CITY REPORT IL

San Jose, IL Water - Home Safety Score unavailable

1 ZIP code · 0 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
0
Water Systems
N/A
ZIPs with Violations
Zone 1
Radon Risk (High)
$74K
Median Home Value
$1,200
Est. Remediation (1.6% of home value)

San Jose Water: The Quick Version

  • Homes built before 1986: 92% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 14.67 - above typical levels.

Overview

We track home safety data for 1 ZIP code in San Jose, Illinois, covering 0 community water system serving approximately 745 people. The EPA snapshots used for this build directly map water systems to 0 of 1 ZIP codes.

EPA water-system violation data is unavailable in the dataset used for this page for the tracked ZIP codes in San Jose.

Lead & Copper

  • Lead data: not yet available for San Jose
  • Lead action-level status: not available

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

All ZIP Codes in San Jose

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for San Jose

10.5%
Asthma (US: 9.8%)
13.3%
Diabetes (US: 10.4%)
17.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.5% ↑
Diabetes 13.3% ↑
Mental Health 17.2% ↑

Vertical line = national average. Above national · Below national

How Old Is San Jose's Housing Stock?

1941
Median Build Year
92%
Built Before 1986
60%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 92% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

What does a median build year of 1941 mean for water safety in San Jose? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used - making plumbing age a central variable in household-level lead risk across much of the city.

1941
Median Year Built
92%
Pre-1986 (Lead Paint Risk)
60%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (60%) 1970–1986 (32%) Post-1986 (8%)

Over half of homes in San Jose were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

San Jose: Remediation Cost in Perspective

Given current San Jose property values, the remediation share falls in the moderate tier - an indicator that the household financial perspective here calls for advance planning rather than dismissal, with most homeowners positioned to address documented issues through deliberate budgeting rather than needing to treat remediation as a significant equity event or financial emergency.

Median Home Value
$74,400
Est. Remediation
$1,200
Remediation as % of home value 1.6%

Remediation costs are moderate relative to home values in San Jose. The estimated $800–$1,500 range is manageable for most homeowners but still worth budgeting for. Home values are 60% below the Illinois average.

Protecting Children from Lead in San Jose

92%
Homes Built Before 1986

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If 92% of the San Jose inventory comes from before the federal ban on lead-bearing solder - and if utility samples sit at or near 0.015 mg/L - the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.

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

Frequently Asked Questions

How much does it cost to fix water issues in San Jose?
Estimated remediation costs in San Jose average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → San Jose, IL

How to cite this page

APA ZipCheckup. (2026). San Jose, IL Water - Home Safety Score unavailable. https://zipcheckup.com/cities/il/san-jose/
BibTeX
@misc{zipcheckup-cities-il-san-jose,
  author = {{ZipCheckup}},
  title  = {{San Jose, IL Water - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/san-jose/}
}

Page version: August 2026.

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