New Jersey Sales Tax Rates: Mercer County
Mercer County, New Jersey Sales Tax Rate 2026 Up to 6.625%
While many counties do levy a countywide sales tax, Mercer County does not. The New Jersey sales tax of 6.625% applies countywide. None of the cities or local governments within Mercer County collect additional local sales taxes.
Here's how Mercer County's maximum sales tax rate of 6.625% compares to other counties around the United States:
- Higher maximum sales tax than 95% of New Jersey counties
- Lower maximum sales tax than 73% of counties nationwide
Tax Rates By City in Mercer County, New Jersey
The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. New Jersey has a 6.625% sales tax and Mercer County collects an additional N/A, so the minimum sales tax rate in Mercer County is 6.625% (not including any city or special district taxes). This table shows the total sales tax rates for all cities and towns in Mercer County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Trenton | 6.625% | Robbinsville Township |
| Princeton | 6.625% | Hightstown |
| Trenton | 6.625% | Lawrence Township Mercer County |
| Trenton | 6.625% | Bordentown Township |
| Trenton | 6.625% | Ewing Township |
| Lawrence Township | 6.625% | Hopewell Township Mercer County |
| Hightstown | 6.625% | Roosevelt |
| Trenton | 6.625% | Hamilton Township Mercer County |
| Princeton Junction | 6.625% | Lawrence Township Mercer County |
| Pennington | 6.625% | Hopewell Township Mercer County |
| Hopewell | 6.625% | Hopewell |
| Princeton | 6.625% | Princeton |
| Titusville | 6.625% | Hopewell Township Mercer County |
| Trenton | 6.625% | Trenton |
| Princeton | 6.625% | West Windsor Township |
| Windsor | 6.625% | Robbinsville Township |
New Jersey Sales Tax Rates by Zip Code:
Need an updated list of New Jersey sales tax rates for your business? Download our New Jersey sales tax database!
Mercer County, New Jersey has a maximum sales tax rate of 6.625% and an approximate population of 300,682.
Sales tax rates in Mercer County are determined by twelve different tax jurisdictions, Bordentown Township, Ewing Township, Hamilton Township Mercer County, Hightstown, Hopewell, Hopewell Township Mercer County, Lawrence Township Mercer County, Princeton, Robbinsville Township, Roosevelt, Trenton and West Windsor Township.
Back to New Jersey Sales Tax Handbook Sales tax rates for Mercer County are current as of June 2026
Tax compliance done right
Tired of manually handling sales taxes? Avalara can automate your multi-state sales tax returns, let you know when you've triggered nexus, and more. Request a free demo of Avalara today.