16057
ZIP 16057 is Slippery Rock, Pennsylvania, mostly in Butler County; area codes 724 and 878; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Butler +2 more
- Metro area
- Pittsburgh, PA
- Population
- 15,718
- Coordinates
- 41.0341, -80.0603
Weather right now
Asking the National Weather Service…
Where 16057 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 16057 into a pocket calculator and turn it upside down: LSOgI — not quite a word, sorry.
- ➕ 16057 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11111010111001 - 🏠 Its numerical neighbours: 16056 (Saxonburg, PA, 24 mi away) and 16058 (Turkey City, PA, 26 mi away).
- 🔄 Backwards, 16057 becomes 75061 — and that is a real ZIP code: Irving, TX, 1,090 miles away.
- 👥 61 other ZIP codes are made of exactly the same digits (01756, 05671, 05761, 06517, 06751, 10567, …). The farthest-flung twin is 76501 in Temple, TX, 1,178 miles away.
- 🧭 Farther north than 67% of all ZIP codes, and farther east than 74%.
- 🎯976 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 16057 and you would come out at 41.03°S, 99.94°E — 1,082 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
- 📏 At 88.7 square miles of land, 16057 is bigger than 75% of ZIP codes — room for about 67 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 15,718This ZIP15,718 |
|---|---|
| Households | 5,194This ZIP5,194 |
| Housing units | 6,151This ZIP6,151 |
| Median age | 25.9This ZIP25.9Pennsylvania40.9US 38.9 |
| Median household income | $58,288This ZIP$58,288Pennsylvania$77,971US $80,734 |
| Median home value | $242,900This ZIP$242,900Pennsylvania$254,500US $332,700 |
| Median gross rent | $877This ZIP$877Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 25.7%This ZIP25.7% |
| Mean commute | 26.9 minThis ZIP26.9 min |
| Population density | 177.3 / sq miThis ZIP177.3 / sq mi |
Business and tax activity
| Business establishments | 227This ZIP227 |
|---|---|
| Employees | 2,594This ZIP2,594 |
| Annual payroll | $116,954,000This ZIP$116,954,000 |
| Tax returns filed | 4,930This ZIP4,930 |
| Total adjusted gross income | $351,739,000This ZIP$351,739,000 |
Land area
| Land area | 88.67 sq miThis ZIP88.67 sq mi |
|---|---|
| Water area | 0.65 sq miThis ZIP0.65 sq mi |
Counties 16057 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 | 86.3% |
| Lawrence County | 12.6% |
| Mercer County | 1.1% |
Other place names in 16057
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 16057
| ZIP | City | Distance |
|---|---|---|
16021 | Branchton, PA | 4.7 mi |
16035 | Forestville, PA | 5.6 mi |
16051 | Portersville, PA | 7.5 mi |
16052 | Prospect, PA | 9.3 mi |
16061 | West Sunbury, PA | 9.4 mi |
16127 | Grove City, PA | 9.6 mi |
16156 | Volant, PA | 9.8 mi |
16016 | Boyers, PA | 9.9 mi |
16020 | Boyers, PA | 10.3 mi |
16017 | Boyers, PA | 10.4 mi |
Find every ZIP code within 10 miles of 16057 →
Questions about this ZIP code
Where is ZIP code 16057?
16057 is in Slippery Rock, Pennsylvania, in Butler County, part of the Pittsburgh, PA metropolitan area. Its published point location is 41.0341, -80.0603.
What county is 16057 in?
16057 spans 3 counties: Butler County, Lawrence County and Mercer 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 16057?
Slippery Rock uses area codes 724 and 878, from NANPA's telephone records.
What time zone is 16057 in?
16057 uses America/New_York.
How many people live in 16057?
About 15,718 people live in ZIP code 16057, in 5,194 households, at 177.3 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 16057?
$58,288 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 16057?
The closest are 16021 (4.7 mi), 16035 (5.6 mi), 16051 (7.5 mi), 16052 (9.3 mi) and 16061 (9.4 mi).
Is 16057 a PO Box ZIP code?
16057 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “16057 ZIP Code — Slippery Rock, Pennsylvania (Butler County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/16057
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/16057.json Underlying data is public domain or openly licensed — sources, vintages and licences.