Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/15840

15840

ZIP 15840 is Falls Creek, Pennsylvania, mostly in Jefferson County; area code 814; Eastern time.

Type
Standard
Time zone
America/New_York
County
Jefferson +1 more
Metro area
none
Population
1,928
Coordinates
41.1720, -78.8226
☼ Live from 15840 — Falls Creek, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 15840 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.

★ Weird and wonderful facts about 15840
  • 🔢 Type 15840 into a pocket calculator and turn it upside down: OhBSI — not quite a word, sorry.
  • ➕ As a number, 15,840 = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 11. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110111100000
  • 🏠 Its numerical neighbours: 15834 (Emporium, PA, 34 mi away) and 15841 (Force, PA, 18 mi away).
  • 🔄 Backwards, 15840 becomes 04851 — and that is a real ZIP code: Matinicus, ME, 539 miles away.
  • 👥 59 other ZIP codes are made of exactly the same digits (01845, 01854, 04851, 05148, 05481, 05841, …). The farthest-flung twin is 85041 in Phoenix, AZ, 1,894 miles away.
  • 🧭 Farther north than 68% of all ZIP codes, and farther east than 77%.
  • 🎯1,040 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15840 and you would come out at 41.17°S, 101.18°E — 1,032 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 09m of daylight. Shortest: 9h 12m.
  • 📏 At 17.3 square miles of land, 15840 is bigger than 35% of ZIP codes — room for about 13 Central Parks.
🌙 The sky over 15840 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,928This ZIP1,928
Households813This ZIP813
Housing units994This ZIP994
Median age43.0This ZIP43.0Pennsylvania40.9US 38.9
Median household income$57,344This ZIP$57,344Pennsylvania$77,971US $80,734
Median home value$123,100This ZIP$123,100Pennsylvania$254,500US $332,700
Median gross rent$963This ZIP$963Pennsylvania$1,209US $1,413
Bachelor's degree or higher23.6%This ZIP23.6%
Mean commute15.8 minThis ZIP15.8 min
Population density111.7 / sq miThis ZIP111.7 / sq mi

Business and tax activity

Business establishments39This ZIP39
Employees817This ZIP817
Annual payroll$27,785,000This ZIP$27,785,000
Tax returns filed960This ZIP960
Total adjusted gross income$54,467,000This ZIP$54,467,000

Land area

Land area17.26 sq miThis ZIP17.26 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

Counties 15840 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Jefferson County 97.0%
Clearfield County 3.0%

Other place names in 15840

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 15840

ZIPCityDistance
15824 Brockway, PA 5.2 mi
15801 Du Bois, PA 5.7 mi
15851 Reynoldsville, PA 6.6 mi
15823 Brockport, PA 8.2 mi
15865 Sykesville, PA 8.4 mi
15866 Troutville, PA 10.0 mi
15863 Stump Creek, PA 10.8 mi
15825 Brookville, PA 11.3 mi
15848 Luthersburg, PA 11.4 mi
15847 Knox Dale, PA 12.3 mi

Find every ZIP code within 10 miles of 15840 →

Questions about this ZIP code

Where is ZIP code 15840?

15840 is in Falls Creek, Pennsylvania, in Jefferson County. Its published point location is 41.1720, -78.8226.

What county is 15840 in?

15840 spans 2 counties: Jefferson County and Clearfield 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 15840?

Falls Creek uses area code 814, from NANPA's telephone records.

What time zone is 15840 in?

15840 uses America/New_York.

How many people live in 15840?

About 1,928 people live in ZIP code 15840, in 813 households, at 111.7 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 15840?

$57,344 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15840?

The closest are 15824 (5.2 mi), 15801 (5.7 mi), 15851 (6.6 mi), 15823 (8.2 mi) and 15865 (8.4 mi).

Is 15840 a PO Box ZIP code?

15840 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “15840 ZIP Code — Falls Creek, Pennsylvania (Jefferson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15840

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/15840.json

Underlying data is public domain or openly licensed — sources, vintages and licences.