In 2018, Mercer County, NJ had a population of 370k people with a median age of 38.9 and a median household income of $80,632. Between 2017 and 2018 the population of Mercer County, NJ declined from 374,733 to 369,811, a -1.31% decrease and its median household income grew from $79,173 to $80,632, a 1.84% increase.
The 5 largest ethnic groups in Mercer County, NJ are White (Non-Hispanic) (48.8%), Black or African American (Non-Hispanic) (20%), White (Hispanic) (12.6%), Asian (Non-Hispanic) (11.3%), and Other (Hispanic) (4.4%). NaNk% of the people in Mercer County, NJ speak a non-English language, and 88.1% are U.S. citizens.
The largest universities in Mercer County, NJ are Thomas Edison State University (2,824 degrees awarded in 2017), Princeton University (2,268 degrees), and The College of New Jersey (2,097 degrees).
The median property value in Mercer County, NJ is $289,700, and the homeownership rate is 62.6%. Most people in Mercer County, NJ commute by Drove Alone, and the average commute time is 25.3 minutes. The average car ownership in Mercer County, NJ is 2 cars per household.
Mercer County, NJ borders Hunterdon County, NJ, Burlington County, NJ, Monmouth County, NJ, Middlesex County, NJ, Somerset County, NJ, and Bucks County, PA.