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/18977

18977

ZIP 18977 is Washington Crossing, Pennsylvania, in Bucks County; area codes 267, 215 and 445; Eastern time.

Type
Standard
Time zone
America/New_York
County
Bucks
Population
4,569
Coordinates
40.2842, -74.8742
☼ Live from 18977 — Washington Crossing, PA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 18977 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 18977
  • 🔢 Type 18977 into a pocket calculator and turn it upside down: LLGBI — not quite a word, sorry.
  • ➕ As a number, 18,977 = 7 × 2711. Its digits add up to 32, a total 644 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100101000100001
  • 🏠 Its numerical neighbours: 18976 (Warrington, PA, 14 mi away) and 18979 (Woxall, PA, 30 mi away).
  • 🔄 Backwards, 18977 becomes 77981, which is not a ZIP code at all.
  • 👥 10 other ZIP codes are made of exactly the same digits (17978, 78719, 79178, 79718, 79781, 87197, …). The farthest-flung twin is 91778 in San Gabriel, CA, 2,394 miles away.
  • 🧭 Farther north than 59% of all ZIP codes, and farther east than 88%.
  • 🎯1,250 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 18977 and you would come out at 40.28°S, 105.13°E — 830 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 18m.
  • 📏 At 4.4 square miles of land, 18977 is bigger than 18% of ZIP codes — room for about 3.3 Central Parks.
🌙 The sky over 18977 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,569This ZIP4,569
Households1,819This ZIP1,819
Housing units1,837This ZIP1,837
Median age56.4This ZIP56.4Pennsylvania40.9US 38.9
Median household income$211,719This ZIP$211,719Pennsylvania$77,971US $80,734
Median home value$736,200This ZIP$736,200Pennsylvania$254,500US $332,700
Bachelor's degree or higher73.5%This ZIP73.5%
Mean commute30.5 minThis ZIP30.5 min
Population density1,040.5 / sq miThis ZIP1,040.5 / sq mi

Business and tax activity

Business establishments121This ZIP121
Employees836This ZIP836
Annual payroll$39,521,000This ZIP$39,521,000
Tax returns filed2,230This ZIP2,230
Total adjusted gross income$516,954,000This ZIP$516,954,000

Land area

Land area4.39 sq miThis ZIP4.39 sq mi
Water area0.45 sq miThis ZIP0.45 sq mi

ZIP codes near 18977

ZIPCityDistance
08560 Titusville, NJ 2.3 mi
08628 Trenton, NJ 2.8 mi
18940 Newtown, PA 3.7 mi
19067 Morrisville, PA 3.8 mi
08618 Trenton, NJ 5.0 mi
08534 Pennington, NJ 5.3 mi
08638 Trenton, NJ 6.2 mi
08530 Lambertville, NJ 6.2 mi
18946 Pineville, PA 6.9 mi
18943 Penns Park, PA 7.2 mi

Find every ZIP code within 10 miles of 18977 →

Questions about this ZIP code

Where is ZIP code 18977?

18977 is in Washington Crossing, Pennsylvania, in Bucks County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 40.2842, -74.8742.

What county is 18977 in?

18977 lies in Bucks County.

What area code is 18977?

Washington Crossing uses area codes 267, 215 and 445, from NANPA's telephone records.

What time zone is 18977 in?

18977 uses America/New_York.

How many people live in 18977?

About 4,569 people live in ZIP code 18977, in 1,819 households, at 1,040.5 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 18977?

$211,719 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 18977?

The closest are 08560 (2.3 mi), 08628 (2.8 mi), 18940 (3.7 mi), 19067 (3.8 mi) and 08618 (5 mi).

Is 18977 a PO Box ZIP code?

18977 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “18977 ZIP Code — Washington Crossing, Pennsylvania (Bucks County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18977

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/18977.json

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