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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/13784

13784

ZIP 13784 is Harford, New York, in Cortland County; area code 607; Eastern time.

Type
Standard
Time zone
America/New_York
County
Cortland
Metro area
Cortland, NY
Population
382
Coordinates
42.4353, -76.2177
☼ Live from 13784 — Harford, NY

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Local time: —

Where 13784 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 13784
  • 🔢 Type 13784 into a pocket calculator and turn it upside down: hBLEI — not quite a word, sorry.
  • ➕ As a number, 13,784 = 2 × 2 × 2 × 1723. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11010111011000
  • 🏠 Its numerical neighbours: 13783 (Hancock, NY, 58 mi away) and 13786 (Harpersfield, NY, 77 mi away).
  • 🔄 Backwards, 13784 becomes 48731 — and that is a real ZIP code: Elkton, MI, 363 miles away.
  • 👥 46 other ZIP codes are made of exactly the same digits (13478, 13748, 13847, 14738, 14783, 14837, …). The farthest-flung twin is 83714 in Garden City, ID, 2,004 miles away.
  • 🧭 Farther north than 79% of all ZIP codes, and farther east than 84%.
  • 🎯1,174 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 13784 and you would come out at 42.44°S, 103.78°E — 981 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 18m of daylight. Shortest: 9h 04m.
  • 📏 At 1.0 square miles of land, 13784 is bigger than 8% of ZIP codes — about 499 football fields.
🌙 The sky over 13784 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population382This ZIP382
Households153This ZIP153
Housing units153This ZIP153
Median age46.6This ZIP46.6New York39.8US 38.9
Median household income$76,446This ZIP$76,446New York$85,974US $80,734
Median gross rent$1,093This ZIP$1,093New York$1,621US $1,413
Bachelor's degree or higher3.5%This ZIP3.5%
Mean commute24.2 minThis ZIP24.2 min
Population density370.9 / sq miThis ZIP370.9 / sq mi

Business and tax activity

Business establishments5This ZIP5
Employees9This ZIP9
Annual payroll$1,082,000This ZIP$1,082,000

Land area

Land area1.03 sq miThis ZIP1.03 sq mi
Water area0.00 sq mi

ZIP codes near 13784

ZIPCityDistance
13053 Dryden, NY 4.0 mi
13835 Richford, NY 4.1 mi
14881 Slaterville Springs, NY 7.6 mi
13736 Berkshire, NY 7.8 mi
14817 Brooktondale, NY 8.0 mi
13068 Freeville, NY 8.2 mi
13803 Marathon, NY 8.5 mi
13102 Mc Lean, NY 8.8 mi
13062 Etna, NY 9.1 mi
13738 Blodgett Mills, NY 10.1 mi

Find every ZIP code within 10 miles of 13784 →

Questions about this ZIP code

Where is ZIP code 13784?

13784 is in Harford, New York, in Cortland County, part of the Cortland, NY micropolitan area. Its published point location is 42.4353, -76.2177.

What county is 13784 in?

13784 lies in Cortland County.

What area code is 13784?

Harford uses area code 607, from NANPA's telephone records.

What time zone is 13784 in?

13784 uses America/New_York.

How many people live in 13784?

About 382 people live in ZIP code 13784, in 153 households, at 370.9 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 13784?

$76,446 a year, against $85,974 across New York.

What ZIP codes are near 13784?

The closest are 13053 (4 mi), 13835 (4.1 mi), 14881 (7.6 mi), 13736 (7.8 mi) and 14817 (8 mi).

Is 13784 a PO Box ZIP code?

13784 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “13784 ZIP Code — Harford, New York (Cortland County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/13784

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