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Princeton, New Jersey Map and Directory


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Mercer County, New Jersey locator map According to the United States Census Bureau, Princeton is classified as an "Other" type of place that is located in Mercer County, New Jersey at 40.35 degrees North and 74.66 degrees West.  The place's time zone is America/New York, and the place's primary telephone area code is 609.  The land area of Princeton is about 17.93 square miles, whereas the water area of the place is about 0.43 square miles.  Mercer County's land area is about 225 square miles, so the place occupies about 8.0 percent of the county's total land area.

The Census Bureau estimates that Princeton had about 31,187 residents in 2019, which is approximately 1,739 people per square mile of land area. 

According to recent American Community Survey data, the median household income in Princeton was about $137,672 per year. 

The New Jersey counties map at upper right shows Mercer County, highlighted in red.  Use the menu below to display interactive maps of Princeton, either in a frame on this page or in full-screen mode. 

Use the menu below to display categorized Princeton directories. 

Princeton Products and Services Directory

Selected Princeton, New Jersey Listings

These randomly selected Princeton listings provide some insight into the place's cultural environment and economic climate.

ACV Associates
  • Business Consultants & Advisors
  • Management Consultants
  • Business Management Services
  • Marketing Consultants
CEC Civil Engineering Corporation
  • Engineers
  • Civil Engineers
  • Municipal Engineers
DBS Associates
  • Legal Services
  • Court Reporting
Doctors of Optometry
  • Optometrists
  • Web Site Developers
Mikros Systems Corporation
  • Computers & Equipment Wholesale & Manufacturers
Palmer Square Management Inc
  • Property Management
  • Property Maintenance
Princeton Adult School
  • Elementary & Secondary Education
  • Colleges & Universities
  • Academic Specialty Schools
Princeton City-Office LLC
  • Real Estate Commercial & Industrial
  • Phone Communications Services
  • Answering Services
  • Office Buildings & Parks
Princeton Gastroenterology - Glenn L Osias MD
  • General Practice
  • Gastroenterology Physicians & Surgeons
Princeton Health Systems Inc
  • Nutrition
  • Fitness Consultants
  • Nutrition Consultants
Richardson Smith Architects
  • Building & Home Construction
  • Architects
  • Architectural Services
Terhune Orchards
  • Grocery Stores & Supermarkets
  • Fruits & Vegetables Retail
  • Fruits & Vegetables Wholesale
  • Farms & Ranches

Nearby New Jersey Cities and Towns *

* Parenthesized numbers indicate economic activity levels.

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