Zip lookup · PA

18103
Allentown, Pennsylvania.

Allentown, Lehigh County, PA · Allentown-Bethlehem-Easton, PA-NJ metro · population 48,746

What it costs per month · 18103 $1,646/mo

to buy the typical home at today's mortgage rate — +$972 (+144%) since Jan 2020.

What the home itself did
1 year
Up $12,014 +4%
$301,573$313,587 since Sep 2025
5 years
Up $84,501 +37%
$229,086$313,587 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 18103 $1,646 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • 18103$1,646
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 11 years.

Typical home values in zip 18103 rose 4.0% over the past year — faster than the nation's +1.2%.

Asking rents in zip 18103 rose 4.2% over the past year — faster than the nation's +2.7%.

Owning the typical home in zip 18103 runs $703/mo more than renting one. The gap peaked at $713 in May 2024.

That is $2,386 a month against $1,683 rent: a $1,646 mortgage payment, plus $405 property tax and $336 insurance & upkeep.

Owning vs renting — zip 18103

The owning line is the typical home's monthly payment at that month's rate, plus property tax and insurance & upkeep; the renting line is the typical asking rent; the grey line is the mortgage payment on its own. Same homes, same months, both ways of paying for a roof.

$1,000 $1,500 $2,000 2022 2023 2024 2025 2026 Owning all in $2,386 Renting $1,683 Mortgage only $1,646
$1,000 $1,500 $2,000 2022 2024 2026
  • Owning all in$2,386
  • Renting$1,683
  • Mortgage only$1,646

Property tax · $405/mo 1.55% of value a year — the ACS 2020-2024 median bill over the median home value for Lehigh County, PA

Insurance & upkeep · $336/mo insurance, maintenance and repairs together, from the BLS Consumer Expenditure Survey — the national figure for mortgaged homeowners, scaled to this market's home value. BLS publishes the three bundled and they cannot be split.

Both are priced off the same month's home value, so they rise with the market. Neither is a quote — a specific home's bill depends on its assessment, its age and its insurer.

Zillow also publishes an index for the city itself: Allentown, PA — measured over the city limits, which is a different area from this zip.

Asking rent $1,683 as of Sep 2026
+4.2%year on year
Typical home value $313,587 as of Sep 2026
+4.0%year on year

Asking rent — 18103

Against the Allentown-Bethlehem-Easton, PA-NJ metro and the national benchmark.

$1,400 $1,600 $1,800 2022 2023 2024 2025 2026 18103 $1,683 Allentown $1,841 United States $1,932
$1,400 $1,600 $1,800 2022 2024 2026
  • 18103$1,683
  • Allentown$1,841
  • United States$1,932

Typical home value — 18103

Mid-tier homes, smoothed and seasonally adjusted.

$150,000 $200,000 $250,000 $300,000 $350,000 2018 2020 2022 2024 2026 18103 $313,587 Allentown $363,366 United States $366,157
$150,000 $200,000 $250,000 $300,000 $350,000 2018 2022 2026
  • 18103$313,587
  • Allentown$363,366
  • United States$366,157

Within 20 miles

Showing 30 of 72 zips in range — sorting picks from all 72.

Miles sorted ascending, activate to sort descending Zip activate to sort by Zip City activate to sort by City Population activate to sort by Population Rent activate to sort by Rent Home value activate to sort by Home value
2.2 18101 Allentown 6,120 $1,600 $210,012
2.5 18102 Allentown 51,001 $1,517 $225,328
3.8 18049 Emmaus 18,941 $1,898 $386,703
4.0 18034 Center Valley 9,209 — $575,248
4.4 18104 Allentown 48,683 $2,297 $399,078
4.9 18109 Allentown 18,446 $1,554 $271,250
5.9 18032 Catasauqua 9,555 $1,775 $287,901
5.9 18018 Bethlehem 32,965 $1,732 $298,401
6.0 18052 Whitehall 29,451 $1,824 $338,831
6.0 18106 Allentown 6,226 $2,400 $445,223
6.1 18015 Bethlehem 34,852 $1,775 $292,088
6.1 18087 Trexlertown 590 — $357,559
6.5 18036 Coopersburg 15,581 $2,200 $505,352
7.0 18062 Macungie 27,110 $2,301 $452,218
7.4 18092 Zionsville 3,230 — $504,261
7.9 18017 Bethlehem 40,640 $2,077 $390,629
8.0 18069 Orefield 8,515 $2,575 $522,204
8.3 18037 Coplay 7,472 — $358,444
9.1 18031 Breinigsville 11,570 $2,331 $488,363
9.3 18056 Hereford 1,489 — $328,049
9.6 18055 Hellertown 12,117 $2,204 $377,612
9.7 18051 Fogelsville 3,624 $2,435 $544,368
10.0 18078 Schnecksville 7,857 — $522,370
10.1 18067 Northampton 19,590 $1,694 $353,231
10.2 18070 Palm 223 — $383,724
10.7 18955 Richlandtown 1,511 — $370,610
10.7 18020 Bethlehem 21,204 $2,599 $434,365
10.8 18041 East Greenville 5,768 — $360,062
10.8 18059 Laurys Station 744 — $493,461
11.0 18011 Alburtis 5,338 — $365,183

Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.