2026 Rankings

Worst Infrastructure: Virginia — 2026 Rankings

Last updated: August 31, 2026

873 ZIP codes ranked by Pipe Failure Risk #1: ZIP 20105 (Aldie, VA) - NaN%
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 873 ZIP codes with infrastructure data in Virginia, these areas face the highest estimated risk of water pipe failure based on infrastructure age, funding gaps, and violation history.

Statistic Value
ZIP codes ranked 873
Highest risk NaN%
Median risk NaN%
Average risk NaN%
State Virginia

Top 100 Highest Risk ZIP Codes

Rank ZIP Code City State Pipe Failure Risk Risk Level Safety Score
1 20105 Aldie VA NaN% Unknown —
2 20106 Amissville VA NaN% Unknown —
3 20109 Manassas VA NaN% Unknown 83/100
4 20110 Manassas VA NaN% Unknown 83/100
5 20111 Manassas VA NaN% Unknown 83/100
6 20112 Manassas VA NaN% Unknown 67/100
7 20115 Marshall VA NaN% Unknown —
8 20117 Middleburg VA NaN% Unknown —
9 20119 Catlett VA NaN% Unknown —
10 20120 Centreville VA NaN% Unknown 50/100
11 20121 Centreville VA NaN% Unknown 50/100
12 20124 Clifton VA NaN% Unknown 50/100
13 20129 Paeonian Springs VA NaN% Unknown —
14 20130 Paris VA NaN% Unknown —
15 20132 Purcellville VA NaN% Unknown 66/100
16 20135 Bluemont VA NaN% Unknown —
17 20136 Bristow VA NaN% Unknown 83/100
18 20137 Broad Run VA NaN% Unknown —
19 20141 Round Hill VA NaN% Unknown 67/100
20 20143 Catharpin VA NaN% Unknown —
21 20144 Delaplane VA NaN% Unknown —
22 20147 Ashburn VA NaN% Unknown 83/100
23 20148 Ashburn VA NaN% Unknown 83/100
24 20151 Chantilly VA NaN% Unknown 50/100
25 20152 Chantilly VA NaN% Unknown 83/100
26 20155 Gainesville VA NaN% Unknown 83/100
27 20158 Hamilton VA NaN% Unknown 66/100
28 20164 Sterling VA NaN% Unknown 66/100
29 20165 Sterling VA NaN% Unknown 83/100
30 20166 Sterling VA NaN% Unknown 83/100
31 20169 Haymarket VA NaN% Unknown 83/100
32 20170 Herndon VA NaN% Unknown 50/100
33 20171 Herndon VA NaN% Unknown 50/100
34 20175 Leesburg VA NaN% Unknown 82/100
35 20176 Leesburg VA NaN% Unknown 83/100
36 20180 Lovettsville VA NaN% Unknown —
37 20181 Nokesville VA NaN% Unknown 83/100
38 20184 Upperville VA NaN% Unknown —
39 20186 Warrenton VA NaN% Unknown 67/100
40 20187 Warrenton VA NaN% Unknown 66/100
41 20190 Reston VA NaN% Unknown 50/100
42 20191 Reston VA NaN% Unknown 50/100
43 20194 Reston VA NaN% Unknown 50/100
44 20197 Waterford VA NaN% Unknown —
45 20198 The Plains VA NaN% Unknown —
46 22003 Annandale VA NaN% Unknown 50/100
47 22015 Burke VA NaN% Unknown 50/100
48 22025 Dumfries VA NaN% Unknown 67/100
49 22026 Dumfries VA NaN% Unknown 67/100
50 22027 Dunn Loring VA NaN% Unknown 50/100
51 22030 Fairfax VA NaN% Unknown —
52 22031 Fairfax VA NaN% Unknown —
53 22032 Fairfax VA NaN% Unknown 50/100
54 22033 Fairfax VA NaN% Unknown 50/100
55 22039 Fairfax Station VA NaN% Unknown 50/100
56 22041 Falls Church VA NaN% Unknown 50/100
57 22042 Falls Church VA NaN% Unknown 50/100
58 22043 Falls Church VA NaN% Unknown 50/100
59 22044 Falls Church VA NaN% Unknown 50/100
60 22046 Falls Church VA NaN% Unknown —
61 22060 Fort Belvoir VA NaN% Unknown 50/100
62 22066 Great Falls VA NaN% Unknown 50/100
63 22079 Lorton VA NaN% Unknown 50/100
64 22101 Mc Lean VA NaN% Unknown 50/100
65 22102 Mc Lean VA NaN% Unknown 50/100
66 22124 Oakton VA NaN% Unknown 50/100
67 22125 Occoquan VA NaN% Unknown 67/100
68 22134 Quantico VA NaN% Unknown 67/100
69 22150 Springfield VA NaN% Unknown 50/100
70 22151 Springfield VA NaN% Unknown 50/100
71 22152 Springfield VA NaN% Unknown 50/100
72 22153 Springfield VA NaN% Unknown 50/100
73 22172 Triangle VA NaN% Unknown 67/100
74 22180 Vienna VA NaN% Unknown 50/100
75 22181 Vienna VA NaN% Unknown 50/100
76 22182 Vienna VA NaN% Unknown 50/100
77 22191 Woodbridge VA NaN% Unknown 67/100
78 22192 Woodbridge VA NaN% Unknown 67/100
79 22193 Woodbridge VA NaN% Unknown 67/100
80 22201 Arlington VA NaN% Unknown 83/100
81 22202 Arlington VA NaN% Unknown 83/100
82 22203 Arlington VA NaN% Unknown 83/100
83 22204 Arlington VA NaN% Unknown 67/100
84 22205 Arlington VA NaN% Unknown 83/100
85 22206 Arlington VA NaN% Unknown 67/100
86 22207 Arlington VA NaN% Unknown 83/100
87 22209 Arlington VA NaN% Unknown 83/100
88 22211 Fort Myer VA NaN% Unknown 83/100
89 22213 Arlington VA NaN% Unknown 83/100
90 22301 Alexandria VA NaN% Unknown —
91 22302 Alexandria VA NaN% Unknown —
92 22303 Alexandria VA NaN% Unknown 50/100
93 22304 Alexandria VA NaN% Unknown —
94 22305 Alexandria VA NaN% Unknown —
95 22306 Alexandria VA NaN% Unknown 50/100
96 22307 Alexandria VA NaN% Unknown 50/100
97 22308 Alexandria VA NaN% Unknown 50/100
98 22309 Alexandria VA NaN% Unknown 50/100
99 22310 Alexandria VA NaN% Unknown 50/100
100 22311 Alexandria VA NaN% Unknown 50/100

Methodology

Infrastructure risk rankings combine four data sources, each weighted equally (25%): (1) EPA Drinking Water Infrastructure Needs Survey (DWINS 2023) — state-level 20-year funding gap per capita for pipe replacement, treatment, and storage; (2) Census ACS housing vintage — percentage of homes built before 1980, when lead solder and galvanized pipes were common; (3) EPA SDWIS violation and enforcement data — system-level compliance history; (4) Lead and Copper Rule indicators — service line material inventories and 90th percentile lead testing results. The combined score is normalized to a 0-100% probability scale.

Data sources: EPA DWINS 2023, Census ACS, EPA SDWIS, Lead and Copper Rule data. Last updated: 2026-08-31.

Frequently Asked Questions

What does pipe failure probability mean?

Pipe failure probability estimates the likelihood of water main breaks, lead contamination from corroded pipes, or service disruptions based on infrastructure age, state funding gaps, violation history, and lead indicators. It is not a prediction of imminent failure, but a risk assessment based on known factors.

How is infrastructure risk calculated?

The risk score combines four equally weighted factors: state-level infrastructure funding gap per capita (from EPA DWINS 2023), housing vintage (Census ACS pre-1980 housing percentage), water system violation and enforcement history (EPA SDWIS), and lead exposure indicators (service line probability and testing results).

What can homeowners do about aging infrastructure?

Test your tap water annually, especially for lead. Check if your home has a lead service line through your water utility. Consider a whole-house water filter (NSF/ANSI 53 certified). Review your water system Consumer Confidence Report for violation history.

Does high risk mean my water is unsafe right now?

Not necessarily. Infrastructure risk indicates long-term vulnerability, not current contamination. However, areas with aging pipes and high violation counts have a statistically higher chance of water quality issues. Regular testing is the best way to verify your water safety.

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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