LaPorte County, Indiana
12 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-03
Water utilities serving LaPorte County's 12 ZIP codes have built a consistent compliance record — the county's above-average grade reflects years of data showing low violation rates and no systemic health concerns.
How LaPorte County Compares
How LaPorte County Compares
LaPorte County scores 17 points above the Indiana state average (60/100) and 9 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: LaPorte County, Indiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.9 (asthma 11%, diabetes 14.8%)
Estimated additional annual cost per homeowner: $1,133, driven primarily by sea_level
Infrastructure: 0.403% avg pipe failure probability, 42% of ZIPs at high risk
62.7% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across LaPorte County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 13 violations. Past 5 years: 18 total (18 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $1,133
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
51,761 housing units in LaPorte 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 LaPorte County
Remediation costs are relatively manageable for most homeowners in LaPorte 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 LaPorte 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 LaPorte County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Share Foundation | 86 | 115 |
| 2 | Shady Grove Mobile Home Park | 100 | 106 |
| 3 | Springhill Mobile Home Court | 92 | 106 |
| 4 | Neighbors of Rolling Prairie | 70 | 106 |
| 5 | Willow Creek Crossing | 34 | 106 |
26 total water systems serve LaPorte County.
All ZIP Codes in LaPorte County
12 ZIP codes tracked in LaPorte County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 46361 | Michigan City | 87 | A | 13 (1 health) | — |
| 2 | 46390 | Wanatah | 87 | A | 2 (1 health) | $218K |
| 3 | 46346 | Kingsford Heights | 86 | A | 1 | $103K |
| 4 | 46345 | Kingsbury | 83 | B | 7 | $197K |
| 5 | 46352 | La Porte | 82 | B | 53 (2 health) | — |
| 6 | 46371 | Rolling Prairie | 82 | B | 9 (2 health) | $246K |
| 7 | 46391 | Westville | 80 | B | 12 | $255K |
| 8 | 46350 | La Porte | 77 | B | 53 (2 health) | $200K |
| 9 | 46360 | Michigan City | 76 | B | 13 (1 health) | $156K |
| 10 | 46574 | Walkerton | 74 | B | 5 | $167K |
| 11 | 46301 | Beverly Shores | 60 | C | 0 | $582K |
| 12 | 46374 | San Pierre | 50 | D | 0 | $185K |
Recommended Buyer Guides for LaPorte County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- Best Lead Paint Test Kits — 62.7% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for LaPorte County, Indiana
Overview
LaPorte County in Indiana covers 12 ZIP codes with an average Home Safety Score of B (77/100).
10 of 12 ZIP codes have recorded EPA violations. 9 health-based violations have been documented.
← Back to Indiana 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.