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The total population of Keystone is estimated to be 385 with 210 males (54.55%) and 175 females (45.45%). There are 35 less females than males in Keystone.
The median household income in Keystone was $57,498 in 2021, which marked an a decrease of 1,107(1.89%) from $58,605 in 2020. This income is 77.07% 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, Keystone sees its highest median household income among householders in the age group of 45 to 64 years old, at $77,555. Overall, the median household income for the town of Keystone stands at $57,498.
In Keystone, the median income for all workers aged 15 years and older, regardless of work hours, was $28,224 for males and $22,004 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $57,762 for males and $28,851 for females.
In Keystone, population is primarily represented by White households, reporting a median income of $57,048.
In 2022, the population of Keystone was 242, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Keystone's population was 242, a decline of 0.00% compared to a population of 242 in 2020.
The median age in Keystone, SD is 36.8, as per 2021 ACS 5-Year Estimates. Of the total population, 23.67% were under the age of 15, 20.04% aged 15 to 29, 44.99% aged 30 to 64, 10.66% aged 65 to 84, and 0.64% were 85 years of age and older.
Racial distribution of Keystone population: 88.27% are White, 1.71% are American Indian and Alaska Native, 1.49% are Asian, 0.85% are some other race and 7.68% are multiracial.