Eureka, Texas Demographics & Population 2026

A note before these figures: with a population of 310, Eureka'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

Eureka is a small community located in Texas, within Navarro County. The total population is 310. It ranks as the 1438th most populous out of 1,795 Census-designated places in Texas.

Age Demographics

The median age in Eureka is 53.7 years. This is 51% higher than the state median of 35.6 years. Only 12.6% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Eureka is $81,250. This is 4% higher than the state median of $78,476. It is also about the same as the national median of $80,734. The poverty rate stands at 13.9%. This is about the same as the state poverty rate of 13.8%. The unemployment rate is 7.8%. This is 48% higher than the state rate of 5.3%. The median home value is $171,600. Housing costs are 40% lower than the state median of $283,800. With a home-value-to-income ratio of just 2.1x, Eureka is one of the most affordable housing markets in the area. 78.7% of occupied housing units are owner-occupied. This homeownership rate is 26% higher than the state average of 62.6%.

Race & Ethnicity

The largest racial or ethnic group in Eureka is White (non-Hispanic), making up 69.7% of the population. Hispanic or Latino residents account for 12.3%. The White (non-Hispanic) population is significantly higher than the state average (69.7% vs 39.1%). The Black or African American population (3.9%) is well below the state average of 11.9%. The Hispanic or Latino population (12.3%) is well below the state average of 39.7%. The Asian population (0.3%) is well below the state average of 5.5%.

Education

15.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 54% lower than the state rate of 33.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.1%.

Data Sources & Methodology

All demographic data for Eureka, Texas 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 Texas state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,795 Census-designated places in Texas. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.