Mountain Lakes, New Hampshire Demographics & Population 2026

A note before these figures: with a population of 354, Mountain Lakes's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Mountain Lakes is a small community located in New Hampshire, within Grafton County. The total population is 354. It ranks as the 82nd most populous out of 100 Census-designated places in New Hampshire.

Age Demographics

The median age in Mountain Lakes is 56.5 years. This is 30% higher than the state median of 43.3 years. Only 13.8% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Mountain Lakes is $35,603. This is 64% lower than the state median of $99,031. It is also 56% lower than the national median of $80,734. The poverty rate stands at 16.4%. This is 126% higher than the state poverty rate of 7.2%. The survey records no unemployed residents in Mountain Lakes, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $264,800. Housing costs are 34% lower than the state median of $402,500. The home-value-to-income ratio of 7.4x suggests that housing affordability is a significant concern for many residents. 85.6% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 72.8%.

Race & Ethnicity

Mountain Lakes has a predominantly White (non-Hispanic) population, comprising 96.0% of all residents. Hispanic or Latino residents account for 0.9%. The Hispanic or Latino population (0.9%) is well below the state average of 4.7%.

Education

19.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 53% lower than the state rate of 40.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.9%.

Data Sources & Methodology

All demographic data for Mountain Lakes, New Hampshire is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New Hampshire state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 100 Census-designated places in New Hampshire. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.