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/15857

15857

ZIP 15857 is Saint Marys, Pennsylvania, in Elk County; area codes 814 and 582; Eastern time.

Type
Standard
Time zone
America/New_York
County
Elk
Metro area
St. Marys, PA
Population
12,736
Coordinates
41.4550, -78.5202
☼ Live from 15857 — Saint Marys, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 15857 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 15857
  • 🔢 Type 15857 into a pocket calculator and turn it upside down: LSBSI — not quite a word, sorry.
  • ➕ As a number, 15,857 = 101 × 157. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110111110001
  • 🏠 Its numerical neighbours: 15856 (Rockton, PA, 26 mi away) and 15860 (Sigel, PA, 28 mi away).
  • 🔄 Backwards, 15857 becomes 75851 — and that is a real ZIP code: Lovelady, TX, 1,183 miles away.
  • 👥 18 other ZIP codes are made of exactly the same digits (15758, 17585, 17855, 51578, 55187, 55718, …). The farthest-flung twin is 85751 in Tucson, AZ, 1,889 miles away.
  • 🧭 Farther north than 70% of all ZIP codes, and farther east than 78%.
  • 🎯1,055 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15857 and you would come out at 41.46°S, 101.48°E — 1,030 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 11m of daylight. Shortest: 9h 10m.
  • 📏 At 100.5 square miles of land, 15857 is bigger than 78% of ZIP codes — room for about 76 Central Parks.
🌙 The sky over 15857 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population12,736This ZIP12,736
Households5,756This ZIP5,756
Housing units6,394This ZIP6,394
Median age50.9This ZIP50.9Pennsylvania40.9US 38.9
Median household income$67,662This ZIP$67,662Pennsylvania$77,971US $80,734
Median home value$150,100This ZIP$150,100Pennsylvania$254,500US $332,700
Median gross rent$762This ZIP$762Pennsylvania$1,209US $1,413
Bachelor's degree or higher21.5%This ZIP21.5%
Mean commute14.1 minThis ZIP14.1 min
Population density126.8 / sq miThis ZIP126.8 / sq mi

Business and tax activity

Business establishments475This ZIP475
Employees7,987This ZIP7,987
Annual payroll$403,208,000This ZIP$403,208,000
Tax returns filed6,540This ZIP6,540
Total adjusted gross income$455,421,000This ZIP$455,421,000

Land area

Land area100.46 sq miThis ZIP100.46 sq mi
Water area0.19 sq miThis ZIP0.19 sq mi

Other place names in 15857

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

ZIP codes near 15857

ZIPCityDistance
16728 De Young, PA 8.0 mi
15831 Dagus Mines, PA 8.3 mi
15821 Benezett, PA 8.6 mi
15846 Kersey, PA 9.2 mi
15870 Wilcox, PA 9.4 mi
15845 Johnsonburg, PA 10.3 mi
15834 Emporium, PA 10.7 mi
15827 Byrnedale, PA 11.1 mi
15868 Weedville, PA 12.1 mi
15822 Brandy Camp, PA 12.7 mi

Find every ZIP code within 10 miles of 15857 →

Questions about this ZIP code

Where is ZIP code 15857?

15857 is in Saint Marys, Pennsylvania, in Elk County, part of the St. Marys, PA micropolitan area. Its published point location is 41.4550, -78.5202.

What county is 15857 in?

15857 lies in Elk County.

What area code is 15857?

Saint Marys uses area codes 814 and 582, from NANPA's telephone records.

What time zone is 15857 in?

15857 uses America/New_York.

How many people live in 15857?

About 12,736 people live in ZIP code 15857, in 5,756 households, at 126.8 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 15857?

$67,662 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15857?

The closest are 16728 (8 mi), 15831 (8.3 mi), 15821 (8.6 mi), 15846 (9.2 mi) and 15870 (9.4 mi).

Is 15857 a PO Box ZIP code?

15857 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “15857 ZIP Code — Saint Marys, Pennsylvania (Elk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15857

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/15857.json

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