Caribou County, Idaho
6 ZIP codes · Avg score 64/100 · Grade C · Updated 2026-06-03
Spanning 6 ZIP codes, Caribou County lands near the national median for water safety — compliance results are mixed, and the county's middle-grade standing reflects genuine variability rather than a single systemic problem.
How Caribou County Compares
How Caribou County Compares
Caribou County scores 2 points below the Idaho state average (66/100) and 4 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Caribou County, Idaho
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.4 (asthma 10.7%, diabetes 10.1%)
Estimated additional annual cost per homeowner: $893, driven primarily by energy_code_gap
Infrastructure: 0.362% avg pipe failure probability, 40% of ZIPs at high risk
52% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $893
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
3,221 housing units in Caribou County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Caribou County
Remediation costs are relatively manageable for most homeowners in Caribou County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Caribou County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Caribou County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | SODA SPRINGS CITY OF | 3,111 | 5 |
| 2 | Bailey Creek Property Owners Assn | 250 | 5 |
| 3 | Valley View Water Assn | 35 | 5 |
| 4 | Evergreen Heights Subd | 25 | 5 |
| 5 | City of Grace | 920 | 4 |
8 total water systems serve Caribou County.
All ZIP Codes in Caribou County
6 ZIP codes tracked in Caribou County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 83241 | Grace | 82 | B | 4 (1 health) | $206K |
| 2 | 83276 | Soda Springs | 77 | B | 5 | $225K |
| 3 | 83217 | Bancroft | 63 | C | 0 | $226K |
| 4 | 83230 | Conda | 53 | D | 0 | — |
| 5 | 83283 | Thatcher | 53 | D | 0 | — |
| 6 | 83285 | Wayan | 53 | D | 0 | $450K |
Recommended Buyer Guides for Caribou County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 52% of homes built before 1978
Deep Dive Reports
Detailed analysis for Caribou County, Idaho
Overview
Caribou County in Idaho covers 6 ZIP codes with an average Home Safety Score of C (64/100).
2 of 6 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Idaho water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.