COUNTY REPORT TN

Hamilton County, Tennessee

34 ZIP codes · Avg score 80/100 · Grade B

ZipCheckup grade for Hamilton County: B.

This ZIP has a few items worth a quick check.

A high composite grade for Hamilton County is a summary of data, not a water test, so check the report for your own ZIP code among the 34 listed.

How Hamilton County Compares

Hamilton County80/100
Tennessee avg72/100
National avg73/100

How Hamilton County Compares

B
County Grade
80/100
Avg Safety Score
34
ZIP Codes
15
Water Systems

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

B
County Grade
80
Avg Safety Score
34
ZIP Codes
Best ZIP: 37339 (83/100)
Lowest ZIP: 37363 (62/100)
$270K
Median Home Value
$519
Avg Remediation (0.19% of home value)

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.

A B C D F

Key Risk Factors

Health risk index: 13.5 (asthma 11%, diabetes 12.7%)

Modeled additional annual cost estimate per homeowner: $1,299, largest modeled factor: Flood

52% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 11% (national: 8.9%)
Diabetes 12.7% (national: 10.5%)
Obesity 34.5% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1971
Median Build Year
52%
Pre-1980 Housing
33/100
Infrastructure Stress Indicator
21%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

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: $1,299

Flood $1,120/yr
Energy Code Gap $422/yr
Water / Lead $142/yr

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

Pre-1940 9%
1940–1959 16%
1960–1979 27%
1980–1999 24%
2000+ 24%

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

$270K
Median Home Value
$519
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Hamilton County 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 Hamilton County residents

Asthma 11% (US avg: 8.9%)
Diabetes 12.7% (US avg: 11%)
Obesity 34.5% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Hamilton County ZIP codes

8 community water systems mapped to Hamilton County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

15 water systems mapped to Hamilton County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Hamilton County

5 water systems with violations in EPA records.

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

When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.

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

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Hamilton County?
Hamilton County receives an average Home Safety grade of B from its scored ZIP records (34 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Hamilton County?
We map 15 public water systems to 34 ZIP codes in our data for Hamilton County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Hamilton County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Hamilton County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,299 per homeowner; actual costs vary by home.
How old are homes in Hamilton County?
The median home build year in Hamilton County is 1971. 52% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Hamilton County compare to Tennessee?
Hamilton County has an average Home Safety Score of 80/100 under model 4.0.0, which is at or above the Tennessee state average of 72/100.

How to cite this page

APA ZipCheckup. (2026). Hamilton County, TN: HSS 80/100; 1 Health Violation. https://zipcheckup.com/county/tennessee/hamilton/
BibTeX
@misc{zipcheckup-county-tennessee-hamilton,
  author = {{ZipCheckup}},
  title  = {{Hamilton County, TN: HSS 80/100; 1 Health Violation}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/tennessee/hamilton/}
}

Page version: October 2026.

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