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The total population of Mercer County is estimated to be 383,732 with 189,495 males (49.38%) and 194,237 females (50.62%). There are 4,742 more females than males in Mercer County.
The median household income in Mercer County was $92,620 in 2021, which marked an a decrease of 1,777(1.88%) from $94,397 in 2020. This income is 124.15% 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, Mercer County sees its highest median household income among householders in the age group of 45 to 64 years old, at $121,299. Overall, the median household income for the county of Mercer County stands at $95,668.
In Mercer County, the median income for all workers aged 15 years and older, regardless of work hours, was $53,979 for males and $37,644 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $74,605 for males and $60,908 for females.
In Mercer County, the demographic landscape is diverse, spanning 5 distinct racial categories among households. Among these, Asian households have the highest median household income at $172,459, while Black or African American households represent the opposite end with the lowest median household income of $45,429.
In 2022, the population of Mercer County was 380,688, a 0.37% decrease year-by-year from 2021. Previously, in 2021, Mercer County's population was 382,116, a decline of 1.12% compared to a population of 386,441 in 2020.
The median age in Mercer County, NJ is 38.9, as per 2021 ACS 5-Year Estimates. Of the total population, 17.62% were under the age of 15, 21.21% aged 15 to 29, 45.86% aged 30 to 64, 13.29% aged 65 to 84, and 2.01% were 85 years of age and older.
Racial distribution of Mercer County population: 57.37% are White, 20.06% are Black or African American, 0.22% are American Indian and Alaska Native, 11.80% are Asian, 0.03% are Native Hawaiian and other Pacific Islander, 5.07% are some other race and 5.45% are multiracial.