Real Estate Data API

21837 Mardela Springs

21 active listings out of 1.3K total properties we track in ZIP 21837 (Mardela Springs, MD) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
21
Median
$262K
±0%
Sales (12mo)
39
Tracked
1.3K
Zoomed out

While you're here, take in the bigger picture — maps below show Maryland (statewide), not just 21837. Same company, same dataset, different resolution.

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Key Numbers
Tracked
1.3K
Active
21
Median list
$262K
Sales (12mo)
39
Get this data →
Key Numbers
Tracked
1.3K
Active
21
Median list
$262K
Sales (12mo)
39
Get this data →
Key Numbers
Tracked
1.3K
Active
21
Median list
$262K
Sales (12mo)
39
Get this data →
Key Numbers
Tracked
1.3K
Active
21
Median list
$262K
Sales (12mo)
39
Get this data →
Key Numbers
Tracked
1.3K
Active
21
Median list
$262K
Sales (12mo)
39

Inventory breakdown

Distribution of the 21 currently-active listings in ZIP 21837. Full dataset covers 1.3K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 12 (60%)
$300K–$500K 5 (25%)
$500K–$750K 1 (5%)
$750K–$1M 2 (10%)
$1M–$2M 0 (0%)
$2M+ 0 (0%)
Active by bedroom count
Studio/1 bd 0
2 bd 3
3 bd 10
4 bd 5
5+ bd 1
Active by property type
Single Family 16 (76.2%)
Manufactured 4 (19%)
Lot 1 (4.8%)
For Developers

Get Mardela Springs 21837 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/21837
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "21837",
  "total_tracked": 1335,
  "active": 21,
  "median_list": 262400
}
Get an API key Read the docs

ZIP 21837 · Mardela Springs, MD real estate: market summary

As of June 2026, Straply tracks 1,335 homes in ZIP 21837 (Mardela Springs, MD), with 21 active for sale at a median list price of $262,400 (~$180/sq ft). Notably, it has notably historic housing — 22% of homes predate 1940.

Median list price
$262,400
Median $/sq ft
$180
Active listings
21
Properties tracked
1,335

Frequently asked: ZIP 21837 · Mardela Springs, MD real estate

What is the median home price in ZIP 21837?

The median list price in ZIP 21837 (Mardela Springs, MD) is $262,400 (about $180 per square foot), based on 21 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 21837?

Active listings in ZIP 21837 (Mardela Springs, MD) concentrate in: 60% under $300k and 25% $300k–$500k.

How many homes are for sale in ZIP 21837?

Straply is tracking 21 active listings in ZIP 21837 (Mardela Springs, MD) out of 1,335 properties on record as of June 2026.

How old are the homes in ZIP 21837?

Most homes in ZIP 21837 (Mardela Springs, MD) were built in the 2000s. About 55% were built after 1980, while 22% predate 1940. The newest tracked home dates to 2026.

What types of homes are in ZIP 21837?

ZIP 21837 (Mardela Springs, MD) is mostly single-family homes (76% of listings). Also common: manufactured homes 19%.

How many bedrooms do homes in ZIP 21837 typically have?

The most common size in ZIP 21837 (Mardela Springs, MD) is 3 bd.

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