Knox County, Tennessee
35 ZIP codes · Avg score 65/100 · Grade C · Updated
ZipCheckup grade for Knox County: C.
A mixed picture - some signals here are worth your attention.
Within Knox County, safety data across 35 ZIP codes suggests a fair but uneven system - violations are present and worth checking at the ZIP level.
How Knox County Compares
How Knox County Compares
Knox County scores 7 points below the Tennessee state average (72/100) and 8 points below 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: Knox County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.1 (asthma 10.6%, diabetes 12%)
Estimated additional annual cost per homeowner: $895, driven primarily by flood
52.2% of homes built before 1978 (lead paint era)
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: $895
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
216,703 housing units in Knox 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 Knox County
Remediation costs are relatively manageable for most homeowners in Knox 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 Knox County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Knox County
8 community water systems serving Knox County.
- C
- C
- C
- C
- C
- C
Show all 8 water systems
- C
- C
14 total water systems serve Knox County.
Systems with the most violations in Knox County
5 water systems with recorded EPA violations.
- C
- C
- D
- C
- C
All ZIP Codes in Knox County
35 ZIP codes tracked in Knox County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37902 | Knoxville | 67 | C | 0 | $571K |
| 2 | 37912 | Knoxville | 67 | C | 0 | $186K |
| 3 | 37914 | Knoxville | 67 | C | 0 | $204K |
| 4 | 37915 | Knoxville | 67 | C | 0 | $206K |
| 5 | 37916 | Knoxville | 67 | C | 0 | $270K |
| 6 | 37917 | Knoxville | 67 | C | 0 | $189K |
| 7 | 37919 | Knoxville | 67 | C | 0 | $453K |
| 8 | 37922 | Knoxville | 67 | C | 0 | $469K |
| 9 | 37909 | Knoxville | 66 | C | 1 | $274K |
| 10 | 37918 | Knoxville | 66 | C | 3 | $238K |
| 11 | 37920 | Knoxville | 66 | C | 2 | $231K |
| 12 | 37921 | Knoxville | 66 | C | 1 | $204K |
| 13 | 37923 | Knoxville | 66 | C | 1 | $293K |
| 14 | 37931 | Knoxville | 66 | C | 1 | $317K |
| 15 | 37932 | Knoxville | 66 | C | 1 | $431K |
| 16 | 37934 | Knoxville | 65 | C | 2 | $474K |
| 17 | 37806 | Mascot | 64 | C | 4 | $176K |
| 18 | 37924 | Knoxville | 64 | C | 4 | $217K |
| 19 | 37938 | Knoxville | 64 | C | 4 | $287K |
| 20 | 37849 | Powell | 62 | C | 15 | $264K |
| 21 | 37721 | Corryton | 61 | C | 12 (1 health) | $219K |
| 22 | 37871 | Strawberry Plains | 46 | D | 6 | $190K |
| 23 | 37901 | Knoxville | — | — | — | |
| 24 | 37927 | Knoxville | — | — | — | |
| 25 | 37928 | Knoxville | — | — | — | |
| 26 | 37929 | Knoxville | — | — | — | |
| 27 | 37930 | Knoxville | — | — | — | |
| 28 | 37933 | Knoxville | — | — | — | |
| 29 | 37939 | Knoxville | — | — | — | |
| 30 | 37940 | Knoxville | — | — | — | |
| 31 | 37950 | Knoxville | — | — | — | |
| 32 | 37995 | Knoxville | — | — | — | |
| 33 | 37996 | Knoxville | — | — | — | |
| 34 | 37997 | Knoxville | — | — | — | |
| 35 | 37998 | Knoxville | — | — | — |
Recommended Buyer Guides for Knox County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 52.2% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- 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 Knox County, Tennessee
Overview
Knox County in Tennessee covers 35 tracked ZIP records with an average Home Safety Score of C (65/100) across 22 scored records.
14 of 22 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.