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/15673

15673

ZIP 15673 is North Apollo, Pennsylvania, in Armstrong County; area code 724; Eastern time.

Type
Standard
Time zone
America/New_York
County
Armstrong
Metro area
Pittsburgh, PA
Population
1,156
Coordinates
40.5938, -79.5566
☼ Live from 15673 — North Apollo, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 15673 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 15673
  • 🔢 Type 15673 into a pocket calculator and turn it upside down: ELgSI — not quite a word, sorry.
  • ➕ As a number, 15,673 = 7 × 2239. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110100111001
  • 🏠 Its numerical neighbours: 15672 (New Stanton, PA, 24 mi away) and 15674 (Norvelt, PA, 27 mi away).
  • 🔄 Backwards, 15673 becomes 37651, which is not a ZIP code at all.
  • 👥 62 other ZIP codes are made of exactly the same digits (13657, 13675, 13756, 15367, 15376, 15637, …). The farthest-flung twin is 76531 in Hamilton, TX, 1,204 miles away.
  • 🧭 Farther north than 62% of all ZIP codes, and farther east than 75%.
  • 🎯1,003 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15673 and you would come out at 40.59°S, 100.44°E — 1,043 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 16m.
  • 📏 At 0.540 square miles of land, 15673 is bigger than 6% of ZIP codes — about 261 football fields.
🌙 The sky over 15673 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,156This ZIP1,156
Households555This ZIP555
Housing units628This ZIP628
Median age48.8This ZIP48.8Pennsylvania40.9US 38.9
Median household income$66,629This ZIP$66,629Pennsylvania$77,971US $80,734
Median home value$140,600This ZIP$140,600Pennsylvania$254,500US $332,700
Median gross rent$775This ZIP$775Pennsylvania$1,209US $1,413
Bachelor's degree or higher16.3%This ZIP16.3%
Mean commute25.5 minThis ZIP25.5 min
Population density2,140.7 / sq miThis ZIP2,140.7 / sq mi

Business and tax activity

Business establishments25This ZIP25
Employees266This ZIP266
Annual payroll$11,075,000This ZIP$11,075,000

Land area

Land area0.54 sq miThis ZIP0.54 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Other place names in 15673

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

ZIP codes near 15673

ZIPCityDistance
15629 East Vandergrift, PA 0.4 mi
15641 Hyde Park, PA 3.1 mi
15613 Apollo, PA 3.3 mi
15690 Vandergrift, PA 3.3 mi
15656 Leechburg, PA 4.6 mi
15680 Salina, PA 5.9 mi
15618 Avonmore, PA 6.3 mi
15686 Spring Church, PA 6.4 mi
15682 Schenley, PA 7.0 mi
15681 Saltsburg, PA 8.8 mi

Find every ZIP code within 10 miles of 15673 →

Questions about this ZIP code

Where is ZIP code 15673?

15673 is in North Apollo, Pennsylvania, in Armstrong County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.5938, -79.5566.

What county is 15673 in?

15673 lies in Armstrong County.

What area code is 15673?

North Apollo uses area code 724, from NANPA's telephone records.

What time zone is 15673 in?

15673 uses America/New_York.

How many people live in 15673?

About 1,156 people live in ZIP code 15673, in 555 households, at 2,140.7 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 15673?

$66,629 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15673?

The closest are 15629 (0.4 mi), 15641 (3.1 mi), 15613 (3.3 mi), 15690 (3.3 mi) and 15656 (4.6 mi).

Is 15673 a PO Box ZIP code?

15673 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “15673 ZIP Code — North Apollo, Pennsylvania (Armstrong County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15673

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/15673.json

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