Marietta, Indiana Demographics & Population 2026
During the 2020–2024 ACS period, Marietta, Indiana had a total population of 97, the 853rd largest community in Indiana. The poverty rate is 0.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Marietta Quick Facts
How Marietta 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 | 137 | 97 | -29.2% |
How Marietta 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: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Marietta Rankings in Indiana
Explore Indiana Rankings
Cities Similar to Marietta
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Indian Village | 97 | $81,875 | $190,600 | 36.9% | 10.3% |
| Raub | 97 | N/A | N/A | 6.7% | 0.0% |
| Warrington | 97 | N/A | N/A | 0.0% | 0.0% |
| Bringhurst | 98 | N/A | $60,500 | 0.0% | 4.1% |
| Sims | 98 | N/A | $115,000 | 12.2% | 15.3% |
A note before these figures: with a population of 97, Marietta'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
Marietta is a small community located in Indiana. The total population is 97. It ranks as the 853rd most populous out of 967 Census-designated places in Indiana.
Age Demographics
The median age in Marietta is 33.7 years. This is 12% lower than the state median of 38.1 years.
Economy, Income & Housing
The ACS records no residents below the poverty line in Marietta. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Marietta, which reflects the size of the sample rather than a labor market without joblessness. 53.8% of occupied housing units are owner-occupied. This homeownership rate is 24% lower than the state average of 70.5%.
Race & Ethnicity
Every resident counted in Marietta was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.
Education
22.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 23% lower than the state rate of 29.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.7%.
Data Sources & Methodology
All demographic data for Marietta, Indiana 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 Indiana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 967 Census-designated places in Indiana. 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 Marietta, Indiana?
Marietta, Indiana has a population of 97 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Marietta, IN?
The Census Bureau does not publish a reliable median household income estimate for Marietta — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Marietta, IN?
The ACS sample for Marietta recorded no residents below the federal poverty line. Because the community is small, this indicates that the survey did not capture poverty here rather than that no poverty exists — the estimate carries a wide margin of error.
What is the racial makeup of Marietta, Indiana?
Marietta's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Marietta, IN?
The Census Bureau does not publish a reliable median home value estimate for Marietta — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Marietta, Indiana?
22.8% of adults (25+) in Marietta hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.