Old Washington, Ohio Demographics & Population 2026

A note before these figures: with a population of 223, Old Washington'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

Old Washington is a small community located in Ohio, within Guernsey County. The total population is 223. It ranks as the 1099th most populous out of 1,264 Census-designated places in Ohio.

Age Demographics

The median age in Old Washington is 41.6 years. This is 5% higher than the state median of 39.7 years. Only 10.8% of residents are under 18, indicating fewer families with children. 10.8% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Old Washington is $76,875. This is 8% higher than the state median of $71,389. It is also 5% lower than the national median of $80,734. The poverty rate stands at 12.1%. This is 9% lower than the state poverty rate of 13.3%. The unemployment rate is 20.5%. This is 330% higher than the state rate of 4.8%. The median home value is $131,300. Housing costs are 39% lower than the state median of $214,800. With a home-value-to-income ratio of just 1.7x, Old Washington is one of the most affordable housing markets in the area. 55.8% of occupied housing units are owner-occupied. This homeownership rate is 17% lower than the state average of 67.2%.

Race & Ethnicity

The largest racial or ethnic group in Old Washington is White (non-Hispanic), making up 64.1% of the population. Hispanic or Latino residents account for 17.5%. The Hispanic or Latino population is significantly higher than the state average (17.5% vs 4.8%).

Education

20.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 36% 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 94.9%.

Data Sources & Methodology

All demographic data for Old Washington, 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.