21057 Glen Arm
26 active listings out of 1.6K total properties we track in ZIP 21057 (Glen Arm, MD) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
Download Glen Arm 21057 property data
1,575 property records for ZIP 21057 — address, beds/baths, sqft, year built, status, list and last-sale price, price and tax history. Parquet or CSV.
Monthly snapshot · 219 KB Parquet · CSV (294 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 21057. Same company, same dataset, different resolution.
- Tracked
- 1.6K
- Active
- 26
- Median list
- $750K
- Sales (12mo)
- 43
- Tracked
- 1.6K
- Active
- 26
- Median list
- $750K
- Sales (12mo)
- 43
- Tracked
- 1.6K
- Active
- 26
- Median list
- $750K
- Sales (12mo)
- 43
- Tracked
- 1.6K
- Active
- 26
- Median list
- $750K
- Sales (12mo)
- 43
- Tracked
- 1.6K
- Active
- 26
- Median list
- $750K
- Sales (12mo)
- 43
Inventory breakdown
Distribution of the 26 currently-active listings in ZIP 21057. Full dataset covers 1.6K properties — listings, off-market homes, rentals, and full history.
Get Glen Arm 21057 data in your app
GET https://api.straply.com/v1/markets/zip/21057
Authorization: Bearer $STRAPLY_KEY{
"zip": "21057",
"total_tracked": 1578,
"active": 26,
"median_list": 749700
}Nearby ZIP codes
Other Maryland ZIPs within a short drive of 21057.
ZIP 21057 · Glen Arm, MD real estate: market summary
As of November 2026, Straply tracks 1,578 homes in ZIP 21057 (Glen Arm, MD), with 26 active for sale at a median list price of $749,700 (~$263/sq ft). Notably, home prices are climbing — the median sale price is up 29% year over year.
- Median list price
- $749,700
- Median $/sq ft
- $263
- Active listings
- 26
- Median sale price
- $451,000 (+29% YoY)
- Properties tracked
- 1,578
Frequently asked: ZIP 21057 · Glen Arm, MD real estate
What is the median home price in ZIP 21057?
The median list price in ZIP 21057 (Glen Arm, MD) is $749,700 (about $263 per square foot), based on 26 active listings tracked by Straply as of November 2026.
What price range are homes in ZIP 21057?
Active listings in ZIP 21057 (Glen Arm, MD) concentrate in: 35% $500k–$750k and 23% $750k–$1m.
Are home prices in ZIP 21057 going up or down?
The median sale price is $451,000, up 29% year over year. Straply tracked 43 sales here over the past 12 months.
How many homes are for sale in ZIP 21057?
Straply is tracking 26 active listings in ZIP 21057 (Glen Arm, MD) out of 1,578 properties on record as of November 2026.
How old are the homes in ZIP 21057?
Most homes in ZIP 21057 (Glen Arm, MD) were built in the 1970s. About 27% were built after 1980, while 11% predate 1940. The newest tracked home dates to 2026.
What types of homes are in ZIP 21057?
ZIP 21057 (Glen Arm, MD) is mostly single-family homes (88% of listings). Also common: lots / land 12%.
How many bedrooms do homes in ZIP 21057 typically have?
The most common size in ZIP 21057 (Glen Arm, MD) is 5+ bd.
What areas are near ZIP 21057?
Nearby markets Straply also tracks include Hydes 21082, Fork 21051, Baldwin 21013, Phoenix 21131.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.