CITY REPORT TX HEALTH VIOLATIONS: 59

Corpus Christi, TX: 59 Health-Based Violations Recorded for Mapped Water Systems - 89/100

37 ZIP codes · 8 water systems · Updated

ZipCheckup grade for Corpus Christi: A.

The model grade is high, but the records on this page include findings worth reviewing.

Your top priority: match a filter's certification to the violations (59 health-based violations). NSF certified filters →

Tap water system records for Corpus Christi, TX support a high grade on this site; review your own system's entries for specifics.

Data: EPA SDWIS, FEMA NFIP, Census ACS

37
ZIP Codes
8
Water Systems
18
ZIPs Linked to Systems with Violations
A · 89
Avg Safety Score
Zone 3
County Radon Potential (Low)

Key Facts for Corpus Christi Residents

  • Your city's water systems recorded 100 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0018 mg/L.

Water Quality in Corpus Christi

We track home safety signals for 37 ZIP codes in Corpus Christi, Texas. EPA community-water data is directly mapped for 18 ZIP codes and 8 water systems.

18 of 18 directly mapped ZIP records with reported violation counts (100%) have recorded EPA violations - 100 total, including 59 health-based violations.

Average Home Safety Score: A (89/100)

Water sources: Groundwater, Surface water.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Interim Enhanced Surface Water Treatment Rule Treatment Technique 34 17
Total Trihalomethanes (TTHM) Disinfection Byproducts 22 5
Public Notice Rule Reporting 11 5
Lead and Copper Rule Treatment Technique 9 5
Lead and Copper Rule Revisions Treatment Technique 8 4

Lead Risk

  • Average of reported 90th-percentile lead results: 0.0018 mg/L
  • 0 of 18 ZIP codes with known status exceed the EPA lead action level
  • 63% of housing built before 1986 (when lead solder was banned)
  • 11% of housing built before 1950 (when lead pipes were standard)
  • Median year built: 1973
  • Most common estimated pipe material: Copper
  • Lead exposure risk score: 41/100
  • Estimated lead service line probability: 19%
  • 10 ZIP codes classified as high or very high lead risk

With 63% of homes built before the 1986 lead solder ban, Corpus Christi residents - especially those in older neighborhoods - should consider testing their tap water for lead. Homes built before 1950 are at the highest risk of having lead service lines.

Housing Age Distribution

134,155 total housing units across 37 ZIP codes:

Era Units Share
Pre-1940 3,335 2%
1940–1949 8,326 6%
1950–1959 21,049 16%
1960–1969 14,206 11%
1970–1979 19,140 14%
1980–1989 22,603 17%
1990–1999 14,042 10%
2000–2009 15,997 12%
2010–2019 14,882 11%
2020+ 575 0%

Flood Risk

FEMA National Flood Insurance Program data for Corpus Christi:

  • 4,262 flood insurance claims on record
  • $37,407,242 sum of reported building, contents, and ICC payment components
  • 2,686 claims with payment data
  • 1,576 claims without reported payment fields
  • $13,927 average reported component sum among claims with payment data
  • Dominant rated-zone value in historical claims: C (other)
  • 10 of 27 ZIP codes with claim-zone records have an A/V-family dominant rated zone in those claims
  • Claim-zone values are historical insurance records, not a complete current FEMA property-map inventory

Radon Risk

37 of 37 ZIP records with known zones are in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Neighborhoods by Safety Score

Safest Areas

ZIP Code Safety Score Grade Violations
78419 91/100 A 1
78401 90/100 A 2
78402 90/100 A 2
78404 90/100 A 2
78405 90/100 A 2
78406 90/100 A 2
78407 90/100 A 2
78408 90/100 A 2
78409 90/100 A 2
78411 90/100 A 2

Areas Needing Attention

ZIP Code Safety Score Grade Violations
78410 76/100 B 27
78418 83/100 B 15
78415 88/100 A 11
78414 88/100 A 11
78413 88/100 A 11
78417 90/100 A 2
78416 90/100 A 2
78412 90/100 A 2

What Corpus Christi Residents Can Do

Test Your Water

  • Order a certified lab test - home test kits cost $20–50 and cover lead, bacteria, and common contaminants
  • Request your utility's CCR (Consumer Confidence Report) - your water provider must publish this annually
  • Check your ZIP code - each area in Corpus Christi has different water systems and risk levels

Filter Your Water

  • NSF-certified pitcher filter removes chlorine taste and some contaminants ($20–40)
  • NSF 53-certified filter for lead - recommended for homes built before 1986
  • Reverse osmosis system removes 95%+ of contaminants including lead, PFAS, and nitrates ($150–400)

Stay Informed

All ZIP Codes in Corpus Christi

Frequently Asked Questions

Is the tap water safe to drink in Corpus Christi, TX?

The Home Safety Score is not a drinking-water grade. Corpus Christi has an average score of 89/100 (grade A) across 18 ZIP codes with complete current-model evidence. Separately, there are 100 recorded EPA violations across 18 directly mapped ZIP records with reported counts, 59 of which are health-based. Check the specific ZIP and serving utility before drawing a water-safety conclusion.

Does Corpus Christi have lead in the water?

The average of the reported 90th-percentile lead results across the ZIP codes of Corpus Christi is 0.0018 mg/L, below the EPA action level of 0.015 mg/L. 0 of 18 ZIP codes with known action-level status are served by a system whose 90th-percentile lead result exceeded the EPA action level. About 63% of housing was built before 1986, when lead solder was banned.

Is Corpus Christi at risk for flooding?

FEMA data shows 4,262 flood insurance claim records in Corpus Christi ZIP codes, with an average reported building, contents, and ICC component sum of $13,927 among 2,686 claims with payment data. 1,576 claims lack reported payment fields and are not counted as zero. Among 27 ZIP codes with historical claim-zone values, 10 have an A/V-family dominant rated zone in those claims. Claim records do not establish current property-level flood risk; check the FEMA map for a specific address.

Are there lead pipes in Corpus Christi homes?

63% of Corpus Christi housing was built before 1986, when lead solder was common in plumbing. 11% was built before 1950, when lead pipes were standard. The most common estimated pipe material is Copper. The estimated probability of lead service lines is 19%. We recommend testing your water if your home was built before 1986.

What contaminants have been found in Corpus Christi water?

The most common contaminants by violation count are Fecal Coliform, Haloacetic Acids (HAA5), Lead and Copper Rule. Across 18 ZIP codes with directly mapped EPA water data, 18 have recorded EPA violations. Check your ZIP code report for the specific contaminants in your area.

Data Sources

Source reporting periods vary. See each cited source for its publication schedule.

Corpus Christi Infrastructure Age

1973
Median Build Year
Copper
Likely Pipe Material

Median build year of 1973 means many homes predate lead paint and lead solder regulations. Consider testing if your home has original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

1973
Median Year Built
N/A
Pre-1986 (lead solder era; lead paint banned 1978)
0%
Pre-1970 (Lead Pipes Risk)

Most homes in Corpus Christi were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Corpus Christi: Lead Risk & Vulnerable Populations

0.0018
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Available area-level lead records for Corpus Christi do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Corpus Christi: NFIP Claim Records and Water-Quality Context

4,262
Total FEMA Flood Claims
$13,927
Avg Reported Sum With Payment Data
37%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Corpus Christi contains 4,262 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,927. Among ZIP codes with claim records, 37% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Deep Dive Reports

Detailed analysis for Corpus Christi, TX

Frequently Asked Questions

What does the Home Safety Score mean for Corpus Christi, TX?
Corpus Christi has an average Home Safety Score of 89/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 100 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Corpus Christi?
EPA records list 100 EPA violations, including 59 health-based violations for Corpus Christi water systems. These water-system violations are shown for 37 mapped ZIP codes.
Does Corpus Christi water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Corpus Christi is 0.0018 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Corpus Christi?
Our records map 8 water systems to 37 ZIP codes in Corpus Christi. The related population figure in our data is approximately 318,904 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). Corpus Christi, TX: 59 Health-Based Violations Recorded for Mapped Water Systems - 89/100. https://zipcheckup.com/cities/tx/corpus-christi/
BibTeX 
@misc{zipcheckup-cities-tx-corpus-christi,
  author = {{ZipCheckup}},
  title  = {{Corpus Christi, TX: 59 Health-Based Violations Recorded for Mapped Water Systems - 89/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/tx/corpus-christi/}
}

Page version: October 2026.

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