Triadelphia, West Virginia Demographics & Population 2026

A note before these figures: with a population of 825, Triadelphia'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

Triadelphia is a small community located in West Virginia, within Ohio County. The total population is 825. It ranks as the 169th most populous out of 429 Census-designated places in West Virginia.

Age Demographics

The median age in Triadelphia is 45.0 years. This is 5% higher than the state median of 42.7 years. Only 9.6% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Triadelphia is $48,281. This is 19% lower than the state median of $59,608. It is also 40% lower than the national median of $80,734. The poverty rate stands at 26.9%. This is 61% higher than the state poverty rate of 16.7%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 5.3%. This is 1% lower than the state rate of 5.4%. The median home value is $93,600. Housing costs are 42% lower than the state median of $162,600. With a home-value-to-income ratio of just 1.9x, Triadelphia is one of the most affordable housing markets in the area. 54.5% of occupied housing units are owner-occupied. This homeownership rate is 27% lower than the state average of 74.9%.

Race & Ethnicity

Triadelphia has a predominantly White (non-Hispanic) population, comprising 90.1% of all residents. Hispanic or Latino residents account for 8.8%. The Hispanic or Latino population is significantly higher than the state average (8.8% vs 2.1%).

Education

12.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 49% lower than the state rate of 24.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 73.0%.

Data Sources & Methodology

All demographic data for Triadelphia, West Virginia 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 West Virginia state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 429 Census-designated places in West Virginia. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.