Allen County, Indiana Demographics 2026

Population Overview

Allen County is located in Indiana with a total population of 388,791. It is the 3rd most populous county out of 92 in Indiana. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Allen County is 36.2 years. This is 5% lower than the state median of 38.0 years.

Economy, Income & Housing

The median household income in Allen County is $68,839. This is 2% lower than the state median of $70,051. Compared to the national median of $78,538, household income here is 12% lower. The poverty rate stands at 12.2%. This is about average than the state poverty rate of 12.2%. The unemployment rate is 4.6%. This is 8% higher than the state rate of 4.3%. The median home value is $194,300. Housing costs are 4% lower than the state median of $201,600. With a home-value-to-income ratio of just 2.8x, Allen County is one of the most affordable housing markets in the area. 69.1% of occupied housing units are owner-occupied. This homeownership rate is 2% lower than the state average of 70.3%.

Race & Ethnicity

The largest racial or ethnic group in Allen County is White (non-Hispanic), making up 70.6% of the population. Black or African American residents account for 10.7%. The Asian population is significantly higher than the state average (5.0% vs 2.5%).

Education

31.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 8% higher than the state rate of 28.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.3%.