Real Estate Data API

Mountainside NJ

24 active listings out of 2.7K total properties we track across 4 Mountainside ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
24
Median
$969K
±0%
Sales (12mo)
72
Tracked
2.7K
Zoomed out

While you're here, take in the bigger picture — maps below show New Jersey (statewide), not just Mountainside. Same company, same dataset, different resolution.

Get this data →
Get this data →
Get this data →
Get this data →
Get this data →

Inventory breakdown

Distribution of the 24 currently-active listings in Mountainside, NJ. Full dataset covers 2.7K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 0 (0%)
$300K–$500K 0 (0%)
$500K–$750K 1 (4.3%)
$750K–$1M 13 (56.5%)
$1M–$2M 8 (34.8%)
$2M+ 1 (4.3%)
Active by bedroom count
Studio/1 bd 0
2 bd 1
3 bd 6
4 bd 9
5+ bd 7
Active by property type
Single Family 24 (100%)
For Developers

Get Mountainside, NJ data in your app

curl
request
GET https://api.straply.com/v1/markets/city/mountainside-nj
Authorization: Bearer $STRAPLY_KEY
200 OK response
{
  "city": "mountainside-nj",
  "total_tracked": 2690,
  "active": 24,
  "median_list": 969000
}

Mountainside, NJ real estate: market summary

As of April 2026, Straply tracks 2,690 homes in Mountainside, NJ, with 24 active for sale at a median list price of $969,000 (~$419/sq ft). Notably, most homes were built in the 1950s.

Median list price
$969,000
Median $/sq ft
$419
Active listings
24
Properties tracked
2,690

Frequently asked: Mountainside, NJ real estate

What is the median home price in Mountainside?

The median list price in Mountainside, NJ is $969,000 (about $419 per square foot), based on 24 active listings tracked by Straply as of April 2026.

What price range are homes in Mountainside?

Active listings in Mountainside, NJ concentrate in: 56% $750k–$1m and 35% $1m–$2m.

How many homes are for sale in Mountainside?

Straply is tracking 24 active listings in Mountainside, NJ out of 2,690 properties on record as of April 2026.

How old are the homes in Mountainside?

Most homes in Mountainside, NJ were built in the 1950s. About 13% were built after 1980, while 7% predate 1940. The newest tracked home dates to 2026.

What types of homes are in Mountainside?

Mountainside, NJ is mostly single-family homes (100% of listings).

How many bedrooms do homes in Mountainside typically have?

The most common size in Mountainside, NJ is 4 bd.

What areas are near Mountainside?

Nearby markets Straply also tracks include Westfield, Scotch Plains, Garwood, Springfield.

Data as of April 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.