Grantham, PA

ZIP code 17027 is assigned to Grantham, PA, and falls within Cumberland 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 2,748 people live inside it.

At 4,942 residents per square mile spread over 0.556 square miles, 17027 reads as a densely built-up area. It is a smaller postal code by population, 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 track close to the national picture. The median of $74,695 puts 17027 near the middle of the pack, ahead of 58% 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 17027 costs close to the national median. A typical home is valued at $266,500 against a US median of $207,500. Ownership dominates: 91.6% 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 92.9% of housing units here. The median construction year is 1976, making the housing here from the later twentieth century. At 2.2%, vacancy is low — housing here is tightly held.

The population skews notably young, with a median age of 20.2 against 42 nationally. Households are relatively large at 15.44 people on average, with 92.7% classified as family households.

Getting to work takes 11.5 minutes on average one way. The dominant mode is walked at 55.9% of workers, while 55.9% walk, 12.5% work from home. Commute patterns are one of the better proxies for how a place actually functions day to day.

Beyond addressing mail, 17027 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, 17027 offers a compact profile of Grantham: 2,748 residents, a median household income of $74,695, 47.7% of adults holding a bachelor's degree or higher, and an unemployment rate of 6.2%. 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. 17027 may cover parts of several distinct areas, and a single neighbourhood in Grantham 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.