ZIP Code Market Report
18104 — Allentown, PA
Data through February 2026 · Updated monthly
Avg Home Value
$386,813
▲ 3.2% year-over-year
Month-over-Month
-0.2%
▼ 0.2%
Single Family
$386,576
Condo / Co-op
$289,107
The average home value in the 18104 ZIP code (Allentown, Pennsylvania) is $386,813 as of February 2026. Home prices are rising, up 3.2% compared to last year.
A 3-bedroom home in 18104 is valued at $354,888. Single-family homes average $386,576, while condos average $289,107.
The market in 18104 has a $231,249 spread between bottom-tier homes at $297,454 and top-tier homes at $528,704. Bottom-tier properties represent the primary opportunity range for real estate investors using the 70% rule, fix-and-flip, or BRRRR strategies.
Looking ahead, Zillow's forecast model projects home values in the 18104 ZIP code will increase 0.5% over the next 12 months, bringing the projected average to approximately $388,747. This modest projected change should be factored into any investment analysis for properties in this area.
This report is part of the Lehigh County market area in Pennsylvania. For a broader view of the housing market including rent data, market activity, and affordability analysis, see the full Lehigh County report.
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Market Snapshot
18104 Housing Market at a Glance
Key metrics for the last 3 months with trend direction.
| Metric | Dec 2025 | Jan 2026 | Feb 2026 | 3-Mo Change |
|---|---|---|---|---|
| Avg Home Value | $387,868 | $387,521 | $386,813 | ▼ 0.3% |
| Single Family Value | $383,394 | $384,990 | $386,576 | ▲ 0.8% |
Home Values
18104 Home Value Trend
Historical home values for ZIP code 18104. Switch between All Homes, Single Family, Bottom Tier, and Top Tier.
Source: Zillow Research ZHVI / ZORI · Updated monthly
By Bedroom
What Homes Cost in 18104
Median home values by bedroom count in this ZIP code.
| Bedrooms | Median Value |
|---|---|
| 2 Bedrooms | $298,708 |
| 3 Bedrooms | $354,888 |
| 4 Bedrooms | $492,348 |
Property Types
Home Values by Property Type in 18104
How different property types compare in this ZIP code.
All Homes
$386,813
Single Family
$386,576
Condo / Co-op
$289,107
Bottom Tier
$297,454
Top Tier
$528,704
Forecast
12-Month Home Value Forecast for 18104
Zillow projects home values in 18104 will increase 0.5% over the next year, reaching approximately $388,747.
Current Value
$386,813
Projected Change
+0.5%
▲ 0.5%
Projected Value
$388,747
Source: Zillow Home Value Forecast (ZHVF). Forecasts are not guarantees.
Data Sources and Methodology
Home value data for ZIP code 18104 comes from the Zillow Home Value Index (ZHVI), updated monthly. ZHVI measures the typical home value using Zillow's automated valuation model, smoothed and seasonally adjusted.
This report was last updated February 2026. Data is refreshed on the 17th of each month.
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