The zip code 45030 in Harrison, Ohio, is classified as having "Low Diversity" as of 2022. The area is predominantly white, comprising 95% of the population. Other racial groups have minimal representation. The median income is $81,460, and the population is 21,241, indicating a relatively affluent suburban community.

Over the past decade, Harrison has maintained its "Low Diversity" status. The white population has remained above 95% for most of the observed period, with slight fluctuations. There are subtle indications of increasing diversity. The white population decreased from 98% in 2013 to 95% in 2022. The Hispanic population increased from 0% in 2013 to 1% in 2022. The 'two or more races' category increased from 0% in 2017 to 3% in 2022. These minor changes could potentially indicate the beginning of a slow transition towards slightly more diversity.

The median income in Harrison has shown an upward trend over the past decade. From 2013 to 2022, median income increased from $70,020 to $81,460, representing a 16.3% growth. A notable increase occurred in 2021, with median income reaching $91,017, before slightly decreasing in 2022. The population has increased from 17,673 in 2013 to 21,241 in 2022, a 20.2% growth. The consistent increase in both income and population suggests that the area has been economically attractive, potentially drawing new residents. This economic growth might be a factor in the slight increase in diversity, as the area may be attracting a broader range of residents.