In 2021, Mercer County, NJ had a population of 385k people with a median age of 38.9 and a median household income of $85,687. Between 2020 and 2021 the population of Mercer County, NJ grew from 368,085 to 384,951, a 4.58% increase and its median household income grew from $83,306 to $85,687, a 2.86% increase.
The 5 largest ethnic groups in Mercer County, NJ are White (Non-Hispanic) (48%), Black or African American (Non-Hispanic) (19.3%), Asian (Non-Hispanic) (11.8%), White (Hispanic) (9.38%), and Other (Hispanic) (4.96%).
None of the households in Mercer County, NJ reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
88% of the residents in Mercer County, NJ are U.S. citizens.
In 2021, the median property value in Mercer County, NJ was $295,400, and the homeownership rate was 63%.
Most people in Mercer County, NJ drove alone to work, and the average commute time was 27.6 minutes. The average car ownership in Mercer County, NJ was 2 cars per household.