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

Water quality varies significantly across Tucson, AZ. We analyzed 54 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.

City Overview: Grade D (53/100)

Grade	Neighborhoods	%
A	0	0%
B	0	0%
C	12	22%
D	42	78%
F	0	0%

Neighborhood Rankings

Every ZIP code in Tucson ranked by Home Safety Score:

Rank	ZIP Code	Score	Grade	Violations	Lead Risk
1	85701	58	C	218	0.0006 mg/L
2	85704	58	C	218	0.0006 mg/L
3	85706	58	C	218	0.0006 mg/L
4	85711	58	C	218	0.0006 mg/L
5	85713	58	C	218	0.0006 mg/L
6	85714	58	C	218	0.0006 mg/L
7	85730	58	C	218	0.0006 mg/L
8	85741	58	C	218	0.0006 mg/L
9	85743	58	C	218	0.0006 mg/L
10	85746	58	C	218	0.0006 mg/L
11	85748	58	C	218	0.0006 mg/L
12	85755	58	C	218	0.0006 mg/L
13	85705	53	D	218	0.0006 mg/L
14	85710	53	D	218	0.0006 mg/L
15	85712	53	D	218	0.0006 mg/L
16	85715	53	D	218	0.0006 mg/L
17	85716	53	D	218	0.0006 mg/L
18	85718	53	D	218	0.0006 mg/L
19	85719	53	D	218	0.0006 mg/L
20	85735	53	D	218	0.0006 mg/L
21	85737	53	D	218	0.0006 mg/L
22	85739	53	D	218	0.0006 mg/L
23	85742	53	D	218	0.0006 mg/L
24	85745	53	D	218	0.0006 mg/L
25	85747	53	D	218	0.0006 mg/L
26	85750	53	D	218	0.0006 mg/L
27	85756	53	D	218	0.0006 mg/L
28	85757	53	D	218	0.0006 mg/L
29	85702	50	D	218	0.0006 mg/L
30	85703	50	D	218	0.0006 mg/L
31	85707	50	D	218	0.0006 mg/L
32	85708	50	D	218	0.0006 mg/L
33	85709	50	D	218	0.0006 mg/L
34	85717	50	D	218	0.0006 mg/L
35	85720	50	D	218	0.0006 mg/L
36	85721	50	D	218	0.0006 mg/L
37	85722	50	D	218	0.0006 mg/L
38	85723	50	D	218	0.0006 mg/L
39	85724	50	D	218	0.0006 mg/L
40	85725	50	D	218	0.0006 mg/L
41	85726	50	D	218	0.0006 mg/L
42	85728	50	D	218	0.0006 mg/L
43	85731	50	D	218	0.0006 mg/L
44	85732	50	D	218	0.0006 mg/L
45	85733	50	D	218	0.0006 mg/L
46	85734	50	D	218	0.0006 mg/L
47	85736	50	D	218	0.0006 mg/L
48	85740	50	D	218	0.0006 mg/L
49	85744	50	D	218	0.0006 mg/L
50	85751	50	D	218	0.0006 mg/L
51	85752	50	D	218	0.0006 mg/L
52	85754	50	D	218	0.0006 mg/L
53	85775	50	D	218	0.0006 mg/L
54	85749	48	D	218	0.0006 mg/L

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

• 12 neighborhoods score better than county average
• 42 neighborhoods score worse than county average

EPA Violations

• 11,772 total violations across Tucson
• 1566 health-based violations
• 54 of 54 ZIP codes have violations
• 0 ZIP codes exceed EPA lead action level

Top Contaminants

Contaminant	Violations	ZIPs
Consumer Confidence Report Rule	2376	54
Lead and Copper Rule	1458	54
Revised Total Coliform Rule	1134	54
Stage 1 DBP Rule	918	54
E. coli	810	54

Frequently Asked Questions

What is the safest neighborhood in Tucson?

ZIP code 85701 has the highest safety score in Tucson at 58/100 (grade C). Check the full report for details.

Is Tucson water safe to drink?

Tucson has an average water safety score of 53/100 (D). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.

Related Pages

• Tucson, AZ city page
• Arizona state rankings
• All Arizona alerts

Data Sources

• EPA SDWIS
• U.S. Census Bureau

Updated daily.