Madisonville, Louisiana Demographics & Population 2026

A note before these figures: with a population of 869, Madisonville'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

Madisonville is a small community located in Louisiana, within St. Tammany Parish. The total population is 869. It ranks as the 285th most populous out of 488 Census-designated places in Louisiana.

Age Demographics

The median age in Madisonville is 46.5 years. This is 22% higher than the state median of 38.0 years.

Economy, Income & Housing

The median household income in Madisonville is $109,583. This is 80% higher than the state median of $60,756. It is also 36% higher than the national median of $80,734. The poverty rate stands at 3.6%. This is 81% lower than the state poverty rate of 18.9%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 5.5%. This is 13% lower than the state rate of 6.3%. The median home value is $399,600. Housing costs are 85% higher than the state median of $216,500. The home-value-to-income ratio is 3.6x. 88.4% of occupied housing units are owner-occupied. This homeownership rate is 31% higher than the state average of 67.4%.

Race & Ethnicity

Madisonville has a predominantly White (non-Hispanic) population, comprising 90.9% of all residents. Black or African American residents account for 3.7%. The White (non-Hispanic) population is significantly higher than the state average (90.9% vs 55.7%). The Black or African American population (3.7%) is well below the state average of 30.5%. The Hispanic or Latino population (2.4%) is well below the state average of 7.2%.

Education

58.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Madisonville in the top 10% of all cities in the state for educational attainment. This is 114% higher than the state rate of 27.0%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.3%. Notably, 17.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Madisonville, Louisiana 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 Louisiana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 488 Census-designated places in Louisiana. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.