Cobb County, Georgia Demographics 2026

Population Overview

Cobb County is located in Georgia with a total population of 769,152. It is the 3rd most populous county out of 159 in Georgia.

Age Demographics

The median age in Cobb County is 37.4 years. This is about average than the state median of 37.4 years.

Economy, Income & Housing

The median household income in Cobb County is $98,712. This is 32% higher than the state median of $74,664. Compared to the national median of $78,538, household income here is 26% higher. The poverty rate stands at 8.6%. This is 37% lower than the state poverty rate of 13.5%. The unemployment rate is 4.5%. This is 11% lower than the state rate of 5.1%. The median home value is $373,700. Housing costs are 37% higher than the state median of $272,900. The home-value-to-income ratio is 3.8x. 67.0% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 65.4%.

Race & Ethnicity

The largest racial or ethnic group in Cobb County is White (non-Hispanic), making up 47.8% of the population. Black or African American residents account for 26.5%.

Education

50.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Cobb County in the top 10% of all cities in the state for educational attainment. This is 47% higher than the state rate of 34.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.8%. Notably, 18.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.