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zipcodes.pro — ZIP/19539

19539

ZIP 19539 is Mertztown, Pennsylvania, mostly in Berks County; area codes 610 and 484; Eastern time.

Type
Standard
Time zone
America/New_York
County
Berks +1 more
Metro area
Reading, PA
Population
3,823
Coordinates
40.4963, -75.6836
☼ Live from 19539 — Mertztown, PA

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Where 19539 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 19539
  • 🔢 Type 19539 into a pocket calculator and turn it upside down: GESGI — not quite a word, sorry.
  • ➕ As a number, 19,539 = 3 × 3 × 13 × 167. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100110001010011
  • 🏠 Its numerical neighbours: 19538 (Maxatawny, PA, 4 mi away) and 19540 (Mohnton, PA, 23 mi away).
  • 🔄 Backwards, 19539 becomes 93591 — and that is a real ZIP code: Palmdale, CA, 2,321 miles away.
  • 👥 24 other ZIP codes are made of exactly the same digits (13599, 19395, 19953, 31599, 31995, 39159, …). The farthest-flung twin is 99513 in Anchorage, AK, 3,318 miles away.
  • 🧭 Farther north than 61% of all ZIP codes, and farther east than 86%.
  • 🎯1,206 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 19539 and you would come out at 40.50°S, 104.32°E — 872 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 16m.
  • 📏 At 21.6 square miles of land, 19539 is bigger than 39% of ZIP codes — room for about 16 Central Parks.
🌙 The sky over 19539 today
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🌋 Shake report
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Source: USGS.

People and housing

Population3,823This ZIP3,823
Households1,489This ZIP1,489
Housing units1,507This ZIP1,507
Median age47.0This ZIP47.0Pennsylvania40.9US 38.9
Median household income$107,656This ZIP$107,656Pennsylvania$77,971US $80,734
Median home value$266,700This ZIP$266,700Pennsylvania$254,500US $332,700
Median gross rent$1,188This ZIP$1,188Pennsylvania$1,209US $1,413
Bachelor's degree or higher27.3%This ZIP27.3%
Mean commute21.9 minThis ZIP21.9 min
Population density176.7 / sq miThis ZIP176.7 / sq mi

Business and tax activity

Business establishments48This ZIP48
Employees303This ZIP303
Annual payroll$11,934,000This ZIP$11,934,000
Tax returns filed2,360This ZIP2,360
Total adjusted gross income$192,154,000This ZIP$192,154,000

Land area

Land area21.63 sq miThis ZIP21.63 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Counties 19539 spans

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

CountyShare of this ZIP
Berks County 94.8%
Lehigh County 5.2%

Other place names in 19539

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

ZIP codes near 19539

ZIPCityDistance
19562 Topton, PA 1.1 mi
18011 Alburtis, PA 2.4 mi
19511 Bowers, PA 3.2 mi
19538 Maxatawny, PA 3.7 mi
19536 Lyon Station, PA 4.1 mi
18031 Breinigsville, PA 4.7 mi
18062 Macungie, PA 5.5 mi
19530 Kutztown, PA 5.9 mi
18087 Trexlertown, PA 6.3 mi
18195 Allentown, PA 6.8 mi

Find every ZIP code within 10 miles of 19539 →

Questions about this ZIP code

Where is ZIP code 19539?

19539 is in Mertztown, Pennsylvania, in Berks County, part of the Reading, PA metropolitan area. Its published point location is 40.4963, -75.6836.

What county is 19539 in?

19539 spans 2 counties: Berks County and Lehigh County. Most of it falls in Berks 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 19539?

Mertztown uses area codes 610 and 484, from NANPA's telephone records.

What time zone is 19539 in?

19539 uses America/New_York.

How many people live in 19539?

About 3,823 people live in ZIP code 19539, in 1,489 households, at 176.7 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 19539?

$107,656 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 19539?

The closest are 19562 (1.1 mi), 18011 (2.4 mi), 19511 (3.2 mi), 19538 (3.7 mi) and 19536 (4.1 mi).

Is 19539 a PO Box ZIP code?

19539 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “19539 ZIP Code — Mertztown, Pennsylvania (Berks County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19539

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