2026 Rankings

Worst ZIP Codes for Homebuyers in Arizona — 2026

Last updated: July 19, 2026

553 ZIP codes ranked by Purchase Risk #1: ZIP 85533 (Clifton, AZ) - 63/100
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 553 ZIP codes with data in Arizona, these are the highest-ranked areas for purchase risk. See also: National Worst ZIP Codes for Homebuyers — Hidden Risk Factors | All Arizona Rankings

Statistic Value
ZIP codes ranked 553
Highest value 63/100
Median value 39/100
State Arizona

Top 100 Worst ZIP Codes

Rank ZIP Code City State Purchase Risk Safety Score
1 85533 Clifton AZ 63/100 49/100
2 85352 Tacna AZ 57/100 58/100
3 85135 Hayden AZ 56/100 48/100
4 85272 Stanfield AZ 56/100 50/100
5 85328 Cibola AZ 56/100 58/100
6 85534 Duncan AZ 56/100 74/100
7 85191 Valley Farms AZ 55/100 63/100
8 85001 Phoenix AZ 54/100 58/100
9 85002 Phoenix AZ 54/100 50/100
10 85005 Phoenix AZ 54/100 58/100
11 85010 Phoenix AZ 54/100 50/100
12 85011 Phoenix AZ 54/100 50/100
13 85018 Phoenix AZ 54/100 48/100
14 85025 Phoenix AZ 54/100 50/100
15 85026 Phoenix AZ 54/100 50/100
16 85030 Phoenix AZ 54/100 58/100
17 85036 Phoenix AZ 54/100 58/100
18 85038 Phoenix AZ 54/100 50/100
19 85039 Phoenix AZ 54/100 50/100
20 85046 Phoenix AZ 54/100 50/100
21 85055 Phoenix AZ 54/100 50/100
22 85060 Phoenix AZ 54/100 58/100
23 85061 Phoenix AZ 54/100 58/100
24 85062 Phoenix AZ 54/100 50/100
25 85063 Phoenix AZ 54/100 50/100
26 85064 Phoenix AZ 54/100 58/100
27 85065 Phoenix AZ 54/100 50/100
28 85066 Phoenix AZ 54/100 50/100
29 85067 Phoenix AZ 54/100 58/100
30 85068 Phoenix AZ 54/100 50/100
31 85069 Phoenix AZ 54/100 50/100
32 85070 Phoenix AZ 54/100 50/100
33 85071 Phoenix AZ 54/100 50/100
34 85072 Phoenix AZ 54/100 50/100
35 85073 Phoenix AZ 54/100 50/100
36 85074 Phoenix AZ 54/100 50/100
37 85075 Phoenix AZ 54/100 50/100
38 85076 Phoenix AZ 54/100 50/100
39 85078 Phoenix AZ 54/100 50/100
40 85079 Phoenix AZ 54/100 50/100
41 85080 Phoenix AZ 54/100 50/100
42 85082 Phoenix AZ 54/100 50/100
43 85097 Phoenix AZ 54/100 50/100
44 85098 Phoenix AZ 54/100 50/100
45 85223 Arizona City AZ 54/100 48/100
46 85228 Coolidge AZ 54/100 79/100
47 85241 Picacho AZ 54/100 80/100
48 85311 Glendale AZ 54/100 69/100
49 85312 Glendale AZ 54/100 69/100
50 85318 Glendale AZ 54/100 69/100
51 85632 San Simon AZ 54/100 58/100
52 85707 Tucson AZ 54/100 50/100
53 85031 Phoenix AZ 53/100 48/100
54 85654 Rillito AZ 53/100 65/100
55 86029 Sun Valley AZ 53/100 69/100
56 85007 Phoenix AZ 52/100 53/100
57 85013 Phoenix AZ 52/100 48/100
58 85015 Phoenix AZ 52/100 48/100
59 85017 Phoenix AZ 52/100 53/100
60 85019 Phoenix AZ 52/100 53/100
61 85117 Apache Junction AZ 52/100 72/100
62 85178 Apache Junction AZ 52/100 72/100
63 85218 Apache Junction AZ 52/100 72/100
64 85220 Apache Junction AZ 52/100 74/100
65 85324 Black Canyon City AZ 52/100 58/100
66 85702 Tucson AZ 52/100 50/100
67 85703 Tucson AZ 52/100 50/100
68 85709 Tucson AZ 52/100 50/100
69 85717 Tucson AZ 52/100 50/100
70 85720 Tucson AZ 52/100 50/100
71 85721 Tucson AZ 52/100 50/100
72 85722 Tucson AZ 52/100 50/100
73 85723 Tucson AZ 52/100 50/100
74 85724 Tucson AZ 52/100 50/100
75 85725 Tucson AZ 52/100 50/100
76 85726 Tucson AZ 52/100 50/100
77 85728 Tucson AZ 52/100 50/100
78 85731 Tucson AZ 52/100 50/100
79 85732 Tucson AZ 52/100 50/100
80 85733 Tucson AZ 52/100 50/100
81 85734 Tucson AZ 52/100 50/100
82 85740 Tucson AZ 52/100 50/100
83 85744 Tucson AZ 52/100 50/100
84 85751 Tucson AZ 52/100 50/100
85 85752 Tucson AZ 52/100 50/100
86 85754 Tucson AZ 52/100 50/100
87 85775 Tucson AZ 52/100 50/100
88 85008 Phoenix AZ 51/100 48/100
89 85009 Phoenix AZ 51/100 53/100
90 85021 Phoenix AZ 51/100 48/100
91 85238 Maricopa AZ 51/100 50/100
92 85239 Maricopa AZ 51/100 58/100
93 85366 Yuma AZ 51/100 59/100
94 85369 Yuma AZ 51/100 59/100
95 85621 Nogales AZ 51/100 63/100
96 85705 Tucson AZ 51/100 53/100
97 86047 Winslow AZ 51/100 70/100
98 86302 Prescott AZ 51/100 27/100
99 86304 Prescott AZ 51/100 27/100
100 86313 Prescott AZ 51/100 27/100

Methodology

The Home Purchase Risk Score combines environmental hazards that create unexpected costs for homebuyers: water system violations requiring filtration, lead service lines requiring replacement, radon requiring mitigation systems, flood zones requiring insurance, and aging infrastructure requiring upgrades. These are factors that standard home inspections may not fully capture.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-07-19.

Frequently Asked Questions

What is the Home Purchase Risk Score?

This score (0-100) estimates the hidden environmental costs a homebuyer may face: water filtration needs, lead pipe replacement, radon mitigation, flood insurance, and infrastructure upgrades. Higher scores mean more potential unexpected expenses after purchase.

What should homebuyers do in high-risk ZIP codes?

Request a water quality test, check for lead service lines with the utility, test for radon before closing, verify FEMA flood zone designation, and factor in potential remediation costs ($5,000-$30,000+) to your budget.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

Related Rankings

Water Safety 2026 EPA violations and water quality scores Lead Risk 2026 Lead pipe infrastructure and EPA exceedances Infrastructure 2026 Aging pipes, system age and remediation costs
Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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