Rock County, Minnesota Demographics 2026

Population Overview

Rock County is located in Minnesota with a total population of 9,628. It is the 70th most populous county out of 87 in Minnesota. The county encompasses 7 Census-designated places.

Age Demographics

The median age in Rock County is 41.1 years. This is 6% higher than the state median of 38.6 years.

Economy, Income & Housing

The median household income in Rock County is $70,698. This is 19% lower than the state median of $87,556. Compared to the national median of $78,538, household income here is 10% lower. The poverty rate stands at 9.5%. This is 3% higher than the state poverty rate of 9.2%. The unemployment rate is 2.6%. This is 35% lower than the state rate of 3.9%. The median home value is $201,600. Housing costs are 34% lower than the state median of $305,500. With a home-value-to-income ratio of just 2.9x, Rock County is one of the most affordable housing markets in the area. 76.0% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 72.4%.

Race & Ethnicity

Rock County has a predominantly White (non-Hispanic) population, comprising 92.0% of all residents. Hispanic or Latino residents account for 3.8%. The Black or African American population (0.2%) is well below the state average of 6.7%. The Asian population (0.6%) is well below the state average of 5.0%.

Education

26.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 32% lower than the state rate of 38.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.3%.