18951
ZIP 18951 is Quakertown, Pennsylvania, mostly in Bucks County; area codes 267, 445 and 215; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Bucks +1 more
- Metro area
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
- Population
- 36,568
- Coordinates
- 40.4592, -75.3474
Weather right now
Asking the National Weather Service…
Where 18951 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 18951 into a pocket calculator and turn it upside down: ISGBI — not quite a word, sorry.
- ➕ As a number, 18,951 = 3 × 6317. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100101000000111 - 🏠 Its numerical neighbours: 18950 (Point Pleasant, PA, 15 mi away) and 18953 (Revere, PA, 11 mi away).
- 🔄 Backwards, 18951 becomes 15981, which is not a ZIP code at all.
- 👥 18 other ZIP codes are made of exactly the same digits (11598, 11958, 18195, 18519, 18915, 19185, …). The farthest-flung twin is 95118 in San Jose, CA, 2,485 miles away.
- 🧭 Farther north than 61% of all ZIP codes, and farther east than 87%.
- 🎯1,224 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 18951 and you would come out at 40.46°S, 104.65°E — 857 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 17m.
- 📏 At 71.7 square miles of land, 18951 is bigger than 69% of ZIP codes — room for about 54 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 36,568This ZIP36,568 |
|---|---|
| Households | 14,202This ZIP14,202 |
| Housing units | 14,881This ZIP14,881 |
| Median age | 44.2This ZIP44.2Pennsylvania40.9US 38.9 |
| Median household income | $98,268This ZIP$98,268Pennsylvania$77,971US $80,734 |
| Median home value | $363,200This ZIP$363,200Pennsylvania$254,500US $332,700 |
| Median gross rent | $1,441This ZIP$1,441Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 32.5%This ZIP32.5% |
| Mean commute | 28.3 minThis ZIP28.3 min |
| Population density | 510.1 / sq miThis ZIP510.1 / sq mi |
Business and tax activity
| Business establishments | 1,015This ZIP1,015 |
|---|---|
| Employees | 15,471This ZIP15,471 |
| Annual payroll | $781,019,000This ZIP$781,019,000 |
| Tax returns filed | 18,480This ZIP18,480 |
| Total adjusted gross income | $1,553,976,000This ZIP$1,553,976,000 |
Land area
| Land area | 71.69 sq miThis ZIP71.69 sq mi |
|---|---|
| Water area | 1.54 sq miThis ZIP1.54 sq mi |
Counties 18951 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Bucks County | 99.6% |
| Lehigh County | 0.4% |
Other place names in 18951
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 18951
| ZIP | City | Distance |
|---|---|---|
18955 | Richlandtown, PA | 2.5 mi |
18981 | Zionhill, PA | 3.0 mi |
18935 | Milford Square, PA | 3.1 mi |
18970 | Trumbauersville, PA | 3.7 mi |
18036 | Coopersburg, PA | 4.1 mi |
18968 | Spinnerstown, PA | 4.9 mi |
18060 | Limeport, PA | 6.3 mi |
18960 | Sellersville, PA | 6.5 mi |
18034 | Center Valley, PA | 6.8 mi |
18944 | Perkasie, PA | 7.5 mi |
Find every ZIP code within 10 miles of 18951 →
Questions about this ZIP code
Where is ZIP code 18951?
18951 is in Quakertown, Pennsylvania, in Bucks County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan area. Its published point location is 40.4592, -75.3474.
What county is 18951 in?
18951 spans 2 counties: Bucks County and Lehigh County. Most of it falls in Bucks 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 18951?
Quakertown uses area codes 267, 445 and 215, from NANPA's telephone records.
What time zone is 18951 in?
18951 uses America/New_York.
How many people live in 18951?
About 36,568 people live in ZIP code 18951, in 14,202 households, at 510.1 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 18951?
$98,268 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 18951?
The closest are 18955 (2.5 mi), 18981 (3 mi), 18935 (3.1 mi), 18970 (3.7 mi) and 18036 (4.1 mi).
Is 18951 a PO Box ZIP code?
18951 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “18951 ZIP Code — Quakertown, Pennsylvania (Bucks County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/18951
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/18951.json Underlying data is public domain or openly licensed — sources, vintages and licences.