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#3,143 Top 100 Least Distressed Counties · County Distress Index · 2026

The Hill

Los Alamos County, New Mexico

Healthy CDI Score 11.37 · 3,143rd of 3,144 nationally · 19,444 people How the CDI is calculated →

· Annual refresh · next update early 2027

The main security gate to Project Y at Los Alamos, New Mexico, 1943. The checkpoint where the outside world ended and The Hill began.
The main gate to Project Y, 1943. Every scientist, every worker, every delivery entered through this checkpoint. The Hill began here. Los Alamos National Laboratory

The second-least distressed of 3,144 counties. Twenty miles downhill, child poverty is in the 85th percentile. Prosperity doesn’t descend.

What the CDI Says About Los Alamos County

  • 2nd-least distressed county in America on the American Default Research County Distress Index (CDI) — Los Alamos ranks 3,143rd of 3,144 counties scored, with a CDI of 11.37 and every domain at or near the 5th percentile.
  • $146,208 median household income, 3.8% poverty rate, 1.8% unemployment. LANL's FY2025 budget reached $5.28 billion — $2.04 billion of it paid out as salary across 16,487 workers in a county of 19,444 residents.
  • 3 bankruptcy filings in the entire county last year. Debt in collections: 6.43%. Credit card delinquency: 1.39%. Student loan delinquency: 3.64%. The numbers read like a test calibration.
  • Twenty miles downhill, the pattern inverts. Rio Arriba County (Espanola) scores 48.22 with child poverty at the 85th percentile and student loan delinquency at the 97th. The Guardian documented one of the largest wealth gaps between neighboring counties in America.
  • The paradox: the lowest financial distress in the country coexists with a chromium plume a mile long migrating toward San Ildefonso Pueblo sacred land, 13 homes for sale countywide in December 2022, and a housing market the lab's own exit interviews call the #2 reason employees leave.
Los Alamos County, New Mexico is the 2nd-least distressed county in America on the County Distress Index. Median household income $146,208. Twenty miles downhill in Rio Arriba, child poverty sits at the 85th percentile.
American Default Research · americandefault.org/counties/new-mexico/los-alamos-county-nm/
Ross Kilburn

Los Alamos is the first time I've sat with a county at the absolute floor of the ranking and felt not relief but something closer to vertigo. A score of 11.37 draws a boundary around who counts. It does not draw a boundary around consequence.

Ross Kilburn, Founder & Lead Analyst
American Default Research · 1,000+ short sales negotiated · Author, The Ark Law Group Complete Guide to Short Sales (Auroch Press, 2013)

The town that didn't appear on maps

In the 1940s, babies born here had "P.O. Box 1663, Santa Fe, N.M." listed as their birthplace. The town didn't appear on maps. Sears delivery men got suspicious when orders for a dozen baby bassinets arrived at a single post office box. Residents needed security clearance — including children.

The gates came down in 1957. The fence around the laboratory pulled back, the town opened to the public, and Los Alamos became a place you could visit. But the selection mechanism that built it never really changed. You don't move to a mesa at 7,320 feet in northern New Mexico by accident. You move because Los Alamos National Laboratory offered you a position, and you had the clearance and the credentials to accept it.

The scientists who built the bomb called it "The Hill." They meant the mesa. They also meant everything the mesa implied — separation, altitude, a world apart. Eighty years later, the name still fits.

The arithmetic of a company town

LANL's budget in fiscal year 2025 reached $5.28 billion. The laboratory employs 16,487 regular workers who earned $2.04 billion in salaries. The county has 19,444 residents. Do that arithmetic slowly.

About 6,000 of those employees live in Los Alamos County. The rest — more than 65% — commute up the canyon road each morning and back down each evening. Ten thousand people drive onto the mesa every workday to sustain an economy that produces a median household income of $146,208, a poverty rate of 3.8%, and an unemployment rate of 1.8%.

The County Distress Index score is 11.37. That is the second-lowest of 3,144 counties in the United States.

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A score that reads like a test calibration

Most of the counties at the bottom of this index are places I can read quickly. The score is low, the explanations are legible, the data confirms a functioning local economy. Los Alamos is the first time I've sat with a county at the absolute floor of the ranking and felt not relief but something closer to vertigo.

Every domain is at or near the 5th percentile. Debt in collections: 6.43%. Credit card delinquency: 1.39%. Student loan delinquency: 3.64%. Uninsured rate: 3.4%. Child poverty: 3.4%. The numbers read like a test calibration, some idealized dataset a graduate student would use to validate a model. There were three bankruptcy filings in the entire county last year. Three.

One metric breaks the pattern. Business formation rate sits at the 72nd percentile. In a county where the average annual salary is $113,944 and the employer is functionally singular, people don't start businesses. Why would they? The lab provides. That outlier is the statistical fingerprint of the company town.

Twenty miles downhill, the pattern inverts

TaraShea Nesbit wrote her novel The Wives of Los Alamos entirely in first-person plural. In interviews, she explained that Los Alamos women would "quickly move into the 'we' point of view" — "We all had these stoves named Black Beauty that were really a pain. We all were fighting the military to not extend the firing range." The collective voice was the literary form of a place where everyone worked for the same institution, lived behind the same fence, shared the same classified secret. There was no "I" in a town that couldn't admit it existed.

A CDI of 11.37 is the statistical equivalent of first-person plural. Uniform incomes, uniform employer, uniform security apparatus. The score isn't wrong. It measures what it measures — the material conditions of the people who live on the mesa. And those conditions are, by every indicator this index tracks, extraordinary.

But drive twenty miles down the canyon road to Espanola in Rio Arriba County and the CDI is 48.22. Elevated. Child poverty at the 85th percentile nationally. Student loan delinquency at the 97th. The Guardian reported in 2016 that Census data showed one of the largest wealth gaps between neighboring counties in America. You can see the mesa from parts of Espanola. The Hill is right there.

The prosperity doesn't descend. In fiscal year 2017, LANL's presence cost Rio Arriba County $3.2 million while providing Los Alamos County $11.6 million. The lab's own construction consumes the limited labor pool in northern New Mexico, drawing workers who might build housing elsewhere. As of December 2022, there were exactly 13 homes for sale in Los Alamos. Average home prices climbed from $299,000 in 2017 to $502,000 in 2022. Housing is the number two reason employees leave, according to LANL's own exit interviews — not because people can't afford the mortgage, but because there is nothing to buy.

What flows downhill is not money

What flows downhill is not money.

Between 1956 and 1972, scientists released water used to cool laboratory towers into Sandia Canyon. The potassium dichromate used to prevent corrosion left a chromium plume — a mile long, half a mile wide, 100 feet deep — migrating underground from the lab toward San Ildefonso Pueblo sacred land. Governor James Mountain of San Ildefonso put it plainly: "Our people don't understand. They think that because we are contaminated we're going to die tomorrow. It might sound extreme but if you come up here to the Sacred Area to hunt, to gather, to collect... I don't think it's overstated."

The land that became Los Alamos was taken from Hispanic and Native American settlers in 1943 under eminent domain, with what one account calls "derisory indemnities." The contamination is heading back toward the people the land was taken from. A CDI of 11.37 draws a boundary around who counts. It does not draw a boundary around consequence.

Greg Mello, director of the Los Alamos Study Group, offered a sentence that has stayed with me: "For some time Los Alamosans have seemed numbed out, very involved in superficial activities but there is a very big hole in the middle where thoughtful discourse might live."

The design, and the cost

The county that scores lowest on financial distress is simultaneously experiencing a housing crisis, safety violations at its plutonium facility, and an expanding contamination footprint on indigenous land. The Hill is growing. LANL's fiscal year 2026 budget request is $6 billion — a 17% increase, with nuclear weapons activities climbing to 84% of the lab's total mission. The first plutonium pit for the W87-1 warhead was produced in October 2024. A February 2026 federal memo proposed doubling production to 60 pits per year. NBC News called this "the nation's most ambitious nuclear weapons effort since World War II."

I don't know what this means for the CDI. More federal employees earning six figures should push the score even lower, which seems impossible. But more commuters on a two-lane canyon road, more pressure on a housing market with single-digit inventory, more construction labor diverted to lab facilities instead of housing — these are pressures the index wasn't built to see. Watch housing permits against hiring pace. Watch the chromium plume's path toward San Ildefonso. Watch whether the science budget — cut 14% in the current proposal while weapons climb 24% — changes what kind of hill this becomes. Los Alamos is the place where the American economy works exactly as designed, for exactly the people it was designed for, on land that was taken to make it possible. A score of 11.37 measures the design. It does not measure the cost.

Los Alamos County Across the CDI's Five Domains

The CDI measures five domains of financial distress. Los Alamos County scores at or near the 5th percentile in every domain. The only metric above the 30th percentile in the entire profile is business formation rate — at the 72nd percentile, it's the statistical fingerprint of a company town where one employer provides everything.

Economic Vitality Primary driver 24.7
Weight 9.2% · Rank 2,893 of 3,144 · Percentile 8.0
Housing Cost Burden 15.2
Weight 22.3% · Rank 2,959 of 3,144 · Percentile 5.9
Consumer Credit Distress 9.8
Weight 47.5% · Rank 3,071 of 3,144 · Percentile 2.3
Structural Poverty 5.2
Weight 13.6% · Rank 3,119 of 3,144 · Percentile 0.8
Legal Distress 5.0
Weight 7.4% · Rank 3,052 of 3,144 · Percentile 3.0
Methodology & Weights

The County Distress Index uses principal component analysis to derive five factors from 21 indicators across 3,144 U.S. counties. Weights are proportional to each factor's share of explained variance.

Consumer Credit Distress 47.5%
Housing Cost Burden 22.3%
Structural Poverty 13.6%
Economic Vitality 9.2%
Legal Distress 7.4%

For Press & Research

Everything you need to cite Los Alamos County data — in under 60 seconds.

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The Indicators Behind Los Alamos County's CDI Score

Every number on this page traces to a public source. Full dataset available for download. Hover any metric name for its definition.

Metric Value Source
CDI Score 11.4 / 100 (Healthy) CDI
National Rank 3,143 / 3,144 (second-least distressed) CDI
Economic Vitality 24.7 / 100 CDI
Business formation rate (percentile) 72nd (only metric above 30th) CDI / Census BFS
Unemployment Rate 1.8% BLS LAUS Dec 2025
Median Household Income $146,208 (2.86× NM median) Census SAIPE 2023
Poverty Rate 3.8% Census SAIPE 2023
Debt in Collections 6.43% Urban Institute 2024
LANL budget (FY 2025) $5.28 billion Los Alamos Reporter
LANL employees 16,487 Los Alamos Reporter
Average home price (2022) $502,000 (up 68% from $299K in 2017) Boomtown Los Alamos
Chromium contamination plume 1 mi × 0.5 mi × 100 ft deep LA Daily Post
Adjacent county gap (Rio Arriba) +36.9 points (CDI 48.2 vs. 11.4) CDI
Data compiled April 17, 2026 from Urban Institute (Equifax debt panel), U.S. Census Bureau (ACS, SAIPE), Bureau of Labor Statistics (LAUS, QCEW), U.S. Courts Administrative Office (F-5A bankruptcy filings), and HUD Fair Market Rents.

Questions About Los Alamos County's CDI Score

What is Los Alamos County's CDI score?

Los Alamos County scores 11.37 (Healthy zone) on the County Distress Index, ranking 3,143rd most distressed of 3,144 U.S. counties and 33rd of 33 counties in New Mexico.

What drives distress in Los Alamos County?

Los Alamos County's primary driver is Economic Vitality, where the county scores 24.7 out of 100. The CDI uses PCA-weighted composite scoring across five domains; see the CDI methodology for the full factor weights and indicator list.

Where does Los Alamos County sit on the national percentile?

Los Alamos County's CDI score of 11.37 puts it at the 0.0th percentile nationally — more distressed than roughly 0% of U.S. counties. See the full CDI methodology for how percentile ranks translate into the Healthy zone.

How often is Los Alamos County's CDI score updated?

Annually, aligned to Census American Community Survey and Urban Institute Debt in America release windows. Current data was compiled from releases in early 2026; next refresh is scheduled for early 2027.

What is the distress score for Los Alamos County, New Mexico?

Los Alamos County has a County Distress Index score of 11.4 out of 100, placing it in the Healthy zone. It ranks 3,143rd nationally out of 3,144 counties and 33rd in New Mexico out of 33 counties.

What drives financial distress in Los Alamos County?

The primary driver of distress in Los Alamos County is Economic Vitality, where the county scores 24.7 out of 100. This domain is measured by indicators including Wage-to-Rent Ratio, Rent-to-Income Ratio, Business Formation Rate.

How does Los Alamos County compare to neighboring counties?

Los Alamos County (11.4) can be compared to its 3 neighboring counties: Sandoval County, NM (50.4); Rio Arriba County, NM (48.2); Santa Fe County, NM (45.9).

How is the County Distress Index calculated?

The County Distress Index uses PCA-weighted percentile scoring across five statistically derived factors: Consumer Credit Distress (47.5%), Housing Cost Burden (22.3%), Structural Poverty (13.6%), Economic Vitality (9.2%), and Legal Distress (7.4%). Each county's indicators are ranked against all 3,144 U.S. counties. A score of 50 means the county is at the national median; higher scores indicate greater distress.

Ross Kilburn
Written by

Ross Kilburn, Founder

American Default Research · Seattle, Washington

Two decades working directly with financially distressed American households — from property preservation in 2003, to negotiating over 1,000 short sales during the Great Recession, to foreclosure defense marketing today. Author, The Ark Law Group Complete Guide to Short Sales (Auroch Press, 2013). Twice named to Puget Sound Business Journal Fast 50 for Ark Law Group. B.A., University of California, Berkeley, 1992. Founded American Default Research in 2026 to fill a gap in public data that had been empty since 2013.

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