CITY REPORT CA

Round Mountain, 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)
$277K
Median Home Value

Round Mountain Water: The Quick Version

  • Homes built before 1986: 44% - older plumbing may contain lead solder.
  • CDC health risk index: 13 - above typical levels.

Overview

We track home safety data for 1 ZIP code in Round Mountain, California, covering 0 community water system serving approximately 760 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 Round Mountain.

Lead & Copper

  • Lead data: not yet available for Round Mountain
  • Lead action-level status: not available

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

All ZIP Codes in Round Mountain

Data Sources

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

CDC Health Data for Round Mountain

10.8%
Asthma (US: 9.8%)
11.7%
Diabetes (US: 10.4%)
18.6%
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 10.8% ↑
Diabetes 11.7% ↑
Mental Health 18.6% ↑

Vertical line = national average. Above national · Below national

How Old Is Round Mountain's Housing Stock?

1980
Median Build Year
44%
Built Before 1986
12%
Built Before 1970
Copper
Likely Pipe Material

With 44% 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

When trying to understand water quality at the household level, the year a home was built often matters more than any city-wide water report. That's because the 1986 federal ban on lead solder in plumbing, and the earlier phase-out of lead pipes before 1970, created sharp discontinuities in residential plumbing risk by construction era. Round Mountain's median build year of 1980 puts the city in the transition zone: a substantial share of the housing stock postdates the solder ban, but a comparable fraction predates it - with the oldest homes carrying both the solder risk and the pipe risk simultaneously. Whether any individual household sits on the safer or riskier side of these thresholds is the key question, and it's one the city-wide median alone can't answer.

1980
Median Year Built
44%
Pre-1986 (Lead Paint Risk)
12%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (12%) 1970–1986 (32%) Post-1986 (56%)

Most homes in Round Mountain were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Protecting Children from Lead in Round Mountain

44%
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.

Despite citywide averages serving as the standard public reference point, those aggregates cannot resolve what is happening at one specific faucet - and where 44% of Round Mountain homes come from before the solder rule or where utility samples sit at or above the action mark, the gap between system data and faucet reality matters more than it does in lower-exposure communities. An in-home draw closes that gap, with certified filtration through retailer networks available where confirmed faucet results warrant additional measures.

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

HomeCitiesCalifornia → Round Mountain, CA

How to cite this page

APA ZipCheckup. (2026). Round Mountain, CA Home Safety Data by ZIP. https://zipcheckup.com/cities/ca/round-mountain/
BibTeX
@misc{zipcheckup-cities-ca-round-mountain,
  author = {{ZipCheckup}},
  title  = {{Round Mountain, CA Home Safety Data by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/round-mountain/}
}

Page version: August 2026.

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