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Where 18065 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 18065 into a pocket calculator and turn it upside down: SgOBI — not quite a word, sorry.
- ➕ As a number, 18,065 = 5 × 3613. Its digits add up to 20, a total 2,586 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100011010010001 - 🏠 Its numerical neighbours: 18064 (Nazareth, PA, 16 mi away) and 18066 (New Tripoli, PA, 7 mi away).
- 🔄 Backwards, 18065 becomes 56081 — and that is a real ZIP code: Saint James, MN, 995 miles away.
- 👥 51 other ZIP codes are made of exactly the same digits (01568, 01586, 01865, 05681, 05861, 06518, …). The farthest-flung twin is 85601 in Arivaca, AZ, 2,074 miles away.
- 🧭 Farther north than 63% of all ZIP codes, and farther east than 86%.
- 🎯1,209 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 18065 and you would come out at 40.70°S, 104.39°E — 878 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 06m of daylight. Shortest: 9h 15m.
- 📏 At 0.167 square miles of land, 18065 is bigger than 2% of ZIP codes — about 81 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 577This ZIP577 |
|---|---|
| Households | 248This ZIP248 |
| Housing units | 248This ZIP248 |
| Median age | 43.1This ZIP43.1Pennsylvania40.9US 38.9 |
| Bachelor's degree or higher | 10.1%This ZIP10.1% |
| Population density | 3,455.1 / sq miThis ZIP3,455.1 / sq mi |
Business and tax activity
| Business establishments | 12This ZIP12 |
|---|---|
| Employees | 114This ZIP114 |
| Annual payroll | $5,359,000This ZIP$5,359,000 |
Land area
| Land area | 0.17 sq miThis ZIP0.17 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 18065
| ZIP | City | Distance |
|---|---|---|
18078 | Schnecksville, PA | 2.0 mi |
18080 | Slatington, PA | 2.6 mi |
18037 | Coplay, PA | 3.6 mi |
18079 | Slatedale, PA | 3.9 mi |
18059 | Laurys Station, PA | 4.0 mi |
18086 | Treichlers, PA | 4.3 mi |
18053 | Germansville, PA | 5.0 mi |
18069 | Orefield, PA | 5.1 mi |
18035 | Cherryville, PA | 5.3 mi |
18088 | Walnutport, PA | 5.4 mi |
Find every ZIP code within 10 miles of 18065 →
Questions about this ZIP code
Where is ZIP code 18065?
18065 is in Neffs, Pennsylvania, in Lehigh County, part of the Allentown-Bethlehem-Easton, PA-NJ metropolitan area. Its published point location is 40.6993, -75.6123.
What county is 18065 in?
18065 lies in Lehigh County.
What area code is 18065?
Neffs uses area codes 484, 610 and 835, from NANPA's telephone records.
What time zone is 18065 in?
18065 uses America/New_York.
How many people live in 18065?
About 577 people live in ZIP code 18065, in 248 households, at 3,455.1 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 18065?
The closest are 18078 (2 mi), 18080 (2.6 mi), 18037 (3.6 mi), 18079 (3.9 mi) and 18059 (4 mi).
Is 18065 a PO Box ZIP code?
18065 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “18065 ZIP Code — Neffs, Pennsylvania (Lehigh County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18065
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/18065.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.