ZIP Code 18104 — Allentown, PA Home Prices (2026)

The typical home in ZIP 18104 (Allentown, Pennsylvania) is worth about $406,000 at roughly $210 per square foot — 37% more expensive than the Allentown median and 38% more expensive than the typical U.S. home.

$406,000

Typical home value

$210

Price per sq ft

#2 of 6

Allentown ZIPs by value

+37%

vs Allentown median

How 18104 compares

ZIP 18104 is one of the pricier ZIP codes in Allentown: its typical home value of $406,000 ranks #2 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 $210, against $188 for Allentown as a whole, $167 for Pennsylvania, and $195 nationally.

Area	Typical value	$ / sq ft
ZIP 18104	$406,000	$210
Allentown, PA	$295,500	$188
Pennsylvania	$240,000	$167
United States	$294,000	$195

Home value by size in 18104

Using this ZIP’s rate of about $210 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	$210,000
1,500 sq ft	$315,000
2,000 sq ft	$420,000
2,500 sq ft	$525,000
3,000 sq ft	$630,000

Salary needed to buy a home in ZIP 18104

To buy the typical $406,000 home in ZIP 18104 with 20% down, you need a household income of roughly $110,000 a year (about $2,580 a month for the mortgage, taxes, and insurance). With 10% down the bar rises to about $131,000, because the loan is bigger and mortgage insurance kicks in.

Down payment	Cash down	Monthly payment	Income needed
5% (+PMI)	$20,300	$3,200/mo	$137,000/yr
10% (+PMI)	$40,600	$3,060/mo	$131,000/yr
20%	$81,200	$2,580/mo	$110,000/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 18104

At about $210 per square foot, here is roughly how much home different budgets get you in ZIP 18104:

Budget	Approx. size	What that looks like locally
$200k	950 sq ft	below the local median — condos, smaller or older homes
$250k	1190 sq ft	below the local median — condos, smaller or older homes
$300k	1430 sq ft	below the local median — condos, smaller or older homes
$400k	1900 sq ft	around the typical home here
$500k	2380 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 18104 home.

Estimate a specific home in 18104

The estimator below is pre-set to ZIP 18104 — 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 18104 sits among Allentown’s 6 ZIP codes:

#	ZIP code	Typical value	$ / sq ft
1	18106	$454,000	$201
2	18104 (this page)	$406,000	$210
3	18103	$318,000	$198
4	18109	$273,000	$177
5	18102	$226,000	$151
6	18101	$210,000	$104

ZIP 18104 home prices: frequently asked

What is the average home price in ZIP code 18104? +

The typical home in ZIP 18104 (Allentown, PA) is worth about $406,000 as of 2026. That is 37% more expensive than the Allentown median of $295,500 and 38% more expensive than the U.S. median of $294,000.

What is the price per square foot in 18104? +

About $210 per square foot in 18104, versus $188 across Allentown and $167 across Pennsylvania. At that rate a 1,500 sq ft home runs roughly $315,000 and a 2,500 sq ft home about $525,000.

What salary do you need to buy a house in ZIP 18104? +

For the typical $406,000 home in ZIP 18104, a household income of about $110,000 a year covers the payment with 20% down (a 30-year fixed at 6.5%, plus taxes and insurance, under the 28% rule). With 10% down you need roughly $131,000; with 5% down about $137,000.

Is 18104 an expensive ZIP code? +

Within Allentown, 18104 ranks #2 of 6 ZIP codes by typical home value, which makes it one of the pricier ZIP codes in Allentown. Nationally it is relatively expensive.

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.