Loudon, New Hampshire Demographics & Population 2026

A note before these figures: with a population of 614, Loudon'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

Loudon is a small community located in New Hampshire, within Merrimack County. The total population is 614. It ranks as the 74th most populous out of 100 Census-designated places in New Hampshire.

Age Demographics

The median age in Loudon is 72.9 years. This is 68% higher than the state median of 43.3 years. Only 4.2% of residents are under 18, indicating fewer families with children. 32.4% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Loudon is $106,486. This is 8% higher than the state median of $99,031. It is also 32% higher than the national median of $80,734. The poverty rate stands at 5.4%. This is 26% lower than the state poverty rate of 7.2%. The survey records no unemployed residents in Loudon, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $410,200. Housing costs are 2% higher than the state median of $402,500. The home-value-to-income ratio is 3.9x. 82.9% of occupied housing units are owner-occupied. This homeownership rate is 14% higher than the state average of 72.8%.

Race & Ethnicity

Every resident counted in Loudon was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

44.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher 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 96.4%. Notably, 16.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Loudon, 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.