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Advertise here →Green Knoll, NJ · Market Data
Green Knoll, New Jersey real estate market data.
Real estate market data for Green Knoll, NJ (Somerset County) — Census median home value $581,600, county listing prices down about 3.6% over the past year.
Green Knoll, NJ is in Somerset County, New Jersey — covering the whole local market here: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 6,664, with a median household income of $156,630. Census data puts Green Knoll's median home value at $581,600 (all owner-occupied homes); Somerset County's current median listing price runs $669,950, down about 3.6% over the past year.
At a glance
Green Knoll market snapshot
Population
6,664
Median Household Income
$156,630
Median Home Value (city)
$581,600
Median Listing Price (Somerset County)
$669,950
Median Gross Rent
$1,417/mo
Price Trend (YoY)
-3.6%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
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Advertise here →Why Green Knoll
What makes Green Knoll different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Green Knoll's median home value — across all owner-occupied homes, not just recent sales — at $581,600. Separately, Somerset County's current median listing price (via Realtor.com data, 2026-06-01) runs $669,950. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Somerset County's FHFA house price index shows a 6.3% annual change in 2025.
Population & Income
Green Knoll has an estimated population of 6,664 and a median household income of $156,630, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Green Knoll's Census-reported median home value works out to about 3.7x the area's median household income, and median gross rent runs roughly 11% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
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Common questions
Green Knoll FAQ
What are home values like in Green Knoll, NJ?
The Census Bureau's American Community Survey puts Green Knoll's median home value at $581,600. Somerset County's current median listing price runs $669,950, down about 3.6% over the past year.
What is the population of Green Knoll, NJ?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Green Knoll's population at approximately 6,664.
What's the median rent in Green Knoll, NJ?
The Census ACS estimates median gross rent in Green Knoll at approximately $1,417 per month.
What is the median household income in Green Knoll, NJ?
Census ACS data puts the median household income in Green Knoll at approximately $156,630.
Is the Green Knoll housing market growing?
Somerset County's FHFA house price index shows a 6.3% annual change in 2025.
Is Green Knoll, NJ affordable relative to income?
Census ACS data puts Green Knoll's median home value at about 3.7 times the median household income, with median gross rent equal to roughly 11% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
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