Somerville Boro NJ property tax rate 2025: 4.079
Somerville Boro, Somerset County. 3,518 parcels in the MOD-IV 2026 file. Rate shown is tax year 2025 (latest available — not yet matched to assessment year).
Assessments are tax year 2026; latest published general rate we have is 2025. Estimate uses that rate until the 2026 rate is loaded.
Somerville Boro at a glance
3,518 parcels are on the 2026 file. The 2025 general rate is 4.079, and the prior rate on file is 3.953 for 2024. A typical class 2 assessment is $276,730. Usable sales with a 2025 deed: 87, median $555,900. The state construction file lists 4,887 permits here. The median class 2 house was built in 1947. A property page adds that parcel’s permits, flood zone, mapped flood elevation, and high and low ground. Owner names are not shown.
How to read a Somerville Boro bill
Somerville Boro’s general rate of 4.079 is tax year 2025 on the 2026 assessment file. It is not a 2026 bill. The prior general rate on file is 3.953 for 2024. School, county, and municipal shares of this rate are 58.5%, 13.6%, and 27.9%. The largest slice is schools. In Somerset County the middle school share for rate year 2025 is 58.5% in Somerville Boro. Class 2 net assessments changed from $736,362,500 to $737,441,600, up 0.1%, on 2,665 parcels. Usable sales with a 2025 deed: median $555,900 (87 sales). The largest class share of net assessed value is Vacant land at 41.7%. State school aid is outside these bars.
Building permits in Somerville Boro
The New Jersey construction-permit file lists 4,887 permits in Somerville Boro. This file is a full record from 2021 on. Older permits are mostly missing. Work from before then can be missing here and still be at the Somerville Boro construction office.
2025 general tax rate in Somerville Boro: 4.079
This general rate is tax year 2025. The assessment file is 2026. It is not a 2026 bill.
In Somerset County, the median municipality’s school share (rate year 2025) is 58.5%; this town is 58.5%. The largest slice here is schools. State school aid is not in these bars — it reduces the school levy before the rate is struck. All Somerset towns · How NJ taxes work.
The school percent is the local property-tax levy. The district for this municipality is Somerville Boro (K-12), FY2027 K–12 aid $10,304,917. Those aid figures are not slices of these bars. Somerset district table.
Prior year (2024) general rate: 3.953.
Tax on a $200,000 or $500,000 sale in Somerville Boro
These figures use Somerville Boro’s own ratio and general rate. How the same sale price is calculated for every town. This is not an appraisal and not a collector bill.
2025
A $500,000 sale at the 2025 ratio of 63.46% would be assessed at about $317,300. At the general rate of 4.079, the estimated tax is $12,943. A $200,000 sale at that same ratio and rate would be assessed at about $126,920, with an estimated tax of $5,177.
In Somerset County for 2025, the $500,000 bill runs from $5,800 in Far Hills Boro to $13,292 in So Bound Brook Boro. The middle bill is $9,373 in Hillsborough Twp. All Somerset towns.
See every New Jersey town on the same $200,000 and $500,000 sale for 2025.
Recent usable sales in Somerville Boro
These are the five newest usable deeds on the 2026 file for Somerville Boro. A $1 deed and a non-usable SR1A sale are left out. Each parcel stores one sale, so this is not every deed recorded in town.
| Address | Deed date | Sale price | Net assessment |
|---|---|---|---|
| 30 DE MOND PL | 12/17/2025 | $575,000 | $315,300 |
| 23 W SPRING ST | 12/8/2025 | $801,000 | $379,400 |
| 39 MADISON ST | 11/25/2025 | $462,000 | $196,300 |
| 40 THIRD ST | 11/17/2025 | $768,000 | $262,100 |
| 459 E MAIN ST | 11/5/2025 | $640,000 | $342,900 |
Owner names are not shown. The rate year and the assessment file year differ, so this table does not print an estimated tax. This is not a collector’s bill.
Highest estimated tax in Somerville Boro: $32,754
Residential
The highest residential estimate in Somerville Boro is $32,754 at 280 W SUMMIT ST, on a net assessment of $803,000 and a 2025 general rate of 4.079.
| Address | Class | Net assessment | Rate year | Estimated tax |
|---|---|---|---|---|
| 280 W SUMMIT ST | 2 — Residential (four families or less) | $803,000 | 2025 | $32,754 |
| 228 & 230 ALTAMONT PL. | 2 — Residential (four families or less) | $739,200 | 2025 | $30,152 |
| 166 N. MIDDAUGH ST. | 2 — Residential (four families or less) | $689,700 | 2025 | $28,133 |
| 60 PROSPECT ST | 2 — Residential (four families or less) | $671,500 | 2025 | $27,390 |
| 295 ALTAMONT PL | 2 — Residential (four families or less) | $645,600 | 2025 | $26,334 |
Business
The highest business estimate in Somerville Boro is $367,110 at 92 E MAIN ST, on a net assessment of $9,000,000 and a 2025 general rate of 4.079.
| Address | Class | Net assessment | Rate year | Estimated tax |
|---|---|---|---|---|
| 92 E MAIN ST | 4A — Commercial | $9,000,000 | 2025 | $367,110 |
| 27 WARREN STREET | 4A — Commercial | $7,605,700 | 2025 | $310,237 |
| 75 VETERANS MEMORIAL DR E | 4A — Commercial | $6,000,000 | 2025 | $244,740 |
| 58 E MAIN ST | 4A — Commercial | $5,940,000 | 2025 | $242,293 |
| 373-375 E MAIN ST | 4A — Commercial | $5,871,700 | 2025 | $239,507 |
Owner names are not shown. Every parcel in this town uses the same rate, so the highest tax is the highest assessment. Commercial and industrial parcels (class 4A and 4B) are the business list. Apartment buildings are class 4C and are not in that list. This is not a collector’s bill.
Ratable base in Somerville Boro, typical class 2 assessment $276,730
Class 2 residential in the MOD-IV file: 2,667 parcels, average net assessment $276,730.
How assessments changed
Class 2 residential net assessments changed from $736,362,500 to $737,441,600, up 0.1%, on 2,665 parcels that have both a prior net and a 2026 net. This is the assessment roll, not an appraisal.
Among 87 usable recorded sales whose latest deed on this file is in 2025, the median price is $555,900. A $1 deed and a non-usable SR1A sale are left out. Each parcel stores one sale, so this is not every deed recorded that year.
Share of net assessed value by property class (MOD-IV). Not a school-quality rating.
| Class | Parcels | Net assessed | % of net |
|---|---|---|---|
| Residential 2 | 2,667 | $738,039,800 | 38.8% |
| Vacant land 1 | 423 | $793,338,300 | 41.7% |
| Commercial 4A | 376 | $281,020,900 | 14.8% |
| Industrial 4B | 12 | $10,184,400 | 0.5% |
| Apartment 4C | 30 | $78,775,100 | 4.1% |
| Other / unclassified other | 10 | $0 | 0.0% |
Housing stock in Somerville Boro, median year built 1947
On the 2026 file, class 2 houses in Somerville Boro with a year built have a median year of 1947, about 79 years old. Of those 2,661 houses, the largest share was built Before 1940. This is the assessor’s year built. It is not a ranking of towns.
By parcel count, Residential 75.8%, Vacant land 12.0%, Commercial 10.7%, Apartment 0.9%, Industrial 0.3%, Other / unclassified 0.3%. Those percentages are a count of parcels, not a share of tax dollars. The class table uses the tax-base share.
Year built
Assessor building line
Grouped from the assessor’s building abbreviation. One-family, two-family, and condo are the codes that read clearly. Other codes stay in their own group. This is not a bedroom count, and square feet are left off because most records do not include them.