Commercial Real Estate Market in Monmouth Junction, NJ
Updated monthly: sale, lease, property records, location trend, and more… · Last update: September 30
67 active listings and 417 off-market properties in Monmouth Junction, NJ. Commercial property asks $168/SF to buy and $11.30/SF/Yr to lease.
Market Trends
Monmouth Junction, NJ spans 13.3 square miles in Middlesex County, New Jersey. Figures below refresh monthly; last updated 30 September 2026.
Office
Office space in Monmouth Junction, NJ asks $91/SF to buy. Vacancy runs 19.9% across the Northeast region in 2025, up from 13.1% in 2019.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Retail
Retail space in Monmouth Junction, NJ asks $179/SF to buy. Vacancy runs 6% across the Northeast region in 2025, little changed from 6% in 2019. Down from a 2020 peak of 7.1%.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Industrial
Industrial vacancy in Monmouth Junction, NJ runs 7.6% across the Northeast region in 2025, up from 5.4% in 2019. Nearly 2.4x the 2021 low of 3.2%.
Vacancy Rate % in Northeast region
Multifamily
Multifamily space in Monmouth Junction, NJ asks $317/SF to buy. Vacancy runs 5.6% across the Northeast region in 2025, up from 4% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Market overview
Demographics & Economy
Monmouth Junction, NJ has 18,956 residents in 6,721 households. Density runs 1,422 people per square mile. Median household income here is $121,771 and median gross rent $1,897 a month.
18,956
Population
6,721
Households
2.8
Avg Household Size
39
Median Age
65%
College-Educated
94%
High-School Grad
13.3 sq mi
ZIP Area
1,422
Density / Sq Mi
$121,771
Median Household Income
$72,679
Median Earnings
$1,897
Median Rent
$489,100
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| South Brunswick | $168 (county avg) | $11.30 |
| Jamesburg | $168 (county avg) | $25.04 |
Commercial property in Monmouth Junction, NJ asks $168/SF. The 2 bordering markets run from $168/SF in South Brunswick to $168/SF in South Brunswick, and the city sits in line with their $168/SF median.
Frequently Asked Questions
What is the average price per square foot for commercial property in Monmouth Junction?
Commercial property in Monmouth Junction, NJ asks an average of $168 per square foot. The 3 most recent recorded sales traded at a median of $233/SF. Multifamily carries the highest asking price at $317/SF.
How much does it cost to lease commercial space in Monmouth Junction?
Asking lease rates in Monmouth Junction, NJ average $11.30 per square foot per year.
How does Monmouth Junction compare to nearby markets on price?
Monmouth Junction, NJ asks $168/SF against $168/SF in South Brunswick and $168/SF in Jamesburg.
Where does Realmo's Monmouth Junction market data come from?
Realmo compiles Monmouth Junction, NJ figures from 7 recent recorded sales, 34 active sale listings, 33 active lease listings, 417 tracked off-market properties. Sale and lease figures refresh monthly; vacancy annually. Last updated 30 September 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 34 active for-sale and 33 active for-lease listings in Monmouth Junction, NJ. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- Price per square foot
- The county-level $/SF blends closed sales aggregated over the trailing months of available data, not a single day's snapshot — it can differ from any one month's own median.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Refresh
- The monthly aggregates close at the end of the previous month, so 30 September 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at Northeast region level, retail vacancy is reported at Northeast region level and industrial vacancy is reported at Northeast region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 30 September 2026 · How Realmo checks market page data · Report a data issue
