21837 Mardela Springs
41 active listings out of 1.4K total properties we track in ZIP 21837 (Mardela Springs, MD) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
Download Mardela Springs 21837 property data
1,439 property records for ZIP 21837 — address, beds/baths, sqft, year built, status, list and last-sale price, price and tax history. Parquet or CSV.
Monthly snapshot · 179 KB Parquet · CSV (255 KB)
Records keep changing after a snapshot is compiled.
Rebuilt every day · same columns, same file layout
While you're here, take in the bigger picture — maps below show Maryland (statewide), not just 21837. Same company, same dataset, different resolution.
- Tracked
- 1.4K
- Active
- 41
- Median list
- $250K
- Sales (12mo)
- 37
- Tracked
- 1.4K
- Active
- 41
- Median list
- $250K
- Sales (12mo)
- 37
- Tracked
- 1.4K
- Active
- 41
- Median list
- $250K
- Sales (12mo)
- 37
- Tracked
- 1.4K
- Active
- 41
- Median list
- $250K
- Sales (12mo)
- 37
- Tracked
- 1.4K
- Active
- 41
- Median list
- $250K
- Sales (12mo)
- 37
Inventory breakdown
Distribution of the 41 currently-active listings in ZIP 21837. Full dataset covers 1.4K properties — listings, off-market homes, rentals, and full history.
Get Mardela Springs 21837 data in your app
GET https://api.straply.com/v1/markets/zip/21837
Authorization: Bearer $STRAPLY_KEY{
"zip": "21837",
"total_tracked": 1442,
"active": 41,
"median_list": 250000
}Nearby ZIP codes
Other Maryland ZIPs within a short drive of 21837.
ZIP 21837 · Mardela Springs, MD real estate: market summary
As of November 2026, Straply tracks 1,442 homes in ZIP 21837 (Mardela Springs, MD), with 41 active for sale at a median list price of $250,000 (~$186/sq ft). Notably, the market is cooling — the median sale price is down 44% year over year.
- Median list price
- $250,000
- Median $/sq ft
- $186
- Active listings
- 41
- Median sale price
- $220,000 (-44% YoY)
- Properties tracked
- 1,442
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 $250,000 (about $186 per square foot), based on 41 active listings tracked by Straply as of November 2026.
What price range are homes in ZIP 21837?
Active listings in ZIP 21837 (Mardela Springs, MD) concentrate in: 54% under $300k and 30% $300k–$500k.
Are home prices in ZIP 21837 going up or down?
The median sale price is $220,000, down 44% year over year. Straply tracked 37 sales here over the past 12 months.
How many homes are for sale in ZIP 21837?
Straply is tracking 41 active listings in ZIP 21837 (Mardela Springs, MD) out of 1,442 properties on record as of November 2026.
How old are the homes in ZIP 21837?
Most homes in ZIP 21837 (Mardela Springs, MD) were built in the 2000s. About 56% were built after 1980, while 23% 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: lots / land 15%.
How many bedrooms do homes in ZIP 21837 typically have?
The most common size in ZIP 21837 (Mardela Springs, MD) is 3 bd.
What areas are near ZIP 21837?
Nearby markets Straply also tracks include Vienna 21869, Sharptown 21861, Hebron 21830, Rhodesdale 21659.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.