ZIP Code 18103 — Allentown, PA Home Prices (2026)
The typical home in ZIP 18103 (Allentown, Pennsylvania) is worth about $318,000 at roughly $198 per square foot — 8% more expensive than the Allentown median and 8% more expensive than the typical U.S. home.
How 18103 compares
ZIP 18103 is a mid-priced ZIP code for Allentown: its typical home value of $318,000 ranks #3 of the 6 Allentown ZIP codes we track (the citywide range runs from $210,000 in 18101 to $454,000 in 18106). Per square foot it costs about $198, against $188 for Allentown as a whole, $167 for Pennsylvania, and $195 nationally.
| Area | Typical value | $ / sq ft |
|---|---|---|
| ZIP 18103 | $318,000 | $198 |
| Allentown, PA | $295,500 | $188 |
| Pennsylvania | $240,000 | $167 |
| United States | $294,000 | $195 |
Home value by size in 18103
Using this ZIP’s rate of about $198 per square foot. Condition, lot, and the exact street move these meaningfully — use the estimator below for a home-specific figure.
| Home size | Estimated value |
|---|---|
| 1,000 sq ft | $198,000 |
| 1,500 sq ft | $297,000 |
| 2,000 sq ft | $396,000 |
| 2,500 sq ft | $495,000 |
| 3,000 sq ft | $594,000 |
Salary needed to buy a home in ZIP 18103
To buy the typical $318,000 home in ZIP 18103 with 20% down, you need a household income of roughly $87,000 a year (about $2,020 a month for the mortgage, taxes, and insurance). With 10% down the bar rises to about $103,000, because the loan is bigger and mortgage insurance kicks in.
| Down payment | Cash down | Monthly payment | Income needed |
|---|---|---|---|
| 5% (+PMI) | $15,900 | $2,510/mo | $108,000/yr |
| 10% (+PMI) | $31,800 | $2,400/mo | $103,000/yr |
| 20% | $63,600 | $2,020/mo | $87,000/yr |
Assumes a 30-year fixed mortgage at 6.5%, property tax at 1.1% and insurance at 0.45% of value per year, PMI of 0.75% on loans with less than 20% down, and the standard 28% housing-to-income rule. Your rate, taxes, and HOA will move these — run your own numbers in the mortgage calculator.
What your budget buys in ZIP 18103
At about $198 per square foot, here is roughly how much home different budgets get you in ZIP 18103:
| Budget | Approx. size | What that looks like locally |
|---|---|---|
| $150k | 760 sq ft | below the local median — condos, smaller or older homes |
| $200k | 1010 sq ft | below the local median — condos, smaller or older homes |
| $250k | 1260 sq ft | below the local median — condos, smaller or older homes |
| $300k | 1520 sq ft | around the typical home here |
| $400k | 2020 sq ft | around the typical home here |
Wondering where that budget goes further? The relocation calculator ranks hundreds of U.S. cities by what the same money buys — it opens pre-filled with a typical 18103 home.
Estimate a specific home in 18103
The estimator below is pre-set to ZIP 18103 — pick your home’s size for an instant ballpark, then open the full calculator to adjust beds, baths, and condition.
All Allentown ZIP codes by home value
Where 18103 sits among Allentown’s 6 ZIP codes:
| # | ZIP code | Typical value | $ / sq ft |
|---|---|---|---|
| 1 | 18106 | $454,000 | $201 |
| 2 | 18104 | $406,000 | $210 |
| 3 | 18103 (this page) | $318,000 | $198 |
| 4 | 18109 | $273,000 | $177 |
| 5 | 18102 | $226,000 | $151 |
| 6 | 18101 | $210,000 | $104 |
ZIP 18103 home prices: frequently asked
What is the average home price in ZIP code 18103? +
What is the price per square foot in 18103? +
What salary do you need to buy a house in ZIP 18103? +
Is 18103 an expensive ZIP code? +
See the full Allentown home values page, all Pennsylvania cities, or price per square foot by ZIP code nationwide.
Directional estimates from public market data (Realtor.com & Zillow research), not appraisals. A single ZIP contains very different homes; actual values vary and change over time.