Herculaneum, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Herculaneum, Missouri had a total population of 5,071, the 142nd largest city in Missouri, with a median household income of $93,438, which is 32% higher than the state average. The poverty rate is 5.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 32% above the state average — one of the wealthiest communities in Missouri.
- Near full employment with an unemployment rate of just 1.2%.
Herculaneum Quick Facts
How Herculaneum Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 4,925 | 5,071 | +3.0% |
| Median household income | $88,778 | $93,438 | +5.2% |
| Median home value | $222,100 | $234,300 | +5.5% |
How Herculaneum Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Herculaneum Rankings in Missouri
Explore Missouri Rankings
Other Cities in Jefferson County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Arnold | 20,956 | $78,370 | 8.2% | $220,000 |
| Festus | 13,201 | $73,532 | 17.1% | $223,600 |
| Murphy | 8,285 | $72,233 | 10.2% | $184,700 |
| De Soto | 6,470 | $52,500 | 13.1% | $160,700 |
| Pevely | 6,055 | $56,000 | 17.9% | $219,600 |
| Barnhart | 5,785 | $95,811 | 4.9% | $229,200 |
| Imperial | 5,488 | $90,028 | 11.1% | $228,700 |
| Crystal City | 4,718 | $72,598 | 11.4% | $185,800 |
| High Ridge | 3,714 | $70,917 | 7.2% | $172,200 |
| Hillsboro | 3,500 | $77,500 | 11.7% | $221,200 |
Cities Similar to Herculaneum
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Ashland | 4,914 | $93,143 | $258,500 | 45.3% | 4.1% |
| Rock Hill | 4,693 | $95,372 | $278,700 | 65.8% | 5.2% |
| Imperial | 5,488 | $90,028 | $228,700 | 21.4% | 11.1% |
| Wright City | 5,240 | $80,152 | $238,800 | 19.7% | 5.8% |
| Higginsville | 4,781 | $81,033 | $166,100 | 29.9% | 6.8% |
Population Overview
Herculaneum is a small city located in Missouri, within Jefferson County. The total population is 5,071. It ranks as the 142nd most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Herculaneum is 40.4 years. This is 4% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Herculaneum is $93,438. This is 32% higher than the state median of $70,702. It is also 16% higher than the national median of $80,734. The poverty rate stands at 5.6%. This is 56% lower than the state poverty rate of 12.6%. The unemployment rate is 1.2%. This is 71% lower than the state rate of 4.0%. The median home value is $234,300. Housing costs are 2% higher than the state median of $230,300. With a home-value-to-income ratio of just 2.5x, Herculaneum is one of the most affordable housing markets in the area. 90.7% of occupied housing units are owner-occupied. This homeownership rate is 33% higher than the state average of 68.1%.
Race & Ethnicity
The largest racial or ethnic group in Herculaneum is White (non-Hispanic), making up 77.4% of the population. Black or African American residents account for 7.2%. The Asian population (0.3%) is well below the state average of 2.1%.
Education
23.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 29% lower than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.2%.
Data Sources & Methodology
All demographic data for Herculaneum, Missouri 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 Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Herculaneum, Missouri?
Herculaneum, Missouri has a population of 5,071 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Herculaneum, MO?
The median household income in Herculaneum is $93,438, which is 16% higher than the national median of $80,734.
What is the poverty rate in Herculaneum, MO?
The poverty rate in Herculaneum is 5.6%. This means approximately 269 residents live below the federal poverty line.
What is the racial makeup of Herculaneum, Missouri?
Herculaneum's population is 77.4% White, 7.2% Black, 3.9% Hispanic/Latino, and 0.3% Asian.
What is the median home value in Herculaneum, MO?
The median home value in Herculaneum is $234,300. The home-value-to-income ratio is 2.5x.
How educated is Herculaneum, Missouri?
23.0% of adults (25+) in Herculaneum hold a bachelor's degree or higher, and 7.8% hold a graduate or professional degree.