COUNTY REPORT PA

Allegheny County, Pennsylvania

182 ZIP codes · Avg score 55/100 · Grade C · Updated 2026-06-03

The systems supplying Allegheny County's 182 ZIP codes vary in performance — most meet minimum standards, but violations in select areas are on record.

How Allegheny County Compares

Allegheny County55/100
Pennsylvania avg55/100
National avg68/100

How Allegheny County Compares

C
County Grade
55/100
Avg Safety Score
182
ZIP Codes
49
Water Systems

Allegheny County scores 0 points above the Pennsylvania state average (55/100) and 13 points below the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-03

C
County Grade
55
Avg Safety Score
182
ZIP Codes
Brackenridge
Best ZIP: 15014 (70/100)
Braddock
Lowest ZIP: 15104 (34/100)
$181K
Median Home Value
$2,460
Avg Remediation (136% of home value)

ZIP Code Risk Map

Water Quality Map: Allegheny County, Pennsylvania

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Estimated additional annual cost per homeowner: $1,589, driven primarily by flood

Infrastructure: 0.472% avg pipe failure probability, 68% of ZIPs at high risk

82.7% of homes built before 1978 (lead paint era)

Violation History (2021–2026)

↓ Improving trend

EPA violation counts by year across Allegheny County water systems. Health-based shown in red, total in blue.

2021
19 (19 health)
2022
34 (34 health)
2023
7 (7 health)
2024
110 (110 health)
2025
62 (62 health)
2026
1 (1 health)

Peak year: 2024 with 110 violations. Past 5 years: 214 total (214 health-based). Health-based violations are declining versus the prior 2-year window.

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

Infrastructure Overview

1951
Median Build Year
82.7%
Pre-1978 Housing
47%
Pipe Failure Probability
68%
ZIPs at High Infra Risk
High
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,589

Flood $736/yr
Energy Code Gap $388/yr
Water / Lead $256/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

682,385 housing units in Allegheny County

Pre-1940 28%
1940–1959 27%
1960–1979 23%
1980–1999 13%
2000+ 10%

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 Allegheny County

$181K
Median Home Value
$2,460
Est. Remediation Cost
1.4%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Allegheny 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.

Water Systems with Most Violations

Top 5 systems in Allegheny County ranked by EPA violation count.

# Water System Population Violations
1 Robinson Twp Muni Authority 16,354 854
2 West View Water Authority 200,000 850
3 Plum Boro Muni Authority 27,500 841
4 Fox Chapel Authority 18,500 839
5 PITTSBURGH WATER & SEWER AUTH 520,000 836

49 total water systems serve Allegheny County.

All ZIP Codes in Allegheny County

182 ZIP codes tracked in Allegheny County.

# ZIP Code City Safety Score Grade Violations Home Value
1 15014 Brackenridge 70 B 1 $88K
2 15144 Springdale 70 B 0 $140K
3 15005 Baden 69 C 2 $208K
4 15204 Pittsburgh 69 C 11 (1 health) $110K
5 15206 Pittsburgh 69 C 11 (1 health) $288K
6 15208 Pittsburgh 69 C 11 (1 health) $273K
7 15211 Pittsburgh 69 C 11 (1 health) $207K
8 15214 Pittsburgh 69 C 11 (1 health) $174K
9 15216 Pittsburgh 69 C 11 (1 health) $194K
10 15218 Pittsburgh 69 C 11 (1 health) $203K
11 15224 Pittsburgh 69 C 11 (1 health) $241K
12 15232 Pittsburgh 69 C 11 (1 health) $522K
13 15233 Pittsburgh 69 C 11 (1 health) $306K
14 15243 Pittsburgh 69 C 11 (1 health) $271K
15 15278 Pittsburgh 69 C 11 (1 health) —
16 16503 Erie 69 C 24 (1 health) $55K
17 15110 Duquesne 67 C 11 (3 health) $58K
18 15044 Gibsonia 65 C 1 $373K
19 15230 Pittsburgh 65 C 11 (1 health) —
20 15231 Pittsburgh 65 C 11 (1 health) —
21 15240 Pittsburgh 65 C 11 (1 health) —
22 15242 Pittsburgh 65 C 11 (1 health) —
23 15244 Pittsburgh 65 C 11 (1 health) —
24 15250 Pittsburgh 65 C 11 (1 health) —
25 15251 Pittsburgh 65 C 11 (1 health) —
26 15252 Pittsburgh 65 C 11 (1 health) —
27 15253 Pittsburgh 65 C 11 (1 health) —
28 15254 Pittsburgh 65 C 11 (1 health) —
29 15255 Pittsburgh 65 C 11 (1 health) —
30 15257 Pittsburgh 65 C 11 (1 health) —
31 15258 Pittsburgh 65 C 11 (1 health) —
32 15259 Pittsburgh 65 C 11 (1 health) —
33 15260 Pittsburgh 65 C 11 (1 health) —
34 15261 Pittsburgh 65 C 11 (1 health) —
35 15263 Pittsburgh 65 C 11 (1 health) —
36 15264 Pittsburgh 65 C 11 (1 health) —
37 15265 Pittsburgh 65 C 11 (1 health) —
38 15267 Pittsburgh 65 C 11 (1 health) —
39 15268 Pittsburgh 65 C 11 (1 health) —
40 15270 Pittsburgh 65 C 11 (1 health) —
41 15272 Pittsburgh 65 C 11 (1 health) —
42 15273 Pittsburgh 65 C 11 (1 health) —
43 15274 Pittsburgh 65 C 11 (1 health) —
44 15275 Pittsburgh 65 C 11 (1 health) —
45 15276 Pittsburgh 65 C 11 (1 health) —
46 15277 Pittsburgh 65 C 11 (1 health) —
47 15279 Pittsburgh 65 C 11 (1 health) —
48 15281 Pittsburgh 65 C 11 (1 health) —
49 15282 Pittsburgh 65 C 11 (1 health) —
50 15283 Pittsburgh 65 C 11 (1 health) —
51 15286 Pittsburgh 65 C 11 (1 health) —
52 15289 Pittsburgh 65 C 11 (1 health) —
53 15290 Pittsburgh 65 C 11 (1 health) —
54 15295 Pittsburgh 65 C 11 (1 health) —
55 15146 Monroeville 64 C 1 (1 health) $198K
56 15201 Pittsburgh 64 C 11 (1 health) $257K
57 15202 Pittsburgh 64 C 11 (1 health) $198K
58 15203 Pittsburgh 64 C 11 (1 health) $252K
59 15210 Pittsburgh 64 C 11 (1 health) $92K
60 15213 Pittsburgh 64 C 11 (1 health) $248K
61 15217 Pittsburgh 64 C 11 (1 health) $432K
62 15219 Pittsburgh 64 C 11 (1 health) $193K
63 15220 Pittsburgh 64 C 11 (1 health) $216K
64 15221 Pittsburgh 64 C 11 (1 health) $157K
65 15225 Pittsburgh 64 C 11 (1 health) $166K
66 15226 Pittsburgh 64 C 11 (1 health) $175K
67 15227 Pittsburgh 64 C 11 (1 health) $175K
68 15228 Pittsburgh 64 C 11 (1 health) $363K
69 15229 Pittsburgh 64 C 11 (1 health) $232K
70 15239 Pittsburgh 64 C 11 (1 health) $215K
71 15241 Pittsburgh 64 C 11 (1 health) $390K
72 15056 Leetsdale 63 C 3 (2 health) $135K
73 15139 Oakmont 63 C 5 $318K
74 15065 Natrona Heights 62 C 9 (3 health) $147K
75 15049 Harwick 61 C 1 (1 health) $129K
76 15108 Coraopolis 59 C 2 $255K
77 15205 Pittsburgh 59 C 11 (1 health) $172K
78 15207 Pittsburgh 59 C 11 (1 health) $133K
79 15212 Pittsburgh 59 C 11 (1 health) $167K
80 15215 Pittsburgh 59 C 11 (1 health) $303K
81 15222 Pittsburgh 59 C 11 (1 health) $558K
82 15234 Pittsburgh 59 C 11 (1 health) $200K
83 15235 Pittsburgh 59 C 11 (1 health) $133K
84 15236 Pittsburgh 59 C 11 (1 health) $224K
85 15237 Pittsburgh 59 C 11 (1 health) $307K
86 15238 Pittsburgh 59 C 11 (1 health) $452K
87 16341 Pleasantville 59 C 22 (3 health) $110K
88 15071 Oakdale 58 C 16 (2 health) $249K
89 15084 Tarentum 58 C 22 (2 health) $112K
90 15101 Allison Park 58 C 2 $316K
91 15143 Sewickley 58 C 7 (1 health) $435K
92 15003 Ambridge 54 D 26 (5 health) $119K
93 15024 Cheswick 54 D 3 $217K
94 15209 Pittsburgh 54 D 11 (1 health) $218K
95 15223 Pittsburgh 54 D 11 (1 health) $155K
96 15006 Bairdford 53 D 0 —
97 15007 Bakerstown 53 D 0 —
98 15019 Bulger 53 D 0 $153K
99 15028 Coulters 53 D 0 $88K
100 15032 Curtisville 53 D 0 —
101 15034 Dravosburg 53 D 0 $98K
102 15038 Elrama 53 D 0 $92K
103 15045 Glassport 53 D 0 $82K
104 15046 Crescent 53 D 0 $182K
105 15047 Greenock 53 D 0 $123K
106 15051 Indianola 53 D 0 $158K
107 15053 Joffre 53 D 0 $171K
108 15055 Lawrence 53 D 0 $230K
109 15060 Midway 53 D 0 $124K
110 15075 Rural Ridge 53 D 0 —
111 15078 Slovan 53 D 0 $134K
112 15082 Sturgeon 53 D 0 $181K
113 15090 Wexford 53 D 0 $456K
114 15091 Wildwood 53 D 0 —
115 15112 East Pittsburgh 53 D 0 $89K
116 15133 Mckeesport 53 D 0 $89K
117 15134 Mckeesport 53 D 0 —
118 15347 Meadow Lands 53 D 0 $174K
119 15350 Muse 53 D 0 $72K
120 15363 Strabane 53 D 0 $170K
121 15619 Bovard 53 D 0 —
122 15623 Claridge 53 D 0 $193K
123 15624 Crabtree 53 D 0 —
124 15626 Delmont 53 D 0 $228K
125 15633 Forbes Road 53 D 0 $268K
126 15647 Larimer 53 D 0 —
127 15670 New Alexandria 53 D 0 $190K
128 15685 Southwest 53 D 0 —
129 15102 Bethel Park 48 D 5 $261K
130 15021 Burgettstown 45 D 0 $180K
131 15031 Cuddy 45 D 0 $114K
132 15064 Morgan 45 D 0 —
133 15076 Russellton 45 D 0 $137K
134 15085 Trafford 45 D 0 $194K
135 15120 Homestead 45 D 0 $119K
136 15122 West Mifflin 45 D 0 $131K
137 15126 Imperial 45 D 0 $215K
138 15129 South Park 45 D 0 $237K
139 15131 Mckeesport 45 D 0 $148K
140 15135 Mckeesport 45 D 0 $198K
141 15137 North Versailles 45 D 0 $115K
142 15142 Presto 45 D 0 $601K
143 15148 Wilmerding 45 D 0 $62K
144 15317 Canonsburg 45 D 0 $330K
145 15321 Cecil 45 D 0 $310K
146 15632 Export 45 D 0 $278K
147 15634 Grapeville 45 D 0 $93K
148 15636 Harrison City 45 D 0 $351K
149 15668 Murrysville 45 D 0 $315K
150 15675 Penn 45 D 0 $107K
151 15004 Atlasburg 40 D 0 $108K
152 15025 Clairton 40 D 0 $235K
153 15035 East Mc Keesport 40 D 0 $80K
154 15037 Elizabeth 40 D 0 $164K
155 15054 Langeloth 40 D 0 $137K
156 15057 Mc Donald 40 D 0 $331K
157 15088 West Elizabeth 40 D 0 $77K
158 15106 Carnegie 40 D 0 $191K
159 15116 Glenshaw 40 D 0 $251K
160 15123 West Mifflin 40 D 0 —
161 15127 Ingomar 40 D 0 —
162 15132 Mckeesport 40 D 0 $71K
163 15136 Mc Kees Rocks 40 D 0 $190K
164 15140 Pitcairn 40 D 0 $69K
165 15145 Turtle Creek 40 D 0 $98K
166 15147 Verona 40 D 0 $136K
167 15288 Carnegie 40 D 0 —
168 15332 Finleyville 40 D 0 $193K
169 15339 Hendersonville 40 D 0 —
170 15340 Hickory 40 D 0 $323K
171 15342 Houston 40 D 0 $251K
172 15361 Southview 40 D 0 $124K
173 15378 Westland 40 D 0 —
174 15615 Ardara 40 D 0 $136K
175 15635 Hannastown 40 D 0 —
176 15644 Jeannette 40 D 0 $160K
177 15662 Luxor 40 D 0 $113K
178 15664 Mammoth 40 D 0 —
179 15684 Slickville 40 D 0 $104K
180 15030 Creighton 38 F 6 (2 health) $79K
181 15017 Bridgeville 35 F 0 $239K
182 15104 Braddock 34 F 5 (3 health) $57K ⚠

Recommended Buyer Guides for Allegheny County

Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.

Overview

Allegheny County in Pennsylvania covers 182 ZIP codes with an average Home Safety Score of C (55/100).

97 of 182 ZIP codes have recorded EPA violations. 105 health-based violations have been documented.

← Back to Pennsylvania water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Allegheny County?
Allegheny County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Allegheny County?
Allegheny County is served by 49 public water systems that supply drinking water to residents across 182 ZIP codes.
What is the biggest environmental risk in Allegheny County?
The primary environmental risk factor in Allegheny County is flood. This contributes to an estimated additional annual cost of $1,589 per homeowner.
How old are homes in Allegheny County?
The median home build year in Allegheny County is 1951. 82.7% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Allegheny County compare to Pennsylvania?
Allegheny County has an average water safety score of 55/100, which is above the Pennsylvania state average of 55/100.

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