Castine, Ohio Demographics & Population 2026
During the 2020–2024 ACS period, Castine, Ohio had a total population of 71, the 1243rd largest village in Ohio, with a median household income of $48,571, which is 32% lower than the state average. The poverty rate is 26.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 32% below the state average, indicating significant economic challenges.
- More than 1 in 4 residents live below the poverty line (26.8%), well above the national average of 12.4%.
- Only 6.4% of adults have a bachelor's degree, well below the national average of 35.7%.
- Housing is very affordable with a home-value-to-income ratio of just 2.3x.
Castine Quick Facts
How Castine 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 | 77 | 71 | -7.8% |
| Median household income | $49,375 | $48,571 | -1.6% |
| Median home value | $102,800 | $112,500 | +9.4% |
How Castine 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+)
Castine Rankings in Ohio
Explore Ohio Rankings
Other Cities in Darke County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Greenville | 12,741 | $47,237 | 14.2% | $157,800 |
| Arcanum | 2,912 | $60,481 | 10.0% | $148,700 |
| Versailles | 2,715 | $70,717 | 5.3% | $208,200 |
| Union City | 1,519 | $32,067 | 38.3% | $72,100 |
| Ansonia | 1,051 | $61,953 | 17.2% | $118,900 |
| New Madison | 783 | $62,500 | 19.8% | $109,900 |
| Wayne Lakes | 711 | $52,500 | 5.9% | $143,600 |
| Gettysburg | 544 | $63,125 | 7.3% | $114,100 |
| Pitsburg | 370 | $54,931 | 10.0% | $161,800 |
| Osgood | 337 | $100,625 | 3.3% | $227,500 |
Cities Similar to Castine
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Blakeslee | 73 | N/A | N/A | 43.8% | 11.0% |
| Graysville | 71 | $53,750 | $107,500 | 10.4% | 12.7% |
| Stafford | 70 | $53,125 | $152,500 | 12.3% | 24.3% |
| Rose Farm | 77 | N/A | N/A | 0.0% | 9.1% |
| New Weston | 65 | $51,500 | $66,300 | 2.6% | 13.9% |
A note before these figures: with a population of 71, Castine'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
Castine is a small community located in Ohio, within Darke County. The total population is 71. It ranks as the 1243rd most populous out of 1,264 Census-designated places in Ohio.
Age Demographics
The median age in Castine is 39.2 years. This is 1% lower than the state median of 39.7 years. With 32.4% of the population under 18, Castine has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Castine is $48,571. This is 32% lower than the state median of $71,389. It is also 40% lower than the national median of $80,734. The poverty rate stands at 26.8%. This is 101% higher than the state poverty rate of 13.3%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The survey records no unemployed residents in Castine, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $112,500. Housing costs are 48% lower than the state median of $214,800. With a home-value-to-income ratio of just 2.3x, Castine is one of the most affordable housing markets in the area. 78.6% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 67.2%.
Race & Ethnicity
The largest racial or ethnic group in Castine is White (non-Hispanic), making up 80.3% of the population. Hispanic or Latino residents account for 14.1%. The Hispanic or Latino population is significantly higher than the state average (14.1% vs 4.8%).
Education
6.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 80% lower than the state rate of 31.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.6%.
Data Sources & Methodology
All demographic data for Castine, Ohio 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 Ohio state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,264 Census-designated places in Ohio. 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 Castine, Ohio?
Castine, Ohio has a population of 71 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Castine, OH?
The median household income in Castine is $48,571, which is 40% lower than the national median of $80,734.
What is the poverty rate in Castine, OH?
The poverty rate in Castine is 26.8%. This means approximately 19 residents live below the federal poverty line.
What is the racial makeup of Castine, Ohio?
Castine's population is 80.3% White, 0.0% Black, 14.1% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Castine, OH?
The median home value in Castine is $112,500. The home-value-to-income ratio is 2.3x.
How educated is Castine, Ohio?
6.4% of adults (25+) in Castine hold a bachelor's degree or higher, and 2.1% hold a graduate or professional degree.