Sea Isle City, NJ

ZIP code 08243 is assigned to Sea Isle City, NJ, and falls within Cape May County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. Today it also serves as a practical shorthand for the area itself: roughly 2,079 people live inside it.

At 943 residents per square mile spread over 2.204 square miles, 08243 reads as a small-town area. It is a sparsely populated postal code, and density shapes almost everything else on this page — how people get to work, whether they own or rent, and what housing costs.

Household earnings run above the national median. At $98,860, 08243 sits comfortably in the upper half, ahead of 82% of them. The US median for comparison is $70,109. Bear in mind that median income describes the midpoint household, not the average — it is not pulled upward by a handful of very high earners the way a mean would be.

Housing in 08243 costs far above the national median. A typical home is valued at $1,019,500 against a US median of $207,500. Ownership dominates: 93.8% of occupied homes are owner-occupied, which usually signals an established residential area with relatively low turnover.

The building stock is dominated by detached single-family houses, which account for 72.7% of housing units here. The median construction year is 1991, making the housing here from the later twentieth century. The vacancy rate of 83.3% is high, which in many places reflects seasonal or second-home use rather than abandonment.

The population skews considerably older than the national median, with a median age of 65.2 against 42 nationally. Households average just 1.85 people, and 32.4% consist of one person living alone — a signature of areas with a lot of studio and one-bedroom stock.

Getting to work takes 30.3 minutes on average one way. The dominant mode is drove alone at 74.0% of workers, while 17.7% work from home. Commute patterns are one of the better proxies for how a place actually functions day to day.

Beyond addressing mail, 08243 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.

For anyone weighing a move, 08243 offers a compact profile of Sea Isle City: 2,079 residents, a median household income of $98,860, 47.5% of adults holding a bachelor's degree or higher, and an unemployment rate of 3.5%. A handful of figures like these answer more relocation questions than most neighbourhood guides do.

One caution worth repeating: a postal code is not a neighbourhood. 08243 may cover parts of several distinct areas, and a single neighbourhood in Sea Isle City may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.