18104 Allentown
303 active listings out of 21K total properties we track in ZIP 18104 (Allentown, PA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
While you're here, take in the bigger picture — maps below show Pennsylvania (statewide), not just 18104. Same company, same dataset, different resolution.
- Tracked
- 21K
- Active
- 303
- Median list
- $410K
- Sales (12mo)
- 561
- Tracked
- 21K
- Active
- 303
- Median list
- $410K
- Sales (12mo)
- 561
- Tracked
- 21K
- Active
- 303
- Median list
- $410K
- Sales (12mo)
- 561
- Tracked
- 21K
- Active
- 303
- Median list
- $410K
- Sales (12mo)
- 561
- Tracked
- 21K
- Active
- 303
- Median list
- $410K
- Sales (12mo)
- 561
Inventory breakdown
Distribution of the 303 currently-active listings in ZIP 18104. Full dataset covers 21K properties — listings, off-market homes, rentals, and full history.
Get Allentown 18104 data in your app
GET https://api.straply.com/v1/markets/zip/18104
Authorization: Bearer $STRAPLY_KEY{
"zip": "18104",
"total_tracked": 21200,
"active": 303,
"median_list": 409950
}Nearby ZIP codes
Other Pennsylvania ZIPs within a short drive of 18104.
ZIP 18104 · Allentown, PA real estate: market summary
As of November 2026, Straply tracks 21,200 homes in ZIP 18104 (Allentown, PA), with 303 active for sale at a median list price of $409,950 (~$211/sq ft). Notably, it has notably historic housing — 22% of homes predate 1940.
- Median list price
- $409,950
- Median $/sq ft
- $211
- Active listings
- 303
- Median sale price
- $367,450 (+4% YoY)
- Properties tracked
- 21,200
Frequently asked: ZIP 18104 · Allentown, PA real estate
What is the median home price in ZIP 18104?
The median list price in ZIP 18104 (Allentown, PA) is $409,950 (about $211 per square foot), based on 303 active listings tracked by Straply as of November 2026.
What price range are homes in ZIP 18104?
Active listings in ZIP 18104 (Allentown, PA) concentrate in: 51% $300k–$500k and 21% under $300k.
Are home prices in ZIP 18104 going up or down?
The median sale price is $367,450, up 4% year over year. Straply tracked 561 sales here over the past 12 months.
How many homes are for sale in ZIP 18104?
Straply is tracking 303 active listings in ZIP 18104 (Allentown, PA) out of 21,200 properties on record as of November 2026.
How old are the homes in ZIP 18104?
Most homes in ZIP 18104 (Allentown, PA) were built in the 1950s. About 35% were built after 1980, while 22% predate 1940. The newest tracked home dates to 2026.
What types of homes are in ZIP 18104?
ZIP 18104 (Allentown, PA) is mostly single-family homes (68% of listings). Also common: townhouses 27%.
How many bedrooms do homes in ZIP 18104 typically have?
The most common size in ZIP 18104 (Allentown, PA) is 3 bd.
What areas are near ZIP 18104?
Nearby markets Straply also tracks include Allentown 18101, Allentown 18102, Allentown 18106, Allentown 18103.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.