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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/13647

13647

ZIP 13647 is Hannawa Falls, New York, in St. Lawrence County; area codes 315 and 680; Eastern time.

Type
Standard
Time zone
America/New_York
County
St. Lawrence
Population
26
Coordinates
44.6017, -74.9927
☼ Live from 13647 — Hannawa Falls, NY

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Where 13647 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 13647
  • 🔢 Type 13647 into a pocket calculator and turn it upside down: LhgEI — not quite a word, sorry.
  • ➕ As a number, 13,647 = 3 × 4549. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11010101001111
  • 🏠 Its numerical neighbours: 13646 (Hammond, NY, 36 mi away) and 13648 (Harrisville, NY, 35 mi away).
  • 🔄 Backwards, 13647 becomes 74631 — and that is a real ZIP code: Blackwell, OK, 1,282 miles away.
  • 👥 57 other ZIP codes are made of exactly the same digits (13476, 13674, 13746, 14736, 16347, 16374, …). The farthest-flung twin is 76134 in Fort Worth, TX, 1,454 miles away.
  • 🧭 Farther north than 90% of all ZIP codes, and farther east than 88%.
  • 🎯1,246 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 13647 and you would come out at 44.60°S, 105.01°E — 1,052 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 34m of daylight. Shortest: 8h 49m.
  • 📏 At 1.4 square miles of land, 13647 is bigger than 10% of ZIP codes — room for about 1.1 Central Parks.
🌙 The sky over 13647 today
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🌋 Shake report
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Source: USGS.

People and housing

Population26This ZIP26
Households15This ZIP15
Housing units15This ZIP15
Median age83.3This ZIP83.3New York39.8US 38.9
Bachelor's degree or higher0.0%
Population density18.1 / sq miThis ZIP18.1 / sq mi

Business and tax activity

Business establishments7This ZIP7
Employees67This ZIP67
Annual payroll$2,170,000This ZIP$2,170,000

Land area

Land area1.43 sq miThis ZIP1.43 sq mi
Water area0.00 sq mi

Other place names in 13647

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

ZIP codes near 13647

ZIPCityDistance
13699 Potsdam, NY 4.3 mi
13676 Potsdam, NY 5.5 mi
13625 Colton, NY 5.8 mi
13617 Canton, NY 7.5 mi
13696 West Stockholm, NY 8.7 mi
13668 Norwood, NY 10.6 mi
13677 Pyrites, NY 11.2 mi
13687 South Colton, NY 13.6 mi
13697 Winthrop, NY 13.9 mi
13667 Norfolk, NY 14.0 mi

Find every ZIP code within 10 miles of 13647 →

Questions about this ZIP code

Where is ZIP code 13647?

13647 is in Hannawa Falls, New York, in St. Lawrence County, part of the Massena-Ogdensburg, NY micropolitan area. Its published point location is 44.6017, -74.9927.

What county is 13647 in?

13647 lies in St. Lawrence County.

What area code is 13647?

Hannawa Falls uses area codes 315 and 680, from NANPA's telephone records.

What time zone is 13647 in?

13647 uses America/New_York.

How many people live in 13647?

About 26 people live in ZIP code 13647, in 15 households, at 18.1 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 13647?

The closest are 13699 (4.3 mi), 13676 (5.5 mi), 13625 (5.8 mi), 13617 (7.5 mi) and 13696 (8.7 mi).

Is 13647 a PO Box ZIP code?

13647 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “13647 ZIP Code — Hannawa Falls, New York (St. Lawrence County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/13647

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