Real Estate Data API

20878 Gaithersburg

266 active listings out of 24K total properties we track in ZIP 20878 (Gaithersburg, MD) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
266
Median
$785K
-42.5%
Sold/mo
1
-98.7%
Tracked
24K
Zoomed out

While you're here, take in the bigger picture — maps below show Washington, D.C. metro, not just 20878. Same company, same dataset, different resolution.

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Over the past 12 months, ZIP 20878 has recorded 701 home sales. Last month saw 1 sales (-98.7% vs the prior month). Most recent median sale price: $446K.

Key Numbers
Tracked
24K
Active
266
Median list
$785K
Sales (12mo)
701
Get this data →

Right now, 266 homes are actively for sale in ZIP 20878. Median list price is $785K at $308/sqft. Hover each hex for micro-neighborhood stats (median price, $/sqft, top property type).

Key Numbers
Tracked
24K
Active
266
Median list
$785K
Sales (12mo)
701
Get this data →
Key Numbers
Tracked
24K
Active
266
Median list
$785K
Sales (12mo)
701
Get this data →
Key Numbers
Tracked
24K
Active
266
Median list
$785K
Sales (12mo)
701
Get this data →
Key Numbers
Tracked
24K
Active
266
Median list
$785K
Sales (12mo)
701
Get this data →
Key Numbers
Tracked
24K
Active
266
Median list
$785K
Sales (12mo)
701

Inventory breakdown

Distribution of the 266 currently-active listings in ZIP 20878. Full dataset covers 24K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 25 (9.7%)
$300K–$500K 50 (19.3%)
$500K–$750K 49 (18.9%)
$750K–$1M 69 (26.6%)
$1M–$2M 54 (20.8%)
$2M+ 12 (4.6%)
Active by bedroom count
Studio/1 bd 8
2 bd 38
3 bd 85
4 bd 72
5+ bd 61
Active by property type
Single Family 118 (44.4%)
Townhouse 84 (31.6%)
Condo 64 (24.1%)
For Developers

Get Gaithersburg 20878 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/20878
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "20878",
  "total_tracked": 23545,
  "active": 266,
  "median_list": 785000
}
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ZIP 20878 · Gaithersburg, MD real estate: market summary

As of June 2026, Straply tracks 23,545 homes in ZIP 20878 (Gaithersburg, MD), with 266 active for sale at a median list price of $785,000 (~$308/sq ft). Notably, the market is cooling — the median sale price is down 42% year over year.

Median list price
$785,000
Median $/sq ft
$308
Active listings
266
Median sale price
$445,900 (-42% YoY)
Properties tracked
23,545

Frequently asked: ZIP 20878 · Gaithersburg, MD real estate

What is the median home price in ZIP 20878?

The median list price in ZIP 20878 (Gaithersburg, MD) is $785,000 (about $308 per square foot), based on 266 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 20878?

Active listings in ZIP 20878 (Gaithersburg, MD) concentrate in: 27% $750k–$1m and 21% $1m–$2m.

Are home prices in ZIP 20878 going up or down?

The median sale price is $445,900, down 42% year over year. Straply tracked 701 sales here over the past 12 months.

How many homes are for sale in ZIP 20878?

Straply is tracking 266 active listings in ZIP 20878 (Gaithersburg, MD) out of 23,545 properties on record as of June 2026.

How old are the homes in ZIP 20878?

Most homes in ZIP 20878 (Gaithersburg, MD) were built in the 1980s. About 78% were built after 1980. The newest tracked home dates to 2026.

What types of homes are in ZIP 20878?

ZIP 20878 (Gaithersburg, MD) is mostly single-family homes (44% of listings). Also common: townhouses 32%, condos 24%.

How many bedrooms do homes in ZIP 20878 typically have?

The most common size in ZIP 20878 (Gaithersburg, MD) is 3 bd.

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