18103 Allentown
304 active listings out of 18K total properties we track in ZIP 18103 (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 18103. Same company, same dataset, different resolution.
- Tracked
- 18K
- Active
- 304
- Median list
- $335K
- Sales (12mo)
- 503
- Tracked
- 18K
- Active
- 304
- Median list
- $335K
- Sales (12mo)
- 503
- Tracked
- 18K
- Active
- 304
- Median list
- $335K
- Sales (12mo)
- 503
- Tracked
- 18K
- Active
- 304
- Median list
- $335K
- Sales (12mo)
- 503
- Tracked
- 18K
- Active
- 304
- Median list
- $335K
- Sales (12mo)
- 503
Inventory breakdown
Distribution of the 304 currently-active listings in ZIP 18103. Full dataset covers 18K properties — listings, off-market homes, rentals, and full history.
Get Allentown 18103 data in your app
GET https://api.straply.com/v1/markets/zip/18103
Authorization: Bearer $STRAPLY_KEY{
"zip": "18103",
"total_tracked": 18429,
"active": 304,
"median_list": 335000
}Nearby ZIP codes
Other Pennsylvania ZIPs within a short drive of 18103.
ZIP 18103 · Allentown, PA real estate: market summary
As of November 2026, Straply tracks 18,429 homes in ZIP 18103 (Allentown, PA), with 304 active for sale at a median list price of $335,000 (~$210/sq ft). Notably, it has notably historic housing — 22% of homes predate 1940.
- Median list price
- $335,000
- Median $/sq ft
- $210
- Active listings
- 304
- Median sale price
- $283,000 (-4% YoY)
- Properties tracked
- 18,429
Frequently asked: ZIP 18103 · Allentown, PA real estate
What is the median home price in ZIP 18103?
The median list price in ZIP 18103 (Allentown, PA) is $335,000 (about $210 per square foot), based on 304 active listings tracked by Straply as of November 2026.
What price range are homes in ZIP 18103?
Active listings in ZIP 18103 (Allentown, PA) concentrate in: 46% $300k–$500k and 39% under $300k.
Are home prices in ZIP 18103 going up or down?
The median sale price is $283,000, down 4% year over year. Straply tracked 503 sales here over the past 12 months.
How many homes are for sale in ZIP 18103?
Straply is tracking 304 active listings in ZIP 18103 (Allentown, PA) out of 18,429 properties on record as of November 2026.
How old are the homes in ZIP 18103?
Most homes in ZIP 18103 (Allentown, PA) were built in the 1950s. About 25% were built after 1980, while 22% predate 1940. The newest tracked home dates to 2026.
What types of homes are in ZIP 18103?
ZIP 18103 (Allentown, PA) is mostly single-family homes (66% of listings). Also common: townhouses 25%.
How many bedrooms do homes in ZIP 18103 typically have?
The most common size in ZIP 18103 (Allentown, PA) is 3 bd.
What areas are near ZIP 18103?
Nearby markets Straply also tracks include Allentown 18102, Allentown 18109, Allentown 18104, Emmaus 18049.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.