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History · State Line

State Line’s post office opened in 1830

Most of State Line was built recently: 7% of its homes predate 1940 and the median home dates from 1988. Below: old-book passages.

1830first post office
0on the National Register
7%homes built before 1940
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Photo: Doug Kerr from Albany, NY, United States · CC BY-SA 2.0
Quick answers

How State Line began

When was State Line founded?

1830

The State Line post office opened in 1830, the earliest record of the town by name.

2020 census: 2,804196 years
Founding year: the first State Line post office (Blevins & Helbock, CC0).

What stands out about State Line’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 State Line are in the public archives yet. The rest are in attics and albums.Deep rootsA post office since 1830: 196 years of State Line.
★ What stands out · Help out

Start State Line’s collection

The first neighbors to add old photos shape how State Line’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Share a family photoSign in to add one+10
The story so far

State Line, in brief

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

State Line is an unincorporated community and census-designated place (CDP) in Antrim Township, Pennsylvania, United States. It is next to the Maryland state line along Interstate 81 and U.S. Route 11 between Hagerstown, Maryland, and Greencastle. As of the 2020 census the population was 2,804. State Line was originally called Middleburg, and under the latter name laid out in 1812, and named for its location between Greencastle and Hagerstown, Maryland. The present name comes from the fact that the community is located on the Maryland-Pennsylvania state line. A post office called State Line was established in 1830.

Its first post office opened in 1830. Between the 2010 and 2020 censuses its population grew from 2,709 to 2,804 (+4%).

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

From the old history books

What they wrote about State Line in 1887

Passages that mention State Line, cut from the printed page as they were published.

Franklin County, Penn. , and took charge of its active management. He improved and enlarged the works, increasing their output over fourfold, and still continues at their head. In 1872 he built the Mont Alto Railroad. In 1877 he added to his labors, by taking charge of the Rochester & State Line Ra…
History of Franklin county, Pennsylvania1887 · page 896Read the page →
Read the text

Franklin County, Penn. , and took charge of its active management. He improved and enlarged the works, increasing their output over fourfold, and still continues at their head. In 1872 he built the Mont Alto Railroad. In 1877 he added to his labors, by taking charge of the Rochester & State Line Railroad in New York. In 1879 he extended the Mont Alto Railroad to Waynesboro, and is still its engineer and superintendent. He originated the idea of having a large park at Mont Alto, and was the prime mover and main spirit in laying out the grounds of Mont Alto Park in 1875. He was the first president

Text read by machine from the scan; it may contain errors.
Franklin County, Penn., and took charge of its active management. He improved and enlarged the works, increasing their output over fourfold, and still continues at their head. In 1872 he built the Mont Alto Railroad. In 1877 he added to his labors, by taking charge of the Rochester & State Line Rai…
History of Franklin County, Pennsylvania1887 · page 896Read the page →
Read the text

Franklin County, Penn., and took charge of its active management. He improved and enlarged the works, increasing their output over fourfold, and still continues at their head. In 1872 he built the Mont Alto Railroad. In 1877 he added to his labors, by taking charge of the Rochester & State Line Railroad in New York. In 1879 he extended the Mont Alto Railroad to Waynesboro, and is still its engineer and superintendent. He originated the idea of having a large park at Mont Alto, and was ‘the prime mover and main spirit in laying out the grounds of Mont Alto Park in 1875. He was the first president

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

By decade

State Line, decade by decade

Today6 recent
PA 163 eb approaching US 11, July 20252025PA 163 eb approaching US 11, July 2025Cemetery, State Line, PA, July 20252025Cemetery, State Line, PA, July 20252016-07-29 15 07 00 View north along U.S. Route 11 (Pennsylvania Avenue-Molly Pitcher Highway) as it enters Antrim Town…20162016-07-29 15 07 00 View north along U.S. Route 11 (P…State Line, PA Keystone Marker 32009State Line, PA Keystone Marker 3State Line, PA Keystone Marker 22009State Line, PA Keystone Marker 2State Line, PA Keystone Marker 12009State Line, PA Keystone Marker 1
Famous people

Famous people close to State Line

Nobody well known was born in State Line itself, so here are the best known from just nearby.

See all →
LA KnightAmerican professional wrestler · b. 1982
Dennis ScottAmerican basketball player · b. 1968
Aaron BrooksAmerican wrestler · b. 2000
Robert McClellandAmerican governor of Michigan · b. 1807
Louis E. McComasAmerican politician · b. 1846
E
Euge GrooveAmerican musical artist · b. 1962
Stories next door

History across the town line

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

Antrim Township4 historic placesB+

Questions about State Line’s history

What year was State Line founded?

The State Line post office opened in 1830, 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) and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.