Home Safety
Water Safety
Lead Risk
PFAS Contamination
Flood Risk
Air Quality
Mold Risk
Wildfire Risk
Earthquake Risk
Infrastructure Risk
CO & Gas Safety
School Safety
Superfund Proximity
2026 Rankings
Lake County, Indiana Home Safety Rankings - 33 ZIPs
Explore rankings under Home Safety Score model 4.0.0. Only ZIPs with all four required inputs are ranked; missing evidence is not imputed or reweighted.
Lake County, Indiana (Indiana) includes 33 tracked ZIP codes and 21 mapped community water systems; confirm service for a specific address. Below are the water quality rankings for metro ZIPs with all required inputs.
Average Home Safety Grade: B (74/100)
| Grade | ZIP Codes | % |
|---|---|---|
| A | 0 | 0% |
| B | 23 | 88% |
| C | 3 | 12% |
| D | 0 | 0% |
| F | 0 | 0% |
Top 10 ZIP Codes by Home Safety Score
| Rank | ZIP | City | Score | Grade |
|---|---|---|---|---|
| 1 | 46393 | Wheeler | 83 | B |
| 2 | 46368 | Portage | 80 | B |
| 3 | 46311 | Dyer | 75 | B |
| 4 | 46322 | Highland | 75 | B |
| 5 | 46342 | Hobart | 75 | B |
| 6 | 46375 | Schererville | 75 | B |
| 7 | 46402 | Gary | 75 | B |
| 8 | 46403 | Gary | 75 | B |
| 9 | 46404 | Gary | 75 | B |
| 10 | 46405 | Lake Station | 75 | B |
10 Riskiest ZIP Codes
| Rank | ZIP | City | Score | Grade | Risk Factor |
|---|---|---|---|---|---|
| 1 | 46303 | Cedar Lake | 59 | C | 81 violations |
| 2 | 46324 | Hammond | 69 | C | 11 violations |
| 3 | 46321 | Munster | 69 | C | 11 violations |
| 4 | 46320 | Hammond | 70 | B | 16 violations |
| 5 | 46394 | Whiting | 72 | B | 9 violations |
| 6 | 46312 | East Chicago | 72 | B | 9 violations |
| 7 | 46373 | Saint John | 73 | B | 6 violations |
| 8 | 46327 | Hammond | 73 | B | 7 violations |
| 9 | 46323 | Hammond | 73 | B | 7 violations |
| 10 | 46410 | Merrillville | 74 | B | 4 violations |
Most Common Contaminant Violations
| Contaminant | Violations | ZIPs Affected |
|---|---|---|
| Consumer Confidence Report Rule | 26 | 11 |
| Surface Water Treatment Rule | 25 | 13 |
| Haloacetic Acids (HAA5) | 23 | 12 |
| Total Trihalomethanes (TTHM) | 19 | 11 |
| Stage 1 DBP Rule | 10 | 8 |
| Di(2-ethylhexyl) adipate | 7 | 7 |
| Simazine | 7 | 7 |
| Atrazine | 7 | 7 |
Lead Risk
- Average of reported 90th-percentile lead results: 0.0044 mg/L (below EPA action level)
- 0 of 28 ZIP codes with known status exceed EPA lead action level
- 25% of housing built before 1950
- 55% of housing built before 1970
Cities in This Metro
- Gary, IN — 8 ZIP codes
- Hammond, IN — 5 ZIP codes
- Merrillville, IN — 2 ZIP codes
- Boone Grove, IN — 1 ZIP code
- Cedar Lake, IN — 1 ZIP code
- Dyer, IN — 1 ZIP code
- East Chicago, IN — 1 ZIP code
- Griffith, IN — 1 ZIP code
- Munster, IN — 1 ZIP code
- Highland, IN — 1 ZIP code
- Hebron, IN — 1 ZIP code
- Hobart, IN — 1 ZIP code
- Leroy, IN — 1 ZIP code
- Lowell, IN — 1 ZIP code
- Portage, IN — 1 ZIP code
- Saint John, IN — 1 ZIP code
- Schererville, IN — 1 ZIP code
- Schneider, IN — 1 ZIP code
- Wheeler, IN — 1 ZIP code
- Whiting, IN — 1 ZIP code
- Lake Station, IN — 1 ZIP code
All 33 ZIP Codes Ranked
View complete ranking
| Rank | ZIP | City | Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 46393 | Wheeler | 83 | B | 0 |
| 2 | 46368 | Portage | 80 | B | 11 |
| 3 | 46311 | Dyer | 75 | B | 2 |
| 4 | 46322 | Highland | 75 | B | 0 |
| 5 | 46342 | Hobart | 75 | B | 0 |
| 6 | 46375 | Schererville | 75 | B | 1 |
| 7 | 46402 | Gary | 75 | B | 0 |
| 8 | 46403 | Gary | 75 | B | 0 |
| 9 | 46404 | Gary | 75 | B | 0 |
| 10 | 46405 | Lake Station | 75 | B | 0 |
| 11 | 46407 | Gary | 75 | B | 0 |
| 12 | 46409 | Gary | 75 | B | 0 |
| 13 | 46319 | Griffith | 74 | B | 4 |
| 14 | 46356 | Lowell | 74 | B | 1 |
| 15 | 46406 | Gary | 74 | B | 3 |
| 16 | 46408 | Gary | 74 | B | 3 |
| 17 | 46410 | Merrillville | 74 | B | 4 |
| 18 | 46323 | Hammond | 73 | B | 7 |
| 19 | 46327 | Hammond | 73 | B | 7 |
| 20 | 46373 | Saint John | 73 | B | 6 |
| 21 | 46312 | East Chicago | 72 | B | 9 |
| 22 | 46394 | Whiting | 72 | B | 9 |
| 23 | 46320 | Hammond | 70 | B | 16 |
| 24 | 46321 | Munster | 69 | C | 11 |
| 25 | 46324 | Hammond | 69 | C | 11 |
| 26 | 46303 | Cedar Lake | 59 | C | 81 |
| 27 | 46341 | Hebron | — | — | 11 |
| 28 | 46376 | Schneider | — | — | 1 |
Data Sources
- Water quality: EPA SDWIS
- Housing: U.S. Census Bureau American Community Survey
- Flood: FEMA NFIP
- Flood scope: historical NFIP claim records and claim-rated-zone evidence; this is not current property-map coverage.
Reporting periods vary by source; the page metadata identifies this materialization.
Methodology
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →
Disclaimer: Scores are based on EPA SDWIS reported data and are not a guarantee of current water safety. Water quality can change. For the most current information, contact your local water utility or request a Consumer Confidence Report.
Explore More
How to cite this page
APA
ZipCheckup. (2026). Lake County, Indiana Home Safety Rankings - 33 ZIPs. https://zipcheckup.com/rankings/metro/lake-indiana/
BibTeX
@misc{zipcheckup-rankings-metro-lake-indiana,
author = {{ZipCheckup}},
title = {{Lake County, Indiana Home Safety Rankings - 33 ZIPs}},
year = {2026},
url = {https://zipcheckup.com/rankings/metro/lake-indiana/}
}
Page version: October 2026.
Get safety alerts
Free updates when EPA data changes for this area. No spam.
Unsubscribe anytime. Privacy Policy.