Hamilton County, Tennessee
34 ZIP codes · Avg score 80/100 · Grade B · Updated
ZipCheckup grade for Hamilton County: B.
This ZIP looks solid, with a few items worth a quick check.
Hamilton County maintains reliable drinking water quality across all 34 of its tracked ZIP codes.
How Hamilton County Compares
How Hamilton County Compares
Hamilton County scores 8 points above the Tennessee state average (72/100) and 7 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 Last verified:
ZIP Code Risk Map
Water Quality Map: Hamilton County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.5 (asthma 11%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $1,402, driven primarily by flood
62.3% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Hamilton County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 6 violations. Past 5 years: 7 total (7 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,402
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
166,096 housing units in Hamilton 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 Hamilton County
Remediation costs are relatively manageable for most homeowners in Hamilton 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 Hamilton County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Hamilton County
8 community water systems serving Hamilton County.
- B
- B
- B
- C
- B
Show all 8 water systems
- B
- B
15 total water systems serve Hamilton County.
Systems with the most violations in Hamilton County
5 water systems with recorded EPA violations.
- B
- B
- B
- C
- B
All ZIP Codes in Hamilton County
34 ZIP codes tracked in Hamilton County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37339 | Gruetli Laager | 83 | B | 0 | $145K |
| 2 | 37351 | Lupton City | 83 | B | 0 | $170K |
| 3 | 37402 | Chattanooga | 83 | B | 0 | $460K |
| 4 | 37403 | Chattanooga | 83 | B | 0 | $444K |
| 5 | 37404 | Chattanooga | 83 | B | 0 | $235K |
| 6 | 37405 | Chattanooga | 83 | B | 0 | $417K |
| 7 | 37406 | Chattanooga | 83 | B | 0 | $150K |
| 8 | 37407 | Chattanooga | 83 | B | 0 | $85K |
| 9 | 37408 | Chattanooga | 83 | B | 0 | $460K |
| 10 | 37409 | Chattanooga | 83 | B | 0 | $246K |
| 11 | 37410 | Chattanooga | 83 | B | 0 | $134K |
| 12 | 37411 | Chattanooga | 83 | B | 0 | $217K |
| 13 | 37412 | Chattanooga | 83 | B | 0 | $183K |
| 14 | 37415 | Chattanooga | 83 | B | 1 | $262K |
| 15 | 37302 | Apison | 80 | B | 3 | $372K |
| 16 | 37373 | Sale Creek | 80 | B | 3 | $296K |
| 17 | 37416 | Chattanooga | 80 | B | 3 | $230K |
| 18 | 37419 | Chattanooga | 80 | B | 7 | $303K |
| 19 | 37421 | Chattanooga | 80 | B | 3 | $300K |
| 20 | 37341 | Harrison | 79 | B | 5 | $264K |
| 21 | 37379 | Soddy Daisy | 79 | B | 5 (1 health) | $278K |
| 22 | 37377 | Signal Mountain | 75 | B | 13 | $484K |
| 23 | 37343 | Hixson | 66 | C | 1 | $275K |
| 24 | 37363 | Ooltewah | 62 | C | 5 | $350K |
| 25 | 37304 | Bakewell | — | — | — | |
| 26 | 37315 | Collegedale | — | — | — | |
| 27 | 37350 | Lookout Mountain | — | — | 0 | $762K |
| 28 | 37362 | Old Fort | — | — | 1 | $117K |
| 29 | 37384 | Soddy Daisy | — | — | — | |
| 30 | 37401 | Chattanooga | — | — | — | |
| 31 | 37414 | Chattanooga | — | — | — | |
| 32 | 37422 | Chattanooga | — | — | — | |
| 33 | 37424 | Chattanooga | — | — | — | |
| 34 | 37450 | Chattanooga | — | — | — |
Recommended Buyer Guides for Hamilton County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 62.3% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Hamilton County, Tennessee
Overview
Hamilton County in Tennessee covers 34 tracked ZIP records with an average Home Safety Score of B (80/100) across 24 scored records.
12 of 26 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
← Back to Tennessee 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.