The Ladera Demon

Ladera Ranch · Orange County, California

The Ladera Demon

A neighbor-run watch for the community's health

People around Ladera Ranch have been comparing notes — about a cluster of rare childhood cancers, and about a broader feeling of getting sick here. This is a calm, central place to see what's actually confirmed, add what you're seeing to a community map, talk it through, and push the questions to the people who can investigate them.

What this is

A resident information hub. A place to gather observations, share verified facts, and organize toward a real health-agency review.

What this isn't

Not a medical authority and not proof of a cluster. Map entries are self-reported, not confirmed cases — and this site names no cause and blames no business.

Add to the map See what's confirmed Report it to health officials

The cases over time

Reported rare-cancer dates, 2000–2026
Ewing sarcoma reported Other rare cancer reported Community / official milestone

Circles mark dates from public reporting and community accounts. Amber = reported Ewing sarcoma diagnoses (around four near 2013, plus 2023 and 2024 — at least six since 2013). Violet = other rare cancers neighbors have reported. No names are shown. A true cluster usually involves a single cancer type, so a mix of different cancers is harder to attribute to one cause — which is exactly why residents are asking for a formal, expert review rather than drawing conclusions here.

The community map

Self-reported observations from neighbors
Read this before you read the map. Every pin is entered by a person, not verified by anyone. More pins in an area mostly means more people reported there — not that illness is proven higher there. A map like this can raise good questions, but it cannot establish a cancer cluster. Only a health agency working from the cancer registry (with the full population as a denominator) can do that. Use this to organize — then send it to the people in Take action.

Add an observation

Tap the map to drop your general location, then fill this in. Please pick a block — never an exact address.

No spot chosen yet — tap the map.

Shared with the community once submitted.

Reference layers

Things neighbors have asked to see mapped. These are context, not identified causes. An administrator adds verified locations.

Cancer Illness Watching

What's actually known

Confirmed reporting, kept separate from theories
6+
children in Ladera Ranch that families say have been diagnosed with Ewing sarcoma since 2013
~200
Ewing sarcoma diagnoses in U.S. children & teens per year — it's about 1 in a million
Review
OC health officials found no clear pattern initially, and plan a second review of the data

What's confirmed

  • Families in Ladera Ranch report that at least six children have been diagnosed with Ewing sarcoma — a rare bone and soft-tissue cancer — with cases going back to 2013. Importantly, these are diagnoses, not deaths: current news coverage identifies one of the six, 17-year-old Brody Matteson, as having died in 2026.
  • Parents organized and met with the Ladera Ranch HOA in July 2026 to push for transparency on landscaping and pesticide practices, and say the HOA agreed to work toward an action plan.
  • The Orange County Health Care Agency says its initial review of available cancer data did not find a particular pattern, but that it plans another review in the coming weeks given continued concern.
  • A resident group, Non-Toxic Ladera Ranch, is pushing for integrated pest management — and is careful to say it is not claiming pesticides caused any illness.

Reported by NBC Los Angeles and others, July 2026.

What's still an open question

  • Whether these cases are a true statistical "cluster" is not established. Because Ewing sarcoma is so rare, even a handful of cases in one town can be alarming without being statistically unusual — that's a call only a registry-based analysis can make.
  • No cause has been identified. Research linking pesticides or air pollution to Ewing sarcoma is suggestive but unproven; there's no established causal link.
  • Power lines and cell towers come up often. Electromagnetic fields have been studied extensively and no clear cancer link has been established — worth logging, but not the strongest lead.
  • Historically, most reported cancer clusters that get investigated turn out not to be confirmed. That's not a reason to stop asking — it's a reason to get a rigorous review rather than relying on a map like this one.

See CDC & American Cancer Society guidance on cancer clusters, linked under Take action.

Turn concern into a real review

The part that can actually produce answers

A community map raises questions. What answers them is a formal report to the agencies that hold the verified cancer data and can compare Ladera's numbers against the expected rate. Anyone can start this — and the more people who file, the harder it is to ignore.

Step 01

Report to the county

The OC Health Care Agency is the first responder for suspected cancer clusters. Give them the cases, cancer type, ages, and how long people lived here.

OC Health Care Agency →
Step 02

Notify the state registry

The California Cancer Registry holds the incidence data used to confirm or rule out a cluster. They handle community cancer concerns directly.

California Cancer Registry →
Step 03

Learn how clusters work

Understanding what does and doesn't count as a cluster makes your report stronger and your expectations realistic.

CDC cancer cluster guide →
CDC-INFOGeneral questions on cancer and the environment · 1-800-232-4636
Report pesticide misuse in CaliforniaThe County Agricultural Commissioner and CA Dept. of Pesticide Regulation handle spray complaints and records requests.

Send a letter in 60 seconds

Pre-written, ready to send

Officials weigh real emails from real constituents far more than a petition signature. Add your name, pick a recipient, and it opens in your email app ready to send — or copy the text and edit it first. Every letter is measured, factual, and names no cause.

The letters are written in English so county staff can read and act on them right away.

Stay informed

Get updates when there's real news

No spam and no daily digest — just an email when the county responds, a meeting is scheduled, or something concrete happens. One-click unsubscribe, anytime.

We only use this to email updates about Ladera Ranch. We never share or sell it.

Neighbor discussion

Keep it factual and kind — real families are reading

Comments are read by a moderator before they appear.

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Common questions

Plain answers, with sources
What is Ewing sarcoma?+
A rare cancer of the bone or the soft tissue around it, mostly affecting children, teens, and young adults. It's very uncommon — only about 200 people under 20 are diagnosed in the U.S. each year, roughly one in a million. Its cause isn't understood and it isn't inherited; it comes from a genetic change that happens after conception. Early signs can include persistent bone pain or swelling.
What's a "cancer cluster," and is Ladera Ranch one?+
A cancer cluster is a greater-than-expected number of the same or related cancers, in one area, over one period of time. Whether Ladera Ranch meets that bar is not established. Because Ewing sarcoma is so rare, even a few cases can feel alarming without being statistically unusual — only a registry-based analysis that compares our cases against the expected number can say. Most reported clusters that get investigated turn out not to be confirmed.
Do pesticides cause this?+
No causal link has been proven. Some studies suggest environmental exposures such as pesticides are worth investigating, but "worth investigating" is not the same as "proven to cause." This site asks for transparency and a rigorous review — it does not claim that any product or place caused any illness.
What about power lines and cell towers?+
Electromagnetic fields from power lines and cell towers have been studied extensively for decades, and no clear link to cancer has been established. It's fine to note these on the map as questions residents have, but they aren't the strongest lead, and chasing them can distract from getting a proper review.
Can this map prove there's a problem?+
No — and it isn't meant to. Every pin is self-reported and unverified, and there's no "denominator" (the healthy people who never report). A map like this is for organizing neighbors and showing officials there's real concern. The proof, either way, has to come from a health agency working with the cancer registry.
What can I actually do right now?+
Three things that matter: report your concern to the OC Health Care Agency and the California Cancer Registry (see Take action); send a letter to the county using the tool on this page; and sign up for updates so you hear the moment there's real news. You can also ask the HOA for its landscaping and pesticide records.
Is my information private?+
The map only asks for a general block, never an exact address, and you can skip any field. Please don't post other people's names or medical details in comments — those are read by a moderator first. Nothing here is medical advice; for health questions, talk to a doctor.

Support resources

For the families, and for anyone who needs it

In crisis or overwhelmed

If you're struggling — with grief, fear, or anything else — you don't have to face it alone. The 988 Suicide & Crisis Lifeline is free, confidential, and available 24/7.

Call or text 988988lifeline.org

Pediatric cancer care nearby

Orange County has specialists who treat childhood sarcomas, including CHOC and UCI Health's sarcoma team.

CHOCUCI sarcoma: 714-456-5651

Childhood cancer support

Alex's Lemonade Stand Foundation and the Sarcoma Foundation of America offer information, community, and resources for families facing sarcoma.

Alex's Lemonade

Help for families

Ronald McDonald House Charities of Southern California supports families with a child in treatment, and Alex's Lemonade runs financial-assistance programs for travel and expenses.

Family assistance

Grief support

Losing a child is its own kind of loss. Local hospice and grief-support groups can help families and neighbors carry it — ask CHOC or your care team for a referral.

Talk through your options

The American Cancer Society's 24/7 line answers questions about diagnosis, treatment, and support.

1-800-227-2345cancer.org

News & updates

Coverage and official notices, pulled automatically

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