South Seaville, New Jersey Demographics & Population 2026

A note before these figures: with a population of 564, South Seaville's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

South Seaville is a small community located in New Jersey, within Cape May County. The total population is 564. It ranks as the 605th most populous out of 700 Census-designated places in New Jersey.

Age Demographics

The median age in South Seaville is 53.7 years. This is 34% higher than the state median of 40.1 years. 13.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in South Seaville is $129,722. This is 25% higher than the state median of $103,556. It is also 61% higher than the national median of $80,734. The poverty rate stands at 15.1%. This is 55% higher than the state poverty rate of 9.7%. The unemployment rate is 2.1%. This is 68% lower than the state rate of 6.3%. The median home value is $302,600. Housing costs are 33% lower than the state median of $454,400. With a home-value-to-income ratio of just 2.3x, South Seaville is one of the most affordable housing markets in the area. 84.9% of occupied housing units are owner-occupied. This homeownership rate is 33% higher than the state average of 63.8%.

Race & Ethnicity

South Seaville has a predominantly White (non-Hispanic) population, comprising 88.6% of all residents. Hispanic or Latino residents account for 8.9%. The White (non-Hispanic) population is significantly higher than the state average (88.6% vs 50.9%). The Hispanic or Latino population (8.9%) is well below the state average of 22.5%.

Education

47.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 83.0%. Notably, 34.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for South Seaville, New Jersey is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New Jersey state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 700 Census-designated places in New Jersey. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.