Homes for sale in Mountainside, NJ — current 07092 listings, median sale prices near $1.05M, the Watchung Reservation borderline, larger lot sizes, and the Deerfield K-8 / Governor Livingston HS arrangement.
A leafy, all-single-family borough on the Watchung slopes. Larger lots, top schools, and parkland on two sides.
Mountainside is one of Union County's most picturesque communities — a 4.05-square-mile borough of 7,038 residents (2020) on the wooded slopes of the Watchung Mountains, bordered by the Watchung Reservation and Echo Lake Park. Known for its larger lots, strict zoning, and exclusively single-family character, it offers a private, almost rural feel minutes from Westfield and Route 22.
The median sale runs near $1.1M, across mid-century ranches, splits, and a growing number of newer contemporary colonials. Mountainside runs its own K-8 schools, anchored by Deerfield School, and sends high schoolers to Governor Livingston High School in Berkeley Heights. Run under a borough government and protected by long-standing zoning, it pairs natural beauty with privacy and strong schools.
Mountainside draws buyers who want larger lots, an exclusively single-family setting, and wooded surroundings — with top schools and Westfield-area access just minutes away. Its protected, green character is the central appeal.
Bordered by the Watchung Reservation and Echo Lake Park, with larger lots, Mountainside feels green and secluded.
Long-standing zoning keeps the borough exclusively single-family, with no condos, townhomes, or apartments.
Highly rated schools and relatively low property taxes — helped by Route 22 commercial ratables — add to the appeal.
An upscale, single-family market.
New construction and large custom colonials, often replacing older homes on the borough's prime lots.
Comparable to: Westfield, Summit.
Updated splits, ranches, and expanded homes on generous lots — the heart of the Mountainside market.
Comparable to: Scotch Plains upper, Westfield entry.
Original mid-century ranches and splits — the most attainable way into this wooded, top-school borough.
Comparable to: Scotch Plains, Fanwood upper.
A wooded borough framed by parkland:
The streets backing onto the Watchung Reservation — among the most private and scenic in the borough, near miles of trails.
The family-favored neighborhoods near the borough's well-regarded K-8 school.
The borough's northern neighborhoods toward Echo Lake Park, with larger lots and a green, settled feel.
The residential pocket south of the highway, convenient to shopping and commuter routes.
Homes near Echo Lake Park on the borough's northern boundary — leafy streets with park access at the doorstep.
"Mountainside is one of Union County's most picturesque communities — a 4.05-square-mile borough of 7,038 on the wooded slopes of the Watchung Mountains, bordered by the Watchung Reservation and Echo Lake Park. Known for its larger lots, strict zoning, and exclusively single-family character, it offers a private, almost rural feel, at a median near $1.1M."
Mountainside cross-shops with Westfield, Scotch Plains, Summit, and Fanwood.
Town | Median | Population | Land Area |
|---|---|---|---|
Mountainside ★ | $1,100,000 | 7,038 | 4.05 mi² |
$1,400,000 | 30,890 | 6.7 mi² | |
$1,250,000 | 22,719 | 6.03 mi² | |
$800,000 | 24,968 | 9.02 mi² | |
$675,000 | 7,774 | 1.3 mi² |
★ Subject borough. Sources: Union County government; U.S. Census. Mountainside population 7,038 (2020 census); 4.05 sq mi land on the wooded slopes of the Watchung Mountains, bordered by the Watchung Reservation and Echo Lake Park; an affluent, exclusively single-family borough known for larger lots and strict zoning; runs its own K-8 schools anchored by Deerfield School and sends high schoolers to Governor Livingston High School in Berkeley Heights; a borough government; median sale price approximately $1.1M. Comparison figures approximate. Verify property-specific pricing with The Prodigy Team before contract.
Parkland on Two Sides. With the Watchung Reservation and Echo Lake Park at its edges, Mountainside offers trails and open space few suburbs can match.
Zoned for Character. Long-standing zoning keeps the borough exclusively single-family, with no condos, townhomes, or apartments — and limits highway retail to preserve its feel.
A Tear-Down-and-Rebuild Market. Many older ranches and splits are being replaced by large new colonials, steadily lifting the borough's price ceiling.
Low Taxes for the Tier. Route 22 commercial ratables help keep property taxes relatively modest for an affluent, low-density town.
Schools + Government. Mountainside runs its own K-8 schools, anchored by Deerfield School, and sends high schoolers to Governor Livingston High School in Berkeley Heights, under a borough government.
Around $1.1M. New construction runs $1.6M-$3M, the core market $1M-$1.6M, and original ranches and splits $700K-$1M.
Mountainside runs its own K-8 schools, anchored by Deerfield School, and sends high schoolers to Governor Livingston High School in Berkeley Heights.
No — long-standing borough zoning keeps Mountainside exclusively single-family, with no condominiums, townhomes, or apartment buildings.
Its wooded Watchung-slope setting, larger single-family lots, borders with the Watchung Reservation and Echo Lake Park, strong schools, and relatively low taxes.
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