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History · Union Deposit

Union Deposit’s post office opened in 1855

Most of Union Deposit was built recently: 5% of its homes predate 1940 and the median home dates from 1994. Below: maps from 1892 on.

1855first post office
0on the National Register
5%homes built before 1940
1famous people
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Quick answers

How Union Deposit began

When was Union Deposit founded?

1855

The Union Deposit post office opened in 1855, the earliest record of the town by name.

2020 census: 418171 years
Founding year: the first Union Deposit post office (Blevins & Helbock, CC0).

What stands out about Union Deposit’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

A history waiting to be writtenNo old photos of Union Deposit are in the public archives yet. The rest are in attics and albums.On the map since 18926 editions of the USGS map, 1892 to 1990. Watch Union Deposit change.
★ What stands out · Help out

Start Union Deposit’s collection

The first neighbors to add old photos shape how Union Deposit’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
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On the map

Union Deposit on the map, 1892 to 1990

Every edition of the U.S. Geological Survey’s map of Union Deposit. Tap a year, or press play to watch the town change.

Union Deposit on the 1892 USGS mapUnion Deposit on the 1947 USGS mapUnion Deposit on the 1956 USGS mapUnion Deposit on the 1969 USGS mapUnion Deposit on the 1974 USGS mapUnion Deposit on the 1990 USGS map1892Hummelstown sheet · 1:62,500

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Union Deposit.

The story so far

Union Deposit, in brief

Wikipedia doesn’t have a history of Union Deposit yet. The photos, dates and memories neighbors add here are how it gets written.

Union Deposit is an unincorporated community and census-designated place in South Hanover Township, Pennsylvania, United States. It is part of the Harrisburg–Carlisle Metropolitan Statistical Area. As of the 2010 census the population of Union Deposit was 407 residents. Union Deposit (formerly called Unionville and Uniontown) was laid out in 1833 by Isaac Hershey (west end) and Philip Wolfersberger (east end). The village's original growth and namesake comes from construction of the Union Canal, which deposited goods in the area, upon where the village boomed from various commercial enterprises.

Its first post office opened in 1855. Between the 2010 and 2020 censuses its population grew from 407 to 418 (+3%).

Intro from Wikipedia. Population: U.S. Census Bureau.

By decade

Union Deposit, decade by decade

Today6 recent
Union Deposit UMC, Union Deposit, PA, July 20252025Union Deposit UMC, Union Deposit, PA, July 2025Union Deposit Cemetery, Union Deposit, PA, July 20252025Union Deposit Cemetery, Union Deposit, PA, July 2025Travelers Post Guest House, Union Deposit, PA, July 20252025Travelers Post Guest House, Union Deposit, PA, July 2…Main Street wb, Union Deposit, PA, July 20252025Main Street wb, Union Deposit, PA, July 2025Main Street eb, Union Deposit, PA, July 20252025Main Street eb, Union Deposit, PA, July 2025Citizens Band building, Union Deposit, PA, July 20252025Citizens Band building, Union Deposit, PA, July 2025
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

South Hanover TownshipIts storyC−Derry Township4 historic placesA−

Questions about Union Deposit’s history

What year was Union Deposit founded?

The Union Deposit post office opened in 1855, the earliest record of the town by name (U.S. post office records).

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
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Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →

From Wikimedia Commons (6), Wikidata and Wikipedia for famous people and U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.