60 served
WILLOW GLEN TRAILER COURT KSPL
PWSID: MT0000098
69 served
HONEY LANE COMMUNITY
PWSID: MT0001080
50 served
VALLEY WATER SYSTEM THE
PWSID: MT0004518
82 served
STEVENSVILLE TOWN OF
PWSID: MT0000335
2,090 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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