In 2019, New Haven County, CT had a population of 855k people with a median age of 40.6 and a median household income of $69,751. Between 2018 and 2019 the population of New Haven County, CT declined from 857,620 to 854,757, a −0.334% decrease and its median household income grew from $67,845 to $69,751, a 2.81% increase.
The 5 largest ethnic groups in New Haven County, CT are White (Non-Hispanic) (61.5%), Black or African American (Non-Hispanic) (12.8%), White (Hispanic) (10.3%), Other (Hispanic) (5.84%), and Asian (Non-Hispanic) (3.97%). 23.1% of the households in New Haven County, CT speak a non-English language at home as their primary language.
93.9% of the residents in New Haven County, CT are U.S. citizens.
In 2019, the median property value in New Haven County, CT was $251,500, and the homeownership rate was 60.5%. Most people in New Haven County, CT drove alone to work, and the average commute time was 24.2 minutes. The average car ownership in New Haven County, CT was 2 cars per household.