What ZIP codes serve Allentown, PA?

Allentown, PA is served by the following ZIP codes: 18052, 18101, 18102, 18103, 18104, 18109.

What is the average temperature in Allentown?

In Allentown, PA, the average annual high temperature is 63°F and the average low is 43°F, with 47.4 inches of annual precipitation.

How do I verify a Allentown address?

Use MailColt's free address verification tool to instantly check any Allentown, PA address for deliverability. Enter the street address, city, state, and ZIP code to get a confidence score and standardized formatting.

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Allentown is the #3 city in Pennsylvania by population, with a population of 199,827 across 6 ZIP codes. Average temperatures range from 42.8°F to 63.3°F, with 47.4" of annual precipitation. Retail leads the business landscape, accounting for 755 of the area's establishments.

ZIP Codes

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Income by ZIP Code in Allentown, PA

ZIP Code	Population	Median Income	Median Home Value	Median Rent
18052	29,271	$69,499	$247,100	$1,387
18101	5,789	$41,542	$153,800	$1,337
18102	51,315	$40,681	$146,600	$1,224
18103	47,336	$72,545	$242,400	$1,333
18104	47,999	$94,279	$296,800	$1,620
18109	18,117	$55,437	$180,200	$1,239

Climate in Allentown, PA

Average monthly temperatures and precipitation.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High	38°	42°	51°	63°	74°	82°	86°	84°	77°	66°	54°	43°
Avg Low	22°	23°	30°	40°	51°	60°	65°	63°	55°	44°	34°	27°
Precip	3.3"	2.8"	3.6"	3.7"	3.6"	4.4"	5.3"	4.6"	4.8"	4.1"	3.2"	3.9"
Snow	9.8"	10.8"	6.3"	0.5"	-	-	-	-	-	0.2"	0.9"	4.6"

Top Industries in Allentown, PA

Industry	Establishments
Retail trade	755
Health care and social assistance	680
Other services (except public administration)	528
Accommodation and food services	470
Professional, scientific, and technical services	407
Construction	289
Finance and insurance	258
Administrative and support and waste management and remediation services	236
Transportation and warehousing	231
Wholesale trade	228

Historic Landmarks in Allentown

Allentown has 19 properties listed on the National Register of Historic Places, including:

Allentown Masonic Temple — 1524 W. Linden St.
Allentown National Bank — 13-17 N. Seventh St.
Americus Hotel — 541 Hamilton St.
Bogert Covered Bridge — S of Allentown on LR 39016, Little Lehigh Park
Dime Savings and Trust Company — 12 N. 7th St.
Dorneyville Crossroad Settlement — S of Allentown at jct. of U.S. 222 and PA 29
Gauff-Roth House — 427--443 Auburn St.
Haines Mill — Walnut St. and Main Blvd.
High German Evangelical Reformed Church — 620 Hamilton St.
Hotel Sterling — 343-345 Hamilton St.

All 6 ZIP Codes Serving Allentown, PA

Other Cities in Pennsylvania

Philadelphia Pittsburgh Reading Erie Lancaster

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