Real Estate Data API

18103 Allentown

160 active listings out of 17K total properties we track in ZIP 18103 (Allentown, PA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
160
Median
$339K
±0%
Sales (12mo)
569
Tracked
17K
Zoomed out

While you're here, take in the bigger picture — maps below show Pennsylvania (statewide), not just 18103. Same company, same dataset, different resolution.

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Key Numbers
Tracked
17K
Active
160
Median list
$339K
Sales (12mo)
569
Get this data →
Key Numbers
Tracked
17K
Active
160
Median list
$339K
Sales (12mo)
569
Get this data →
Key Numbers
Tracked
17K
Active
160
Median list
$339K
Sales (12mo)
569
Get this data →
Key Numbers
Tracked
17K
Active
160
Median list
$339K
Sales (12mo)
569
Get this data →
Key Numbers
Tracked
17K
Active
160
Median list
$339K
Sales (12mo)
569

Inventory breakdown

Distribution of the 160 currently-active listings in ZIP 18103. Full dataset covers 17K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 55 (36.4%)
$300K–$500K 60 (39.7%)
$500K–$750K 26 (17.2%)
$750K–$1M 3 (2%)
$1M–$2M 5 (3.3%)
$2M+ 2 (1.3%)
Active by bedroom count
Studio/1 bd 5
2 bd 11
3 bd 75
4 bd 39
5+ bd 21
Active by property type
Single Family 113 (70.6%)
Townhouse 36 (22.5%)
Multi Family 8 (5%)
Manufactured 3 (1.9%)
For Developers

Get Allentown 18103 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/18103
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "18103",
  "total_tracked": 17313,
  "active": 160,
  "median_list": 339000
}
Get an API key Read the docs

ZIP 18103 · Allentown, PA real estate: market summary

As of June 2026, Straply tracks 17,313 homes in ZIP 18103 (Allentown, PA), with 160 active for sale at a median list price of $339,000 (~$190/sq ft). Notably, it has notably historic housing — 22% of homes predate 1940.

Median list price
$339,000
Median $/sq ft
$190
Active listings
160
Properties tracked
17,313

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 $339,000 (about $190 per square foot), based on 160 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 18103?

Active listings in ZIP 18103 (Allentown, PA) concentrate in: 40% $300k–$500k and 36% under $300k.

How many homes are for sale in ZIP 18103?

Straply is tracking 160 active listings in ZIP 18103 (Allentown, PA) out of 17,313 properties on record as of June 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 (71% of listings). Also common: townhouses 22%, multi-family homes 5%.

How many bedrooms do homes in ZIP 18103 typically have?

The most common size in ZIP 18103 (Allentown, PA) is 3 bd.

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