19540
ZIP 19540 is Mohnton, Pennsylvania, mostly in Berks County; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Berks +1 more
- Metro area
- Reading, PA
- Population
- 11,957
- Coordinates
- 40.2363, -75.9666
Weather right now
Asking the National Weather Service…
Where 19540 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.
- 🔢 Type 19540 into a pocket calculator and turn it upside down: OhSGI — not quite a word, sorry.
- ➕ As a number, 19,540 = 2 × 2 × 5 × 977. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100110001010100 - 🏠 Its numerical neighbours: 19539 (Mertztown, PA, 23 mi away) and 19541 (Mohrsville, PA, 17 mi away).
- 🔄 Backwards, 19540 becomes 04591, which is not a ZIP code at all.
- 👥 52 other ZIP codes are made of exactly the same digits (01945, 04915, 04951, 05149, 05491, 09154, …). The farthest-flung twin is 09154 in APO AE, a military post office, 4,014 miles away.
- 🧭 Farther north than 59% of all ZIP codes, and farther east than 85%.
- 🎯1,193 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 19540 and you would come out at 40.24°S, 104.03°E — 872 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 02m of daylight. Shortest: 9h 18m.
- 📏 At 35.2 square miles of land, 19540 is bigger than 50% of ZIP codes — room for about 27 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 11,957This ZIP11,957 |
|---|---|
| Households | 4,330This ZIP4,330 |
| Housing units | 4,590This ZIP4,590 |
| Median age | 41.2This ZIP41.2Pennsylvania40.9US 38.9 |
| Median household income | $100,000This ZIP$100,000Pennsylvania$77,971US $80,734 |
| Median home value | $319,600This ZIP$319,600Pennsylvania$254,500US $332,700 |
| Median gross rent | $1,139This ZIP$1,139Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 34.1%This ZIP34.1% |
| Mean commute | 26.9 minThis ZIP26.9 min |
| Population density | 339.6 / sq miThis ZIP339.6 / sq mi |
Business and tax activity
| Business establishments | 189This ZIP189 |
|---|---|
| Employees | 1,882This ZIP1,882 |
| Annual payroll | $93,045,000This ZIP$93,045,000 |
| Tax returns filed | 6,090This ZIP6,090 |
| Total adjusted gross income | $584,224,000This ZIP$584,224,000 |
Land area
| Land area | 35.21 sq miThis ZIP35.21 sq mi |
|---|---|
| Water area | 0.19 sq miThis ZIP0.19 sq mi |
Counties 19540 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Berks County | 90.0% |
| Lancaster County | 10.0% |
Other place names in 19540
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 19540
| ZIP | City | Distance |
|---|---|---|
17507 | Bowmansville, PA | 3.7 mi |
19607 | Reading, PA | 4.0 mi |
19501 | Adamstown, PA | 5.2 mi |
19543 | Morgantown, PA | 5.6 mi |
19611 | Reading, PA | 6.2 mi |
19608 | Reading, PA | 6.5 mi |
19609 | Reading, PA | 6.5 mi |
19523 | Geigertown, PA | 6.6 mi |
19602 | Reading, PA | 6.8 mi |
17519 | East Earl, PA | 7.2 mi |
Find every ZIP code within 10 miles of 19540 →
Questions about this ZIP code
Where is ZIP code 19540?
19540 is in Mohnton, Pennsylvania, in Berks County, part of the Reading, PA metropolitan area. Its published point location is 40.2363, -75.9666.
What county is 19540 in?
19540 spans 2 counties: Berks County and Lancaster 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 time zone is 19540 in?
19540 uses America/New_York.
How many people live in 19540?
About 11,957 people live in ZIP code 19540, in 4,330 households, at 339.6 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 19540?
$100,000 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 19540?
The closest are 17507 (3.7 mi), 19607 (4 mi), 19501 (5.2 mi), 19543 (5.6 mi) and 19611 (6.2 mi).
Is 19540 a PO Box ZIP code?
19540 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “19540 ZIP Code — Mohnton, Pennsylvania (Berks County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/19540
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/19540.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.