Port Jefferson, New York

Port Jefferson population, 2020 to 2024

Port Jefferson added 220 residents from July 2020 to July 2024, a change of +2.8%. In the latest year it moved by +27. Among 170 New York places of 5,000 or more, that growth ranks 18th; the median place changed by -0.5%. The median place of 5,000+ in New York has 10,324 people, so Port Jefferson is 79% of it.

Port Jefferson covers 3.06 square miles of land and 0.03 of water, for 2,676 people per square mile of land. The median New York place of 5,000+ has 3,760, so Port Jefferson is less dense than the typical town.

What county Port Jefferson is in

All of Port Jefferson's residents live in Suffolk County, which had 1,535,909 residents in 2024. Port Jefferson holds 0.5% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Port Jefferson

1 ZIP Code Tabulation Area (ZCTA) overlaps Port Jefferson by at least 10% of the ZCTA's or the village's land: 11777. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a village that annexed land after 2020 may reach into ZIP codes not listed here.

Where Port Jefferson is

The Census internal point of Port Jefferson is at 40.942200, -73.052800. Albany, the capital, is 123.6 miles NNW in a straight line. The nearest larger place is Lake Grove, NY (11,109 people), 6.7 miles away. The nearest city of 100,000 or more is Bridgeport, CT, 18.5 miles away.

Daylight in Port Jefferson

At 40.94° N, Port Jefferson gets about 15 h 07 min of daylight around the June solstice and 9 h 14 min around the December solstice, a swing of 5 h 54 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Port Jefferson

The eight nearest incorporated places of 1,000+ in New York, measured between internal points. The closest is Head of the Harbor, 6.5 miles away, with 1,475 people.