South Seaville, NJ population, income and ZIP codes

South Seaville CDP is a very small community in New Jersey, with 550 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #607 of 700 ranked by population — larger than 13% of them. The median age here is 53.3 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in South Seaville CDP earn a median of $123,409 a year, 57.1% above the national figure of $78,538 and 15% above the $106,926 median for the 543 New Jersey cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 16.2% of residents here, above the 12.4% national rate.

The typical owner-occupied home in South Seaville CDP is valued at $309,300, 1.9% above the national figure and 25% below the $412,500 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 2.5×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 75.6% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

A median age of 53.3 puts South Seaville CDP well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages. Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

The Census withheld gross rent for South Seaville CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.