Real Estate Data API

18109 Allentown

63 active listings out of 6.6K total properties we track in ZIP 18109 (Allentown, PA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
63
Median
$280K
±0%
Sales (12mo)
168
Tracked
6.6K
Zoomed out

While you're here, take in the bigger picture — maps below show Pennsylvania (statewide), not just 18109. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
6.6K
Active
63
Median list
$280K
Sales (12mo)
168
Get this data →
Key Numbers
Tracked
6.6K
Active
63
Median list
$280K
Sales (12mo)
168
Get this data →
Key Numbers
Tracked
6.6K
Active
63
Median list
$280K
Sales (12mo)
168
Get this data →
Key Numbers
Tracked
6.6K
Active
63
Median list
$280K
Sales (12mo)
168
Get this data →
Key Numbers
Tracked
6.6K
Active
63
Median list
$280K
Sales (12mo)
168

Inventory breakdown

Distribution of the 63 currently-active listings in ZIP 18109. Full dataset covers 6.6K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 39 (63.9%)
$300K–$500K 18 (29.5%)
$500K–$750K 1 (1.6%)
$750K–$1M 1 (1.6%)
$1M–$2M 2 (3.3%)
$2M+ 0 (0%)
Active by bedroom count
Studio/1 bd 3
2 bd 10
3 bd 31
4 bd 11
5+ bd 5
Active by property type
Single Family 31 (49.2%)
Townhouse 16 (25.4%)
Manufactured 7 (11.1%)
Multi Family 7 (11.1%)
Apartment 2 (3.2%)
For Developers

Get Allentown 18109 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/18109
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "18109",
  "total_tracked": 6586,
  "active": 63,
  "median_list": 279999
}
Get an API key Read the docs

ZIP 18109 · Allentown, PA real estate: market summary

As of June 2026, Straply tracks 6,586 homes in ZIP 18109 (Allentown, PA), with 63 active for sale at a median list price of $279,999 (~$172/sq ft). Notably, it has notably historic housing — 34% of homes predate 1940.

Median list price
$279,999
Median $/sq ft
$172
Active listings
63
Properties tracked
6,586

Frequently asked: ZIP 18109 · Allentown, PA real estate

What is the median home price in ZIP 18109?

The median list price in ZIP 18109 (Allentown, PA) is $279,999 (about $172 per square foot), based on 63 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 18109?

Active listings in ZIP 18109 (Allentown, PA) concentrate in: 64% under $300k and 30% $300k–$500k.

How many homes are for sale in ZIP 18109?

Straply is tracking 63 active listings in ZIP 18109 (Allentown, PA) out of 6,586 properties on record as of June 2026.

How old are the homes in ZIP 18109?

Most homes in ZIP 18109 (Allentown, PA) were built in the 1950s. About 17% were built after 1980, while 34% predate 1940. The newest tracked home dates to 2025.

What types of homes are in ZIP 18109?

ZIP 18109 (Allentown, PA) is mostly single-family homes (49% of listings). Also common: townhouses 25%, manufactured homes 11%.

How many bedrooms do homes in ZIP 18109 typically have?

The most common size in ZIP 18109 (Allentown, PA) is 3 bd.

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