Williams County, Ohio Demographics 2026

Population Overview

Williams County is located in Ohio with a total population of 36,862. It is the 66th most populous county out of 88 in Ohio. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Williams County is 41.8 years. This is 6% higher than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Williams County is $61,834. This is 11% lower than the state median of $69,680. Compared to the national median of $78,538, household income here is 21% lower. The poverty rate stands at 11.9%. This is 10% lower than the state poverty rate of 13.2%. The unemployment rate is 3.5%. This is 28% lower than the state rate of 4.9%. The median home value is $140,000. Housing costs are 30% lower than the state median of $199,200. With a home-value-to-income ratio of just 2.3x, Williams County is one of the most affordable housing markets in the area. 75.6% of occupied housing units are owner-occupied. This homeownership rate is 13% higher than the state average of 67.0%.

Race & Ethnicity

Williams County has a predominantly White (non-Hispanic) population, comprising 91.0% of all residents. Hispanic or Latino residents account for 5.3%. The Black or African American population (1.1%) is well below the state average of 12.1%. The Asian population (0.6%) is well below the state average of 2.4%.

Education

14.2% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 54% lower than the state rate of 30.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.4%.