Mount Arlington Borough, NJ · Morris County · Residential · Block 24, Lot 1
Strong tax position
The Watchdog Score, powered by the ROBUST Framework. Evidence coverage 85%, high confidence.
Among 2,171 homes in Mount Arlington Borough, the typical (median) tax bill is $7,374. This bill is lower than about 99% of them.
Rates start in 2023, the first year after the last town-wide revaluation.
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 |
|---|---|---|
| 3 Prospect St, Unit 1d | Nov 2023 | $182,000 |
| 525 Altenbrand Ave | Dec 2024 | $525,000 |
| 432 Howard Blvd | Feb 2024 | $400,000 |
| 25 Windemere Ave | May 2024 | $750,000 |
| 27 Mountainview Ave | Jan 2024 | $200,000 |
| 354 Howard Blvd | Oct 2023 | $154,000 |
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 3 Prospect St, Unit 1a changes. Unsubscribe any time.
A printable report for 3 Prospect St, Unit 1a: tax and assessment, the Watchdog Score, how the bill compares in Mount Arlington Borough, recent nearby sales and appeal dates.
The latest annual property tax on the New Jersey tax list is $3,256, on an assessed value of $159,900.
Among 2,171 homes in Mount Arlington Borough, the typical (median) tax bill is $7,374. This bill is lower than about 99% 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 83 (Strong tax position).
Yes. Appeals go to the Morris 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