Seeing is unbelievable at Chickies Rock Park

File Photo - The sun sets over the Susquehanna River at Chickies Rock Park. 

Lancaster County’s population inched closer to the 550,000 mark in 2016, growing by more than 2,100 people over the previous year and at a pace that is among the fastest in Pennsylvania.

Still, the surrounding counties of Lebanon and York saw more rapid increases while the state as a whole lost population as more people moved to other regions of the country, new data show.

Allegheny County, in western Pennsylvania, saw one of the largest population declines in the nation; nearly 6,000 residents moved away from 2015 to 2016.

The U.S. Census Bureau, the government agency responsible for surveying the American population every year, has issued its annual population estimates for states and counties.

Here are the most significant findings in Lancaster County and the region, by the numbers:

538,500: Lancaster County population in 2016.

2,151: Growth in Lancaster County population from 2015 to 2016.

4: Lancaster County’s rank among all 67 Pennsylvania counties for actual population growth, behind only Montgomery (3,362), Philadelphia (2,908) and Lehigh (2,295) counties.

8: Lancaster County’s rank among all Pennsylvania counties for its 0.40 percent pace of growth, behind Lebanon (0.82 percent), Cumberland (0.81 percent), Lehigh (0.64 percent), Centre (0.61 percent), Juniata (0.53 percent), Montgomery (0.41 percent) and York (0.41 percent) counties.

12,784,227: Pennsylvania’s population in 2016.

7,677: One-year decline in Pennsylvania’s population. It was the first year since 1985 that Pennsylvania’s population decreased. Seven other states also lost population from 2015 to 2016.

6: Lancaster County’s rank among all Pennsylvania counties for total population, behind only Philadelphia, Allegheny, Montgomery, Bucks and Delaware counties.

7,185: Number of babies born in Lancaster County in 2016.

5,035: Number of Lancaster County residents who died in 2016.

1,475: Number of people who immigrated to Lancaster County from another country in 2016.

6: Lancaster County’s rank among all Pennsylvania counties for number of people who emigrated from other countries.

1,410: Number of Lancaster County residents who moved elsewhere in 2016.

7: Lancaster County’s rank among all Pennsylvania counties for number of people moving out.

1,128: How Lancaster County’s 0.40 percent pace of growth ranks among all 3,141 U.S. counties.

298: How Lancaster County’s actual growth of 2,151 people ranks among all U.S. counties.