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zipcodes.pro — ZIP/18421

18421

ZIP 18421 is Forest City, Pennsylvania, mostly in Susquehanna County; area code 570; Eastern time.

Type
Standard
Time zone
America/New_York
County
Susquehanna +2 more
Metro area
none
Population
4,603
Coordinates
41.6642, -75.4929
☼ Live from 18421 — Forest City, PA

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Local time: —

Where 18421 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 18421
  • 🔢 Type 18421 into a pocket calculator and turn it upside down: IZhBI — not quite a word, sorry.
  • ➕ As a number, 18,421 = 13 × 13 × 109. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100011111110101
  • 🏠 Its numerical neighbours: 18420 (Fleetville, PA, 11 mi away) and 18424 (Gouldsboro, PA, 29 mi away).
  • 🔄 Backwards, 18421 becomes 12481 — and that is a real ZIP code: Shokan, NY, 69 miles away.
  • 👥 28 other ZIP codes are made of exactly the same digits (11428, 12148, 12184, 12418, 12481, 12814, …). The farthest-flung twin is 84112 in Salt Lake City, UT, 1,876 miles away.
  • 🧭 Farther north than 72% of all ZIP codes, and farther east than 86%.
  • 🎯1,211 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 18421 and you would come out at 41.66°S, 104.51°E — 917 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
  • 📏 At 37.3 square miles of land, 18421 is bigger than 51% of ZIP codes — room for about 28 Central Parks.
🌙 The sky over 18421 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population4,603This ZIP4,603
Households1,902This ZIP1,902
Housing units2,204This ZIP2,204
Median age43.2This ZIP43.2Pennsylvania40.9US 38.9
Median household income$68,256This ZIP$68,256Pennsylvania$77,971US $80,734
Median home value$171,400This ZIP$171,400Pennsylvania$254,500US $332,700
Median gross rent$866This ZIP$866Pennsylvania$1,209US $1,413
Bachelor's degree or higher19.5%This ZIP19.5%
Mean commute25.3 minThis ZIP25.3 min
Population density123.4 / sq miThis ZIP123.4 / sq mi

Business and tax activity

Business establishments77This ZIP77
Employees546This ZIP546
Annual payroll$20,671,000This ZIP$20,671,000
Tax returns filed2,240This ZIP2,240
Total adjusted gross income$137,049,000This ZIP$137,049,000

Land area

Land area37.29 sq miThis ZIP37.29 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

Counties 18421 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Susquehanna County 46.8%
Wayne County 45.3%
Lackawanna County 7.9%

Other place names in 18421

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

ZIP codes near 18421

ZIPCityDistance
18413 Clifford, PA 2.4 mi
18470 Union Dale, PA 5.2 mi
18430 Herrick Center, PA 5.4 mi
18407 Carbondale, PA 5.5 mi
18441 Lenoxville, PA 6.5 mi
18472 Waymart, PA 7.1 mi
18433 Jermyn, PA 7.8 mi
18453 Pleasant Mount, PA 8.6 mi
18456 Prompton, PA 8.6 mi
18842 South Gibson, PA 9.5 mi

Find every ZIP code within 10 miles of 18421 →

Questions about this ZIP code

Where is ZIP code 18421?

18421 is in Forest City, Pennsylvania, in Susquehanna County. Its published point location is 41.6642, -75.4929.

What county is 18421 in?

18421 spans 3 counties: Susquehanna County, Wayne County and Lackawanna County. Most of it falls in Susquehanna County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 18421?

Forest City uses area code 570, from NANPA's telephone records.

What time zone is 18421 in?

18421 uses America/New_York.

How many people live in 18421?

About 4,603 people live in ZIP code 18421, in 1,902 households, at 123.4 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 18421?

$68,256 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 18421?

The closest are 18413 (2.4 mi), 18470 (5.2 mi), 18430 (5.4 mi), 18407 (5.5 mi) and 18441 (6.5 mi).

Is 18421 a PO Box ZIP code?

18421 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “18421 ZIP Code — Forest City, Pennsylvania (Susquehanna County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18421

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