Heidelberg, Mississippi Demographics & Population 2026

A note before these figures: with a population of 756, Heidelberg'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

Heidelberg is a small community located in Mississippi, within Jasper County. The total population is 756. It ranks as the 225th most populous out of 420 Census-designated places in Mississippi.

Age Demographics

The median age in Heidelberg is 43.6 years. This is 13% higher than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Heidelberg is $49,896. This is 12% lower than the state median of $56,447. It is also 38% lower than the national median of $80,734. The poverty rate stands at 27.7%. This is 46% higher than the state poverty rate of 18.9%. 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 4.1%. This is 29% lower than the state rate of 5.8%. The median home value is $107,800. Housing costs are 37% lower than the state median of $169,800. With a home-value-to-income ratio of just 2.2x, Heidelberg is one of the most affordable housing markets in the area. 67.7% of occupied housing units are owner-occupied. This homeownership rate is 3% lower than the state average of 70.0%.

Race & Ethnicity

The largest racial or ethnic group in Heidelberg is Black or African American, making up 76.8% of the population. White (non-Hispanic) residents account for 19.4%. The White (non-Hispanic) population (19.4%) is well below the state average of 55.2%. The Black or African American population is significantly higher than the state average (76.8% vs 36.3%). The Hispanic or Latino population (0.3%) is well below the state average of 3.7%.

Education

13.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 47% lower than the state rate of 25.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.3%.

Data Sources & Methodology

All demographic data for Heidelberg, Mississippi 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 Mississippi state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 420 Census-designated places in Mississippi. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.