Sparta Township, NJ · Sussex County · Residential · Block 4020, Lot 1
Favorable tax position
The Watchdog Score, powered by the ROBUST Framework. Evidence coverage 85%, high confidence.
Among 7,081 homes in Sparta Township, the typical (median) tax bill is $11,460. This bill is lower than about 81% of them.
Claim it to follow its assessment, tax and score in your Watchdog account. Once ownership is verified, you can add a photo that shows wherever this address appears on Watchdog.
| Address | Sold | Price |
|---|---|---|
| 22 Shawnee Trl | Feb 2024 | $350,000 |
| 42 Hickory Trl | Sep 2024 | $635,000 |
| 7 Kathleen Ct | Sep 2024 | $1,125,000 |
| 56 Hickory Trl | Jul 2024 | $850,000 |
| 3 Alpine Ter | Mar 2024 | $530,000 |
| 52 Hickory Trl | Mar 2024 | $842,500 |
Same property type in the same town, same street first. Prices come from the state tax list, which runs about a year behind, and can include sales between relatives or other non-market transfers.
We check the state tax list once a month and email you if the assessment, tax bill or Watchdog Score for 21 Seneca Trl changes. Unsubscribe any time.
A printable report for 21 Seneca Trl: tax and assessment, the Watchdog Score, how the bill compares in Sparta Township, recent nearby sales and appeal dates.
The latest annual property tax on the New Jersey tax list is $8,739, on an assessed value of $243,500.
Among 7,081 homes in Sparta Township, the typical (median) tax bill is $11,460. This bill is lower than about 81% of them.
The Watchdog Score, powered by the ROBUST Framework, rates a property's tax position from 0 to 100 using six kinds of public evidence. Higher is better. This property scores 76 (Favorable tax position).
Yes. Appeals go to the Sussex County Board of Taxation. In most towns the deadline is April 1 (May 1 after a town-wide revaluation), or 45 days after assessment notices are mailed if that is later.
No. Watchdog does not show owner names or mailing addresses. Everything on this page comes from public tax and parcel records.
Source: New Jersey MOD-IV tax list and NJ Office of GIS parcel data, refreshed monthly (last refresh October 2026). Town tax rates from the NJ Division of Taxation. Watchdog does not show owner names. How we get our numbers