CITY REPORT CA

Mill Creek, CA Home Safety Data by ZIP

1 ZIP code · 0 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
0
Water Systems
N/A
ZIPs with Violations
Zone 3
Radon Risk (Low)

Key Facts for Mill Creek Residents

  • Homes built before 1986: 100% - older plumbing may contain lead solder.
  • CDC health risk index: 13.63 - above typical levels.

Overview

We track home safety data for 1 ZIP code in Mill Creek, California, covering 0 community water system serving approximately 38 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 Mill Creek.

Lead & Copper

  • Lead data: not yet available for Mill Creek
  • Lead action-level status: not available

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

All ZIP Codes in Mill Creek

Data Sources

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

Mill Creek Community Health Snapshot

10.7%
Asthma (US: 9.8%)
13%
Diabetes (US: 10.4%)
18.8%
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 10.7% ↑
Diabetes 13% ↑
Mental Health 18.8% ↑

Vertical line = national average. Above national · Below national

Mill Creek Infrastructure Age

1954
Median Build Year
100%
Built Before 1986
65%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 100% 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

For residents trying to assess tap water risk in Mill Creek, the median build year of 1954 is the starting context. It signals that a majority of homes were constructed before 1986 - the year federal rules prohibited lead solder in new plumbing - and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.

1954
Median Year Built
100%
Pre-1986 (Lead Paint Risk)
65%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (65%) 1970–1986 (35%) Post-1986 (0%)

Over half of homes in Mill Creek 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.

Mill Creek: Lead Risk & Vulnerable Populations

100%
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.

Before the federal solder ban, lead solder was a routine plumbing material, and 100% of the Mill Creek inventory was built in that earlier era - a share large enough to move household-level reads onto the standard list.

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

HomeCitiesCalifornia → Mill Creek, CA

How to cite this page

APA ZipCheckup. (2026). Mill Creek, CA Home Safety Data by ZIP. https://zipcheckup.com/cities/ca/mill-creek/
BibTeX
@misc{zipcheckup-cities-ca-mill-creek,
  author = {{ZipCheckup}},
  title  = {{Mill Creek, CA Home Safety Data by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/mill-creek/}
}

Page version: August 2026.

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