Sea Isle City, New Jersey

Sea Isle City population, 2020 to 2024

Sea Isle City added 20 residents from July 2020 to July 2024, a change of +1.0%. In the latest year it moved by +1.

Sea Isle City covers 2.20 square miles of land and 0.55 of water, for 965 people per square mile of land. The median New Jersey place of 5,000+ has 4,474, so Sea Isle City is less dense than the typical town.

What county Sea Isle City is in

All of Sea Isle City's residents live in Cape May County, which had 93,875 residents in 2024. Sea Isle City holds 2.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Sea Isle City

1 ZIP Code Tabulation Area (ZCTA) overlaps Sea Isle City by at least 10% of the ZCTA's or the city's land: 08243. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Sea Isle City is

The Census internal point of Sea Isle City is at 39.150800, -74.702700. Trenton, the capital, is 74.0 miles N in a straight line. The nearest larger place is Ocean City, NJ (11,219 people), 9.9 miles away. The nearest city of 100,000 or more is Philadelphia, PA, 63.6 miles away.

Daylight in Sea Isle City

At 39.15° N, Sea Isle City gets about 14 h 56 min of daylight around the June solstice and 9 h 25 min around the December solstice, a swing of 5 h 31 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Sea Isle City

The eight nearest incorporated places of 1,000+ in New Jersey, measured between internal points. The closest is Avalon, 4.9 miles away, with 1,216 people.