Princeton vs Union Twp, NJ
Property taxes, schools, NJ Transit pass and monthly cost for Princeton and Union Twp, side by side with sources.
At a glance
- Lower tax billUnion Twp, $10,849 a year
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Union Twp has the lower 2025 average residential tax bill: $10,849 a year, $12,524 less than $23,373 in Princeton. Both are above the NJ average of $10,340.
- Peak commutePrinceton 53 min vs Union Twp 36 min
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Peak commute is 53 minutes in Princeton and 36 minutes in Union Twp, 17 minutes shorter in Union Twp.
- NJ Transit passUnion Twp $255 vs Princeton $549
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The NJ Transit monthly pass to NY Penn is $255 in Union Twp and $549 in Princeton, $294 more.
- Higher school resultsPrinceton: ELA, math; Union Twp: 4-year graduation
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On the district results, Princeton's district is higher on ELA (76.9% vs 47.9%) and math (73.3% vs 29.9%); Union Twp's district is higher on 4-year graduation (95.1% vs 92.8%).
Figures are from the data file, version 2.5.3. Estimates are labeled. Sources and dates are in each section below. Add a third town in the compare tool.
Monthly cost
Estimated monthly cost Estimate
- Mortgage (principal and interest)
- Property tax
- Insurance
- NJ Transit pass
- Union Twp$4,772 / monthMortgage $3,258 · Property tax $1,130 · Insurance $129 · NJ Transit pass $255 · on a $597,500 median single-family home
More info
Same math as the monthly cost calculator, at its defaults: each town's headline median sale price, single-family unless the town's label says otherwise (GSMLS, 2025 closed sales), 20% down, a 30-year fixed loan at 7.24% (Freddie Mac weekly national average, week of Oct 29, 2026), the town's 2025 effective tax rate, homeowners insurance (condo insurance for condo towns), and the town's NJ Transit pass where it has one. Excludes flood insurance, PMI, HOA, utilities and maintenance. Change the numbers in the calculator.
Home prices
Median sale price, single-family
- Union Twp$597,500354 sales
Median sale price, condo / townhouse
- Union Twp$380,00052 sales
Monthly mortgage
- Union Twp$3,258 / month
More info
Principal & interest only; excludes taxes and insurance. Based on the single-family median unless a town's row says otherwise.
Source: GSMLS
Property taxes
Average residential tax bill, 2025
- Princeton$23,373 / year$13,033 above the NJ average
- Union Twp$10,849 / year$509 above the NJ average
- NJ average$10,340 / yearState total, same series as the town bills
More info
Bills compare better than raw tax rates, because towns assess homes at different shares of market value.
Schools
Commute
Peak commute time
- Princeton53 min
More info
Typical from Princeton Junction: 56.5 min, median trip time of the scheduled trips arriving 7:00-9:00 AM on Wed 2026-11-18 (one itinerary per departure; dominated options excluded). Based on 6 trips.
- Union Twp36 min
More info
Typical from Union: 38 min, median trip time of the scheduled trips arriving 7:00-9:00 AM on Wed 2026-11-18 (one itinerary per departure; dominated options excluded). Based on 4 trips.
Full pages: Princeton · Union Twp. Find a local expert if you want help weighing these two towns.