In 2017, Mercer County, NJ had a population of 375k people with a median age of 38.4 and a median household income of $79,173. Between 2016 and 2017 the population of Mercer County, NJ grew from 371,023 to 374,733, a 1% increase and its median household income grew from $77,650 to $79,173, a 1.96% increase.
The population of Mercer County, NJ is 49.2% White Alone, 19.9% Black or African American Alone, and 17.8% Hispanic or Latino. N/A% of the people in Mercer County, NJ speak a non-English language, and 87% are U.S. citizens.
The median property value in Mercer County, NJ is $293,800, and the homeownership rate is 63.5%. Most people in Mercer County, NJ commute by Drove Alone, and the average commute time is 27.2 minutes. The average car ownership in Mercer County, NJ is 2 cars per household.