Is Boise tap water safe to drink?

Yes with good quality

Boise's tap water meets all EPA standards and scores well on our analysis. It is generally safe to drink though filtration can improve taste and provide extra precaution.

85/100
Purity Score
1
Issues Found
4.5 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Boise

Arsenic Approaching Limit (0.1 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Boise
Idaho

837,018,370,283,703 · Boise River and groundwater

Is Boise Tap Water Safe? Full Analysis

Low Risk Updated March 2026 235,684 residents
See Best Filters for Boise
85
Purity Score

Water quality in Boise, Idaho is evaluated here using public utility data and independent testing. The report includes a purity score, contaminant breakdown, and tailored filter recommendations.

Contaminant Levels

PFAS
ND
Lead
1 ppb
Nitrate
0.6 mg/L
Arsenic
0.1 mg/L
Hardness
4.5 gpg

Health Insights

  • 1
    Boise's water meets current EPA standards. Filtration can improve taste and provide extra safety.

Score

85 /100
Excellent
"Good" threshold (70)

Boise tap water is sourced from Boise River and groundwater and treated by City of Boise Public Works. Overall purity score: 85/100 (Excellent). Updated for 2026.

Fix Your Water

Best filters matched to Boise's 1 issue.

See Filters

Explore Boise Water Data

PFAS Levels in BoisePFAS testing data
Boise Lead LevelsLead testing data
Water Hardness in BoiseHardness levels
Best FiltersFull comparison
IdahoState rankings

Boise Water FAQ

Is Boise ID tap water safe to drink in 2026?
Boise tap water meets EPA federal drinking water standards and scores 85/100 (Excellent) on PurityMap for 2026. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Boise ID use chlorine or chloramine for disinfection?
Boise uses chlorine as the primary disinfectant with a residual level of 0.7 ppm. Standard activated carbon filters including pitcher filters are effective at removing free chlorine taste and odor.
How hard is Boise ID water and what is the TDS level?
Boise water hardness is 4.5 grains per gallon (moderate) with a TDS of 165 ppm (good). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Boise ID drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Boise drinking water.
What is the best water filter for Boise?
Based on Boise's water profile, we recommend the Clearly Filtered Water Pitcher. Boise water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

Idaho FallsIdaho — 81/100Twin FallsIdaho — 81/100PocatelloIdaho — 82/100NampaIdaho — 85/100MeridianIdaho — 85/100CaldwellIdaho — 85/100

All Idaho cities

Explore Water Quality by State

Compare across all 50 US states

View All States

Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • City of Boise Public Works CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

Link copied!

Scroll to Top