Data source: EPA SDWIS Last verified: 2026-06-04

Water quality varies significantly across Knoxville, TN. We analyzed 31 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.

City Overview: Grade C (66/100)

Grade	Neighborhoods	%
A	0	0%
B	7	23%
C	24	77%
D	0	0%
F	0	0%

Neighborhood Rankings

Every ZIP code in Knoxville ranked by Home Safety Score:

Rank	ZIP Code	Score	Grade	Violations	Lead Risk
1	37901	70	B	0	0.0006 mg/L
2	37902	70	B	0	0.0006 mg/L
3	37909	70	B	0	0.0006 mg/L
4	37916	70	B	0	0.0006 mg/L
5	37921	70	B	0	0.0006 mg/L
6	37924	70	B	0	0.0006 mg/L
7	37932	70	B	0	0.0006 mg/L
8	37915	66	C	0	0.0006 mg/L
9	37927	66	C	0	0.0006 mg/L
10	37928	66	C	0	0.0006 mg/L
11	37929	66	C	0	0.0006 mg/L
12	37930	66	C	0	0.0006 mg/L
13	37933	66	C	0	0.0006 mg/L
14	37939	66	C	0	0.0006 mg/L
15	37940	66	C	0	0.0006 mg/L
16	37950	66	C	0	0.0006 mg/L
17	37995	66	C	0	0.0006 mg/L
18	37996	66	C	0	0.0006 mg/L
19	37997	66	C	0	0.0006 mg/L
20	37998	66	C	0	0.0006 mg/L
21	37912	65	C	0	0.0006 mg/L
22	37914	65	C	0	0.0006 mg/L
23	37919	65	C	0	0.0006 mg/L
24	37920	65	C	0	0.0006 mg/L
25	37922	65	C	0	0.0006 mg/L
26	37923	65	C	0	0.0006 mg/L
27	37931	65	C	0	0.0006 mg/L
28	37934	65	C	0	0.0006 mg/L
29	37938	65	C	0	0.0006 mg/L
30	37917	60	C	0	0.0006 mg/L
31	37918	60	C	0	0.0006 mg/L

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

• 29 neighborhoods score better than county average
• 2 neighborhoods score worse than county average

Frequently Asked Questions

What is the safest neighborhood in Knoxville?

ZIP code 37901 has the highest safety score in Knoxville at 70/100 (grade B). Check the full report for details.

Is Knoxville water safe to drink?

Knoxville has an average water safety score of 66/100 (C). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.

Related Pages

• Knoxville, TN city page
• Tennessee state rankings
• All Tennessee alerts

Data Sources

• EPA SDWIS
• U.S. Census Bureau

Updated daily.