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The total population of St. Marys is estimated to be 131 with 57 males (43.51%) and 74 females (56.49%). There are 17 more females than males in St. Marys.
The median household income in St. Marys was $62,828 in 2021, which marked an a decrease of 14,603(18.86%) from $77,431 in 2020. This income is 84.21% 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, St. Marys sees its highest median household income among householders in the age group of 45 to 64 years old, at $71,949. Overall, the median household income for the city of St. Marys stands at $62,828.
In St. Marys, the median income for all workers aged 15 years and older, regardless of work hours, was $55,590 for males and $17,865 for females. However, when specifically considering full-time, year-round workers within the same age group, while the Census reported a median income of $59,450 for males, while data for females was unavailable due to an insufficient number of sample observations.
In St. Marys, population is primarily represented by White households, reporting a median income of $62,152.
In 2022, the population of St. Marys was 104, a 0.95% decrease year-by-year from 2021. Previously, in 2021, St. Marys's population was 105, a decline of 0.94% compared to a population of 106 in 2020.
The median age in St. Marys, IA is 51.8, as per 2021 ACS 5-Year Estimates. Of the total population, 8.62% were under the age of 15, 23.28% aged 15 to 29, 39.66% aged 30 to 64, 20.69% aged 65 to 84, and 7.76% were 85 years of age and older.
Racial distribution of St. Marys population: 86.21% are White, 1.72% are Black or African American, 6.03% are American Indian and Alaska Native, 0.86% are Native Hawaiian and other Pacific Islander and 5.17% are multiracial.