HR Assistant salary in Trenton-Princeton, NJ
Trenton-Princeton pays HR assistants less than New Jersey as a whole but still more than the country. The median is $52,320 a year1: 3.8% below the New Jersey statewide median of $54,410 and 3.4% above the US median of $50,610. That is in the top quarter of US areas (#66 of 384). With about 270 HR assistants, 7% of the New Jersey total, no area in New Jersey employs more.
BLS occupation 43-4161, area Trenton-Princeton, NJ. Data from the May 2025 release, checked 2026-10-15.
Pay in Trenton-Princeton against New Jersey and the US
| Range | 10th | Median | 90th | |
|---|---|---|---|---|
| Trenton-Princeton, NJ | $44,630 | $52,320 | $65,820 | |
| New Jersey | $39,280 | $54,410 | $68,010 | |
| United States | $37,340 | $50,610 | $68,280 |
The middle half of HR assistants in Trenton-Princeton earns $48,090–$59,190. Pay is tightly grouped: the top tenth starts at $65,820, only 1.5 times the bottom tenth, against 1.8 times across the US, so the going rate is easier to read. From the 25th to the 75th percentile, the local range is only $11,100 wide, against $13,590 across New Jersey and $15,770 nationally: employers in Trenton-Princeton pay within a narrower band.
What to budget for an HR assistant here
| Point in the local range | Per year | Per month | Per hour | Employer cost per year |
|---|---|---|---|---|
| 10th percentile | $44,630 | $3,719 | $21.46 | $57,587 |
| 25th percentile | $48,090 | $4,008 | $23.12 | $62,052 |
| Median | $52,320 | $4,360 | $25.15 | $67,510 |
| 75th percentile | $59,190 | $4,932 | $28.46 | $76,374 |
| 90th percentile | $65,820 | $5,485 | $31.64 | $84,929 |
Pay climbs faster above the median than below it here: the 75th percentile is $6,870 over the median, the 25th only $4,230 under it. An offer at the 75th percentile adds about $8,865 a year in employer cost. These percentiles describe what people in the job earn locally, not experience levels, so place your offer by the tasks and seniority you need.
For scale, the US median of $50,610 falls between the 25th percentile and the median in Trenton-Princeton, and the New Jersey statewide median of $54,410 falls between the median and the 75th percentile.
What a hire really costs in Trenton-Princeton
Pay is only part of it. Benefits and payroll taxes other than paid leave are 22.5% of total compensation in US private industry2, which adds about $15,190 to the $52,320 median and brings it to $67,510 a year. Recruiting, equipment and office space come on top. Benefit levels vary by employer, so treat this as an estimate.
We place executive assistants, customer support and e-commerce staff today; for HR assistants we answer within one business day whether we can help. Enter the monthly pay you have in mind to compare it with a local hire. The fee field shows our standard fee3; Deel's contractor plan is the default payroll tool4.
Other roles in Trenton-Princeton
Of the 17 roles we track in Trenton-Princeton, this one ranks #13 by median pay, between e-commerce order specialists ($53,290) and medical administrative assistants ($49,180). Project Coordinator is the highest at $113,750.
| Role | Median | vs HR assistant | Jobs |
|---|---|---|---|
| Administrative Assistant | +3.3% | 3,680 | |
| E-commerce Order Specialist | +1.9% | 100 | |
| HR Assistant | this role | 270 | |
| Medical Administrative Assistant | -6.0% | 920 | |
| Customer Support Specialist | -9.0% | 3,140 |
Measured against the US median, HR assistants rank #15 of the 17 roles we track in Trenton-Princeton (+3.4%), between marketing specialists (+4.3%) and data entry specialists (-1.0%). The typical role here is at +7.1%, so, measured against the US, HR assistants cost less in Trenton-Princeton than the area's general pay level would suggest. HR assistants hold 1.0% of the jobs in these 17 roles in Trenton-Princeton, 0.8% across New Jersey and 0.6% nationally. The job is a bigger part of the local workforce in these roles than it is nationally.
Other areas in New Jersey
Across the 3 areas of New Jersey with data for this job, the median runs from $50,630 in Atlantic City-Hammonton to $52,790 in Vineland, a gap of $2,160 a year. No other area in New Jersey has as many HR assistants, and 1 of the other 2 pays less.
| Area | Median | vs Trenton-Princeton | Jobs |
|---|---|---|---|
| Vineland, NJ | +0.9% | 60 | |
| Trenton-Princeton, NJ | this area | 270 | |
| Atlantic City-Hammonton, NJ | -3.2% | 120 |
Trenton-Princeton against other US metro areas
By number of jobs, Trenton-Princeton is #58 of 382 US areas for this job. It is one of the larger markets for this job and one of the better-paying ones. Outside New Jersey, Tampa-St. Petersburg and Hinesville pay just above Trenton-Princeton and Riverside-San Bernardino and Olympia-Lacey just below. All four are within $120 a year of the median in Trenton-Princeton. Of the three markets with about as many HR assistants, none pays as much.
| Metro area | Median | vs Trenton-Princeton | Jobs | Close in |
|---|---|---|---|---|
| Hinesville, GA | +0.2% | 40 | pay | |
| Tampa-St. Petersburg, FL | +0.2% | 530 | pay | |
| Trenton-Princeton, NJ | this area | 270 | ||
| Riverside-San Bernardino, CA | -0.1% | 1,290 | pay | |
| Olympia-Lacey, WA | -0.2% | 70 | pay | |
| Madison, WI | -2.9% | 280 | jobs | |
| Syracuse, NY | -4.0% | 280 | jobs | |
| Jacksonville, FL | -5.0% | 270 | jobs |
Questions
How much does it cost to hire an HR assistant in Trenton-Princeton, NJ?
About $67,510 a year at the median, or $5,626 a month: $52,320 in pay plus about $15,190 in benefits and payroll taxes. Recruiting, equipment and office space are extra.
What is the pay range for HR assistants in Trenton-Princeton?
Pay here is higher than in three quarters of US areas. The median was $52,320 a year in the May 2025 BLS survey. The 10th percentile was $44,630, the 90th $65,820, and the middle half earned $48,090 to $59,190.
Is Trenton-Princeton cheaper than the rest of New Jersey for HR assistants?
Yes, it costs less: a median of $52,320 against $54,410 statewide. The next area up in New Jersey is Vineland at $52,790, the next down Atlantic City-Hammonton at $50,630.
How many HR assistants work in Trenton-Princeton?
BLS counts about 270 in the May 2025 survey. That is 7% of the New Jersey total of 4,000. No other area in New Jersey has as many.
Does an HR assistant cost more than a medical administrative assistant in Trenton-Princeton?
Yes: $3,140 a year more at the median. The medians are $52,320 and $49,180.
Sources
4 sources, with links
- BLS OEWS May 2025, 43-4161: bls.gov
- BLS Employer Costs for Employee Compensation, private industry, June 2026: bls.gov
- Stafka pricing: stafka.com
- Deel pricing, contractor management: deel.com
How these pages are built: methodology and data sources. Last updated 2026-11-13.