Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/PA/UNIONVILLE-3

Unionville ZIP codes, Pennsylvania

No ZIP code is named for Unionville, PA; addresses there use a neighbouring town's name. The ZIP code covering it is 16001. Its area codes are 724, 878 and 412.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
644
Area codes
724, 878, 412

NANPA lists no telephone rate centre for Unionville itself, so these are the area codes of the nearest one, Butler (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Unionville in numbers

About 644 people live in Unionville, in 332 households. The median household income is $58,235 a year, 25% below the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $94,400 (63% below the Pennsylvania median). The median age is 59.1; 8.7% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 32 minutes.

Population644Unionville644
Households332Unionville332
Median age59.1Unionville59.1Pennsylvania40.9US 38.9
Median household income$58,235Unionville$58,235Pennsylvania$77,971US $80,734
Median home value$94,400Unionville$94,400Pennsylvania$254,500US $332,700
Bachelor's degree or higher8.7%Unionville8.7%Pennsylvania35.2%US 35.7%
Mean commute31.7 minUnionville31.7 minPennsylvania26.3 minUS 26.4 min
Population density251 / sq miUnionville251 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Unionville CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Unionville

These ZIP codes cover part of Unionville but are addressed as somewhere else.

ZIP codes overlapping Unionville
ZIP City Type Population Median income Median home
16001 Butler , PA Standard 39,234 $63,635 $199,100

Map of Unionville ZIP codes

16001

The ZIP codes of Unionville, PA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Unionville

The nearest larger towns are Shanor-Northvue (5,125 people, 3.0 mi), Homeacre-Lyndora (6,783 people, 5.3 mi) and Prospect (1,157 people, 5.4 mi).

Towns near Unionville
TownPopulationDistance
Shanor-Northvue 5,125 3.0 mi
Homeacre-Lyndora 6,783 5.3 mi
Meridian 3,837 6.2 mi
Butler 13,212 6.5 mi
Meadowood 2,644 7.8 mi
Oak Hills 2,513 8.4 mi
Slippery Rock University 2,853 9.4 mi
Slippery Rock 3,495 10.1 mi
Zelienople 3,827 14.2 mi
Grove City 7,830 16.3 mi
Ellwood City 7,532 17.7 mi
Seven Fields 2,884 18.5 mi
Bakerstown 2,527 20.0 mi
New Castle 21,579 20.4 mi

More nearby: every ZIP code in Butler County · Pennsylvania ZIP codes

Cite this page

zipcodes.pro. “Unionville, PA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/pa/unionville-3

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