148 years in pictures
Census counts: 482 in 2000, 421 in 2020. The archive holds 1 old photo or paper and 3 maps from 1911 on.
- 1878Lyon Mountain is settled
Each edition grades its towns against each other only.
The town was settled in 1878 and has 312 residents today.
Lyon Mountain’s July high is 74°F, below both New York’s towns (81°F) and U.S. towns (85°F). Of the 266 New York towns we compare, none has a lower typical home value than Lyon Mountain. 24% of the land in Lyon Mountain is conserved, above both the New York town median (5.2%) and the median of U.S. towns (4.3%). The biggest place to walk is Chazy Highlands State Forest, 1,149 acres with 3 miles of trail. Lyon Mountain has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Where Lyon Mountain beats most towns.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 482 in 2000, 421 in 2020. The archive holds 1 old photo or paper and 3 maps from 1911 on.
Lyon Mountain is unincorporated, so Clinton County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.
Ordered by what stands out in Lyon Mountain.
The typical Lyon Mountain home is worth about $70,000, up 6.5% in a year, 87% below the New York typical home. For households here, the share who live in a home they own is 68%.
| Lyon Mountain | New York towns | U.S. towns | |
|---|---|---|---|
| Median rent | $682 a month | $1,101 a month | $1,185 a month |
| Households that own their home | 68% | 75% | 73% |
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
Most working residents leave Lyon Mountain for work: only 9% work in town. Between 2013 and 2023, jobs here rose by 881, to 919. In Lyon Mountain, 14% of residents live below the poverty line. The top destinations are Plattsburgh (15%), Plattsburgh (11%) and Dannemora (10%).
| Lyon Mountain | New York towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 32 minutes | 25 minutes | 25 minutes |
| Below the poverty line | 14% | 9.5% | 9.6% |
Census LEHD 2023 · ACS
Trails run 11 miles in 1 park or preserve. Lyon Mountain’s trail network density stands at 1.1 miles per square mile.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Chazy Highlands State Forest | 3 mi | 1,149 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Winters in Lyon Mountain are cold, snowy and summers cool.
NOAA U.S. Climate Normals, 1991–2020
No town among the 756 in New York we compare has a higher share of adults who have diabetes than Lyon Mountain. CDC measures, 32 in all: Lyon Mountain beats New York on 2 and trails on 18. Only 3 of the 756 New York towns we compare have a higher share of adults who have high blood pressure than Lyon Mountain. Also worth knowing: among adults locally, 19% report frequent physical distress.
| Lyon Mountain | New York towns | U.S. towns | |
|---|---|---|---|
| Frequent physical distress (CDC PLACES) | 19% | 14% | 14% |
| Get no exercise (CDC PLACES) | 36% | 25% | 25% |
| Fair or poor health (CDC PLACES) | 27% | 17% | 19% |
| Smoke cigarettes (CDC PLACES) | 20% | 13% | 14% |
| What stands out | Lyon Mountain | NY |
|---|---|---|
| Fewer binge drinkers | 13.3% | 16.3% |
| More adults treating high blood pressure | 81.4% | 77.2% |
| More adults with COPD | 12.9% | 6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Of the losses FEMA expects here, 75% come from inland flooding and 9% from earthquakes. Lyon Mountain’s FEMA risk score is 45 of 100. Expected storm and flood damage is lower than in 55% of U.S. communities.
FEMA National Risk Index · OpenFEMA
None within 15 miles of Lyon Mountain; the nearest are
About 0 of every 100 Lyon Mountain residents are enrolled in college, against 7 across New York.
Where Lyon Mountain’s working residents go each day. Line width shows the share.
Census LEHD 2023
Census-designated place & hamlet in New York, United States
Lyon Mountain is a hamlet and census-designated place located in the town of Dannemora in Clinton County, New York, United States. As of the 2020 census, Lyon Mountain had a population of 421. The northern slopes of Lyon Mountain are in the southern part of the community, with the 3,840-foot (1,170 m) summit to the south in the town of Saranac. The Lyon Mountain Correctional Facility, a minimum security prison, was located in the community. The facility closed in 2011, and has been purchased by a Canadian who has mined sand for hydrofracking from the site.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Lyon Mountain has fewer than 1,000 residents, too few for fair grades; the figures below are still real.