Gilliam, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Gilliam, Missouri had a total population of 324, the 621st largest city in Missouri, with a median household income of $39,728, which is 44% lower than the state average. The poverty rate is 39.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 44% below the state average, indicating significant economic challenges.
- More than 1 in 4 residents live below the poverty line (39.8%), well above the national average of 12.4%.
- Housing is very affordable with a home-value-to-income ratio of just 2.2x.
Gilliam Quick Facts
How Gilliam 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 | 207 | 324 | +56.5% |
| Median household income | $36,607 | $39,728 | +8.5% |
| Median home value | $82,800 | $85,800 | +3.6% |
How Gilliam 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
Moderate diversity with one or two groups making up the majority.
State average: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Gilliam Rankings in Missouri
Explore Missouri Rankings
Other Cities in Saline County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Marshall | 13,739 | $54,437 | 17.1% | $147,900 |
| Slater | 2,066 | $39,479 | 34.0% | $85,300 |
| Sweet Springs | 1,268 | $46,780 | 14.9% | $107,900 |
| Malta Bend | 211 | $46,875 | 8.6% | $91,000 |
| Nelson | 124 | N/A | 43.1% | $25,400 |
| Miami | 71 | $46,250 | 8.5% | $156,900 |
| Arrow Rock | 65 | $35,469 | 3.1% | $278,800 |
| Mount Leonard | 52 | N/A | 73.1% | $37,500 |
| Grand Pass | 48 | $21,406 | 64.6% | $63,000 |
Cities Similar to Gilliam
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Purcell | 324 | N/A | $87,700 | 13.7% | 31.5% |
| Mercer | 325 | $39,028 | $63,800 | 12.2% | 6.2% |
| Mineral Point | 324 | $41,394 | $47,500 | 3.3% | 21.4% |
| Preston | 331 | $40,417 | $179,900 | 3.7% | 30.8% |
| Kinloch | 322 | $44,688 | $84,800 | 28.8% | 33.9% |
A note before these figures: with a population of 324, Gilliam'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
Gilliam is a small community located in Missouri, within Saline County. The total population is 324. It ranks as the 621st most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Gilliam is 24.0 years. This is 38% lower than the state median of 39.0 years. With 47.2% of the population under 18, Gilliam has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Gilliam is $39,728. This is 44% lower than the state median of $70,702. It is also 51% lower than the national median of $80,734. The poverty rate stands at 39.8%. This is 216% higher than the state poverty rate of 12.6%. 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 7.0%. This is 73% higher than the state rate of 4.0%. The median home value is $85,800. Housing costs are 63% lower than the state median of $230,300. With a home-value-to-income ratio of just 2.2x, Gilliam is one of the most affordable housing markets in the area. 65.0% of occupied housing units are owner-occupied. This homeownership rate is 4% lower than the state average of 68.1%.
Race & Ethnicity
The largest racial or ethnic group in Gilliam is White (non-Hispanic), making up 72.2% of the population. Black or African American residents account for 7.7%.
Education
10.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 68% 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 75.9%.
Data Sources & Methodology
All demographic data for Gilliam, 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 Gilliam, Missouri?
Gilliam, Missouri has a population of 324 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Gilliam, MO?
The median household income in Gilliam is $39,728, which is 51% lower than the national median of $80,734.
What is the poverty rate in Gilliam, MO?
The poverty rate in Gilliam is 39.8%. This means approximately 129 residents live below the federal poverty line.
What is the racial makeup of Gilliam, Missouri?
Gilliam's population is 72.2% White, 7.7% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Gilliam, MO?
The median home value in Gilliam is $85,800. The home-value-to-income ratio is 2.2x.
How educated is Gilliam, Missouri?
10.5% of adults (25+) in Gilliam hold a bachelor's degree or higher, and 1.8% hold a graduate or professional degree.