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The total population of Rock County is estimated to be 1,312 with 647 males (49.31%) and 665 females (50.69%). There are 18 more females than males in Rock County.
The median household income in Rock County was $59,590 in 2021, which marked an an increase of 1,281(2.20%) from $58,309 in 2020. This income is 79.87% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Rock County sees its highest median household income among householders in the age group of 45 to 64 years old, at $70,710. Overall, the median household income for the county of Rock County stands at $59,590.
In Rock County, the median income for all workers aged 15 years and older, regardless of work hours, was $38,878 for males and $27,165 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $47,650 for males and $45,010 for females.
In Rock County, population is primarily represented by White households, reporting a median income of $59,777.
In 2022, the population of Rock County was 1,245, a 2.05% decrease year-by-year from 2021. Previously, in 2021, Rock County's population was 1,271, an increase of 0.39% compared to a population of 1,266 in 2020.
The median age in Rock County, NE is 41.5, as per 2021 ACS 5-Year Estimates. Of the total population, 16.88% were under the age of 15, 17.87% aged 15 to 29, 40.73% aged 30 to 64, 19.45% aged 65 to 84, and 5.07% were 85 years of age and older.
Racial distribution of Rock County population: 98.26% are White, 0.68% are Black or African American, 0.45% are American Indian and Alaska Native and 0.61% are multiracial.