Princeton is a borough with a university in it, a commercial street on one side of the gates, and a train station that is not the Junction. People come for campus, the art museum, and a town that works on foot. They leave confused if they booked a hotel on Route 1 and expected to stroll.
The 48-hour version is the Princeton weekend.
This is an independent guide. It is not the official New Jersey tourism office.
Town and campus
Nassau Street is the spine. Palmer Square sits on the town side. The campus begins at the gates across the street. Witherspoon runs off Nassau as a second commercial block. The older quadrangles are the photograph. They are also a working campus. Stay on mapped paths. Do not treat dorm courtyards as an exhibit.
McCarter Theatre anchors the campus edge near the Dinky. The Princeton University Art Museum is the indoor reason to come when it is open — check hours after renovations and academic breaks.
Princeton Junction is not Princeton
The Northeast Corridor stops at Princeton Junction, in West Windsor. The Dinky — a short NJ Transit shuttle — runs from there to Princeton Station, next to campus. If your ticket or your rideshare dump you at the Junction, you are not in town yet. Miss the last Dinky and you are in a taxi.
Where to stay
Inns and small hotels in the borough. Walking distance to Nassau Street is the filter. Route 1 and the Forrestal area are conference geography. Graduation, Reunion, and big football Saturdays take the inventory first.
[EXPEDIA: Princeton, NJ — prefer the borough.]
Getting there
Corridor train from New York Penn or from Philadelphia via Trenton, then the Dinky. Not every Amtrak stops at the Junction. Driving is easy until you park. TigerTransit and a municipal loop exist for people already here; they are not how you arrive from Penn Station.
Tickets: NJ Transit for visitors
Eat
College-town stack: sit-down rooms on and off Nassau, bagels, the occasional diner logic if you leave the pretty blocks. This is not a Shore seafood town. It is not a pork-roll pilgrimage unless you want it to be.
When it works
October is the brochure month. Spring is the other. Summer is quieter. Academic calendar weekends can be empty or packed — look at the university calendar before you assume a sleepy Saturday.