Weather right now
Asking the National Weather Service…
Where 18037 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 18037 into a pocket calculator and turn it upside down: LEOBI — not quite a word, sorry.
- ➕ As a number, 18,037 = 17 × 1061. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100011001110101 - 🏠 Its numerical neighbours: 18036 (Coopersburg, PA, 15 mi away) and 18038 (Danielsville, PA, 8 mi away).
- 🔄 Backwards, 18037 becomes 73081, which is not a ZIP code at all.
- 👥 52 other ZIP codes are made of exactly the same digits (01378, 03781, 03817, 03871, 07831, 08317, …). The farthest-flung twin is 83701 in Boise, ID, 2,075 miles away.
- 🧭 Farther north than 63% of all ZIP codes, and farther east than 86%.
- 🎯1,212 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 18037 and you would come out at 40.68°S, 104.45°E — 875 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 15m.
- 📏 At 7.6 square miles of land, 18037 is bigger than 24% of ZIP codes — room for about 5.8 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 7,472This ZIP7,472 |
|---|---|
| Households | 3,035This ZIP3,035 |
| Housing units | 3,160This ZIP3,160 |
| Median age | 44.3This ZIP44.3Pennsylvania40.9US 38.9 |
| Median household income | $83,542This ZIP$83,542Pennsylvania$77,971US $80,734 |
| Median home value | $256,600This ZIP$256,600Pennsylvania$254,500US $332,700 |
| Median gross rent | $1,203This ZIP$1,203Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 28.5%This ZIP28.5% |
| Mean commute | 27.7 minThis ZIP27.7 min |
| Population density | 981.9 / sq miThis ZIP981.9 / sq mi |
Business and tax activity
| Business establishments | 104This ZIP104 |
|---|---|
| Employees | 914This ZIP914 |
| Annual payroll | $33,723,000This ZIP$33,723,000 |
| Tax returns filed | 3,980This ZIP3,980 |
| Total adjusted gross income | $292,693,000This ZIP$292,693,000 |
Land area
| Land area | 7.61 sq miThis ZIP7.61 sq mi |
|---|---|
| Water area | 0.15 sq miThis ZIP0.15 sq mi |
Other place names in 18037
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 18037
| ZIP | City | Distance |
|---|---|---|
18059 | Laurys Station, PA | 2.8 mi |
18052 | Whitehall, PA | 2.9 mi |
18065 | Neffs, PA | 3.6 mi |
18086 | Treichlers, PA | 3.9 mi |
18078 | Schnecksville, PA | 3.9 mi |
18001 | Lehigh Valley, PA | 4.1 mi |
18003 | Lehigh Valley, PA | 4.1 mi |
18016 | Bethlehem, PA | 4.1 mi |
18067 | Northampton, PA | 4.2 mi |
18032 | Catasauqua, PA | 4.6 mi |
Find every ZIP code within 10 miles of 18037 →
Questions about this ZIP code
Where is ZIP code 18037?
18037 is in Coplay, Pennsylvania, in Lehigh County, part of the Allentown-Bethlehem-Easton, PA-NJ metropolitan area. Its published point location is 40.6831, -75.5480.
What county is 18037 in?
18037 lies in Lehigh County.
What area code is 18037?
Coplay uses area codes 610, 484 and 835, from NANPA's telephone records.
What time zone is 18037 in?
18037 uses America/New_York.
How many people live in 18037?
About 7,472 people live in ZIP code 18037, in 3,035 households, at 981.9 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 18037?
$83,542 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 18037?
The closest are 18059 (2.8 mi), 18052 (2.9 mi), 18065 (3.6 mi), 18086 (3.9 mi) and 18078 (3.9 mi).
Is 18037 a PO Box ZIP code?
18037 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “18037 ZIP Code — Coplay, Pennsylvania (Lehigh County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18037
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/18037.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.