16051
ZIP 16051 is Portersville, Pennsylvania, mostly in Butler County; area code 724; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Butler +1 more
- Metro area
- Pittsburgh, PA
- Population
- 3,119
- Coordinates
- 40.9427, -80.1388
Weather right now
Asking the National Weather Service…
Where 16051 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 16051 into a pocket calculator and turn it upside down: ISOgI — not quite a word, sorry.
- ➕ As a number, 16,051 = 7 × 2293. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11111010110011 - 🏠 Its numerical neighbours: 16050 (Petrolia, PA, 21 mi away) and 16052 (Prospect, PA, 5 mi away).
- 🔄 Backwards, 16051 becomes 15061 — and that is a real ZIP code: Monaca, PA, 21 miles away.
- 👥 39 other ZIP codes are made of exactly the same digits (01516, 01561, 01615, 05161, 06115, 06151, …). The farthest-flung twin is 51106 in Sioux City, IA, 840 miles away.
- 🧭 Farther north than 66% of all ZIP codes, and farther east than 73%.
- 🎯972 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 16051 and you would come out at 40.94°S, 99.86°E — 1,082 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 07m of daylight. Shortest: 9h 14m.
- 📏 At 39.8 square miles of land, 16051 is bigger than 53% of ZIP codes — room for about 30 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,119This ZIP3,119 |
|---|---|
| Households | 1,315This ZIP1,315 |
| Housing units | 1,395This ZIP1,395 |
| Median age | 45.4This ZIP45.4Pennsylvania40.9US 38.9 |
| Median household income | $88,958This ZIP$88,958Pennsylvania$77,971US $80,734 |
| Median home value | $215,600This ZIP$215,600Pennsylvania$254,500US $332,700 |
| Median gross rent | $964This ZIP$964Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 30.5%This ZIP30.5% |
| Mean commute | 27.8 minThis ZIP27.8 min |
| Population density | 78.3 / sq miThis ZIP78.3 / sq mi |
Business and tax activity
| Business establishments | 91This ZIP91 |
|---|---|
| Employees | 1,136This ZIP1,136 |
| Annual payroll | $50,672,000This ZIP$50,672,000 |
| Tax returns filed | 1,380This ZIP1,380 |
| Total adjusted gross income | $127,283,000This ZIP$127,283,000 |
Land area
| Land area | 39.83 sq miThis ZIP39.83 sq mi |
|---|---|
| Water area | 3.06 sq miThis ZIP3.06 sq mi |
Counties 16051 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Butler County | 59.5% |
| Lawrence County | 40.5% |
Other place names in 16051
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 16051
| ZIP | City | Distance |
|---|---|---|
16052 | Prospect, PA | 5.0 mi |
16037 | Harmony, PA | 6.9 mi |
16057 | Slippery Rock, PA | 7.5 mi |
16117 | Ellwood City, PA | 7.8 mi |
16101 | New Castle, PA | 8.4 mi |
16123 | Fombell, PA | 8.9 mi |
16103 | New Castle, PA | 9.4 mi |
16107 | New Castle, PA | 9.4 mi |
16108 | New Castle, PA | 9.4 mi |
16001 | Butler, PA | 10.4 mi |
Find every ZIP code within 10 miles of 16051 →
Questions about this ZIP code
Where is ZIP code 16051?
16051 is in Portersville, Pennsylvania, in Butler County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.9427, -80.1388.
What county is 16051 in?
16051 spans 2 counties: Butler County and Lawrence County. Most of it falls in Butler 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 16051?
Portersville uses area code 724, from NANPA's telephone records.
What time zone is 16051 in?
16051 uses America/New_York.
How many people live in 16051?
About 3,119 people live in ZIP code 16051, in 1,315 households, at 78.3 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 16051?
$88,958 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 16051?
The closest are 16052 (5 mi), 16037 (6.9 mi), 16057 (7.5 mi), 16117 (7.8 mi) and 16101 (8.4 mi).
Is 16051 a PO Box ZIP code?
16051 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “16051 ZIP Code — Portersville, Pennsylvania (Butler County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/16051
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/16051.json Underlying data is public domain or openly licensed — sources, vintages and licences.