| Year | North Latitude | West Longitude | 
|---|---|---|
| 18801 | 40° 25′ 48″ | 74° 31′ 01″ | 
| 18901 | 40° 37′ 19″ | 74° 30′ 14″ | 
| 19001 | 40° 27′ 54″ | 74° 29′ 37″ | 
| 19101 | 40° 29′ 24″ | 74° 26′ 20″ | 
| 19201 | 40° 28′ 19″ | 74° 24′ 34″ | 
| 19302 | 40° 32′ 18″ | 74° 23′ 30″ | 
| 19402 | 40° 32′ 18″ | 74° 23′ 44″ | 
| 19503 | 40° 26′ 29″ | 74° 25′ 53″ | 
| 19603 | 40° 30′ 10″ | 74° 23′ 18″ | 
| 19703 | 40° 29′ 45″ | 74° 24′ 04″ | 
| 19804 | 40° 27′ 50″ | 74° 25′ 02″ | 
| 19905 | 40° 26′ 25″ | 74° 25′ 46″ | 
| 20006 | 40° 26′ 18″ | 74° 25′ 41″ | 
| 20106 | 40° 25′ 55″ | 74° 25′ 56″ | 
| 20206 | 40° 26' 18" | 74° 25' 28" | 
1 Source: U.S. Department of Commerce, Bureau of the Census, Fourteenth Census of the United States, 1923
2 Source: U.S. Census Bureau, recomputation for historical county level data which relied upon aggregate county level population data with an estimated county centroid resulting in a possible error of up to one mile.
3 Source: U.S. Department of Commerce, Bureau of the Census, Centers of Population for States and Counties, 1974
4 Source: U.S. Census Bureau, Geography Division, recomputation from archived national block group/enumeration area data resulting in a possible error of up to 1,000 feet.
5 Source: U.S. Census Bureau, Geography Division, recomputation from archived national block group data resulting in a possible error of up to 1,000 feet.
6 Source: U.S. Census Bureau, computation from national block-level data.