St. Tammany Parish, Louisiana
19 ZIP codes · Avg score 90/100 · Grade A
ZipCheckup grade for St. Tammany Parish: A.
Checked records flag no major concern; missing data is unknown.
Looking at the composite Home Safety Score, St. Tammany Parish comes out in the A-B range, and the reports for its 19 ZIP codes show which data sit behind that result.
How St. Tammany Parish Compares
How St. Tammany Parish Compares
St. Tammany Parish scores 2 points below the Louisiana state average (92/100) and 17 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: St. Tammany Parish, Louisiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.8 (asthma 9.5%, diabetes 13.3%)
Modeled additional annual cost estimate per homeowner: $4,725, largest modeled factor: Sea Level
24% of homes built before 1980 (lead paint was banned for residential use in 1978)
Parish Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,725
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
107,240 housing units in St. Tammany Parish
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 St. Tammany Parish
Modeled remediation costs in St. Tammany Parish can be compared with the median property value; actual costs vary by property.
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 St. Tammany Parish residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to St. Tammany Parish ZIP codes
8 community water systems mapped to St. Tammany Parish ZIP codes; EPA may list more systems serving the parish.
- A
- A
- A
- A
- A
- A
Show all 8 water systems
- A
- A
37 water systems mapped to St. Tammany Parish ZIP codes in our data; EPA may list more systems serving the parish.
Systems with the most violations in St. Tammany Parish
5 water systems with violations in EPA records.
- B
- B
- A
- A
- A
All ZIP Codes in St. Tammany Parish
19 ZIP codes tracked in St. Tammany Parish.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 70420 | Abita Springs | 97 | A | 3 (1 health) | $278K |
| 2 | 70431 | Bush | 97 | A | 5 (3 health) | $242K |
| 3 | 70448 | Mandeville | 97 | A | 4 | $324K |
| 4 | 70447 | Madisonville | 92 | A | 8 (1 health) | $391K |
| 5 | 70471 | Mandeville | 92 | A | 8 (1 health) | $370K |
| 6 | 70460 | Slidell | 91 | A | 14 (8 health) | $184K |
| 7 | 70461 | Slidell | 90 | A | 21 (10 health) | $267K |
| 8 | 70435 | Covington | 87 | A | 12 (6 health) | $272K |
| 9 | 70433 | Covington | 83 | B | 19 (7 health) | $316K |
| 10 | 70452 | Pearl River | 83 | B | 43 (13 health) | $220K |
| 11 | 70458 | Slidell | 83 | B | 57 (20 health) | $227K |
| 12 | 70434 | Covington | — | — | — | |
| 13 | 70445 | Lacombe | — | — | 4 | $220K |
| 14 | 70457 | Saint Benedict | — | — | — | |
| 15 | 70459 | Slidell | — | — | — | |
| 16 | 70463 | Sun | — | — | — | |
| 17 | 70464 | Talisheek | — | — | — | |
| 18 | 70469 | Slidell | — | — | — | |
| 19 | 70470 | Mandeville | — | — | — |
Recommended Buyer Guides for St. Tammany Parish
Up to five guides, picked by rule.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for St. Tammany Parish, Louisiana
Overview
St. Tammany Parish in Louisiana covers 19 tracked ZIP records with an average Home Safety Score of A (90/100) across 11 scored records.
12 of 12 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 40 health-based violations appear in the available health breakdown.
← Back to Louisiana Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.