The 2016 Lancaster County, Pennsylvania, population is 536,624. There are 569 people per square mile (population density).
The median age is 38.3. The US median is 37.4. 57.37% of people in Lancaster County, Pennsylvania, are married. 7.81% are divorced.
The average household size is 2.64 people. 33.26% of people are married, with children. 11.69% have children, but are single.
83.90% of people are white, 3.36% are black, 1.99% are asian, 0.11% are native american, and 0.08% claim 'Other'.
9.30% of the people in Lancaster County, Pennsylvania, claim hispanic ethnicity (meaning 90.70% are non-hispanic).
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