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Mercer County

Historical significance and forward-thinking businesses converge in Mercer County.

About Mercer County

Mercer County is New Jersey’s capital region anchored by Trenton and Princeton. It stands out in government services, higher education, and research with institutions like Princeton University and Rutgers‑Camden. The county also includes manufacturing, healthcare, and professional services. Transportation options include Amtrak at Trenton Transit Center, New Jersey Transit rail, Route 1, and proximity to Trenton–Mercer Airport. Downtown Princeton offers cultural venues, boutique retail, and an upscale campus community.

Mercer County Slide

Mercer County Slide

Major Private Sector Employers

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at Company Industry
14 acoulter 01/09/2025 06:15 PM acoulter 03/10/2025 09:28 PM Princeton University Education
15 acoulter 01/09/2025 06:16 PM acoulter 03/10/2025 09:28 PM Bristol-Myers Squibb Life Sciences/Healthcare
25 acoulter 01/09/2025 06:58 PM acoulter 03/10/2025 09:28 PM Bank of America Financial Services
26 acoulter 01/09/2025 06:59 PM acoulter 03/10/2025 09:29 PM Amazon Logistics
27 acoulter 01/09/2025 06:59 PM acoulter 03/10/2025 09:29 PM Capital Health Systems Inc. Life Sciences/Healthcare
28 acoulter 01/09/2025 06:59 PM acoulter 03/10/2025 09:51 PM New Jersey Manufacturers Insurance Company Insurance
29 acoulter 01/09/2025 07:00 PM acoulter 03/10/2025 09:51 PM Educational Testing Service Education
33 acoulter 03/10/2025 09:52 PM acoulter 03/10/2025 09:52 PM Mathematica Research
34 acoulter 03/10/2025 09:52 PM acoulter 03/10/2025 09:52 PM Rider University Education
35 acoulter 03/10/2025 09:53 PM acoulter 03/10/2025 09:53 PM The College of New Jersey (TCNJ) Education

Source: Zoominfo and Dunn & Bradstreet, 2023

Major Industries

Higher Education

Higher Education

Pharmaceuticals

Pharmaceuticals

Mercer County By the Numbers

Mercer County By the Numbers

Largest Municipalities

A snapshot of the scale and market potential of key cities and townships in Mercer County

91,543

Hamilton Township

89,661

Trenton

34,589

Ewing Township

31,808

Lawrence Township

29,813

East Windsor

29,612

West Windsor

Source: U.S. Census July 2022

Demographics

A snapshot of Mercer County’s diverse population

57.40%

White

20.10%

Black

18.50%

Hispanic (of all races)

11.80%

Asian

5.10%

Other

Source: JobsEQ using data from American Community Survey 2017-2021

Education Attainment

Levels of education acquired by Mercer County residents

90.10%

High School Diploma

6.2%

Associates Degree

45.50%

Bachelor’s Degree

20.60%

Post-Graduate Studies

Source: JobsEQ using data from American Community Survey 2017-2021

Taxes

Understanding Mercer County’s tax structure and rates

Corporate Income Tax

6.5% for > $0
7.5% for > $50,000
9.0% for > $100,000
11.5% for > $10,000,000

Personal Income Tax (For incomes above $1,000,000)

1.4%-10.75%

State Tax

6.625% Sales Tax

Gross Receipt Tax

None

Franchise Tax

None

Personal Property Tax

None

Real Property Tax

No state property tax

Fuel Tax per gallon of gasoline

41.4 cents

Institutes of Higher Education

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at Institution Name Type Undergrad Graduate
1 choosenjstg 21/08/2025 06:24 PM acoulter 03/09/2025 12:42 AM The College of New Jersey 4-Year 7,671 1,083
2 acoulter 02/09/2025 10:27 PM acoulter 03/09/2025 12:42 AM Princeton University 4-year 5,690 3,256
3 acoulter 02/09/2025 11:31 PM acoulter 03/09/2025 12:43 AM Rider University 4-year 3,646 1,170
4 acoulter 02/09/2025 11:32 PM acoulter 03/09/2025 12:44 AM Mercer County Community College 2-year 8,392 N/A

Source: Office of the Secretary of Higher Education (OSHE)

Infrastructure

Mercer County is connected to the country and world through its nearby airports, seaports, and railways.

Infrastructure

Mercer County is connected to the country and world through its nearby airports, seaports, and railways.

Use of Public Transport

5.90%

Use of Public Transport

Source: JobsEQ using data from American Community Survey 2017-2021

Commuter Rail Lines

2

Commuter Rail Lines

Source: NJ Transit

Distance to Ports

50 miles

(80.5 KM)
Port Newark-Elizabeth

County Resources

Greater Trenton

Trenton’s economic development organization committed to driving revitalization, attracting investment, and supporting business growth in New Jersey’s capital city.

Mercer County Office of Economic Development

A countywide resource that helps businesses start, grow, and thrive by connecting them to incentives, workforce programs, and strategic opportunities across Mercer County.

Explore More

Major Cities and Counties

Location & Infrastructure

Business Climate

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