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Where 16240 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 16240 into a pocket calculator and turn it upside down: OhZgI — not quite a word, sorry.
- ➕ As a number, 16,240 = 2 × 2 × 2 × 2 × 5 × 7 × 29. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11111101110000 - 🏠 Its numerical neighbours: 16239 (Marienville, PA, 32 mi away) and 16242 (New Bethlehem, PA, 8 mi away).
- 🔄 Backwards, 16240 becomes 04261 — and that is a real ZIP code: Newry, ME, 484 miles away.
- 👥 66 other ZIP codes are made of exactly the same digits (01264, 01462, 02461, 02641, 04216, 04261, …). The farthest-flung twin is 64012 in Belton, MO, 826 miles away.
- 🧭 Farther north than 67% of all ZIP codes, and farther east than 76%.
- 🎯1,019 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 16240 and you would come out at 41.04°S, 100.78°E — 1,044 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
- 📏 At 53.6 square miles of land, 16240 is bigger than 61% of ZIP codes — room for about 41 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,327This ZIP1,327 |
|---|---|
| Households | 546This ZIP546 |
| Housing units | 686This ZIP686 |
| Median age | 45.9This ZIP45.9Pennsylvania40.9US 38.9 |
| Median household income | $58,281This ZIP$58,281Pennsylvania$77,971US $80,734 |
| Median home value | $142,400This ZIP$142,400Pennsylvania$254,500US $332,700 |
| Median gross rent | $691This ZIP$691Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 13.6%This ZIP13.6% |
| Mean commute | 32.8 minThis ZIP32.8 min |
| Population density | 24.8 / sq miThis ZIP24.8 / sq mi |
Business and tax activity
| Business establishments | 11This ZIP11 |
|---|---|
| Employees | 55This ZIP55 |
| Annual payroll | $1,790,000This ZIP$1,790,000 |
| Tax returns filed | 650This ZIP650 |
| Total adjusted gross income | $38,883,000This ZIP$38,883,000 |
Land area
| Land area | 53.57 sq miThis ZIP53.57 sq mi |
|---|---|
| Water area | 0.42 sq miThis ZIP0.42 sq mi |
Counties 16240 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Jefferson County | 36.7% |
| Armstrong County | 35.9% |
| Clarion County | 27.4% |
Other place names in 16240
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 16240
| ZIP | City | Distance |
|---|---|---|
16230 | Hawthorn, PA | 3.2 mi |
16224 | Fairmount City, PA | 4.0 mi |
16245 | Oak Ridge, PA | 4.3 mi |
15784 | Worthville, PA | 4.4 mi |
15778 | Timblin, PA | 4.8 mi |
15864 | Summerville, PA | 4.9 mi |
15770 | Ringgold, PA | 5.0 mi |
15776 | Sprankle Mills, PA | 6.2 mi |
15730 | Coolspring, PA | 7.4 mi |
16223 | Distant, PA | 7.5 mi |
Find every ZIP code within 10 miles of 16240 →
Questions about this ZIP code
Where is ZIP code 16240?
16240 is in Mayport, Pennsylvania, in Jefferson County. Its published point location is 41.0360, -79.2250.
What county is 16240 in?
16240 spans 3 counties: Jefferson County, Armstrong County and Clarion County. Most of it falls in Jefferson County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 16240?
Mayport uses area codes 814 and 582, from NANPA's telephone records.
What time zone is 16240 in?
16240 uses America/New_York.
How many people live in 16240?
About 1,327 people live in ZIP code 16240, in 546 households, at 24.8 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 16240?
$58,281 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 16240?
The closest are 16230 (3.2 mi), 16224 (4 mi), 16245 (4.3 mi), 15784 (4.4 mi) and 15778 (4.8 mi).
Is 16240 a PO Box ZIP code?
16240 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “16240 ZIP Code — Mayport, Pennsylvania (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/16240
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/16240.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.