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History · Clarksville

Clarksville dates to 1769, and 62% of its homes were built before 1940

Below: maps from 1901 on and the census since 1880.

1769founded
0on the National Register
62%homes built before 1940
1famous people
Add an old photoShare a memory
Photo: Nyttend · Public domain
Quick answers

How Clarksville began

When was Clarksville founded?

1769

Clarksville dates its founding to 1769 (Wikidata). The census first counted it in 1880.

First census: 205 in 18802020 census: 203257 years
Founding year: Wikidata. First post office: 1815.

What stands out about Clarksville’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 Clarksville are in the public archives yet. The rest are in attics and albums.On the map since 19014 editions of the USGS map, 1901 to 1994. Watch Clarksville change.Old housesHalf of Clarksville’s homes were built before 1938.Boom and bustPeaked at 457 in 1930; 203 people lived here in 2020.
★ What stands out · Help out

Start Clarksville’s collection

The first neighbors to add old photos shape how Clarksville’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
On the map

Clarksville on the map, 1901 to 1994

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

Clarksville on the 1901 USGS mapClarksville on the 1961 USGS mapClarksville on the 1973 USGS mapClarksville on the 1994 USGS map1901Waynesburg 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 Clarksville.

The story so far

Clarksville, in brief

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

Clarksville is a borough in Greene County, Pennsylvania, United States. The population was 194 at the 2020 census.

Clarksville was established in 1769. Between the 2010 and 2020 censuses its population fell from 230 to 203 (-12%).

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

Timeline

Clarksville, 1769 to 1956

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 18th century
  2. 1769
    FoundingClarksville is established
  3. 19th century
  4. 1815Post officeThe Clarksville post office opens
  5. 20th century
  6. 1901On the mapFirst mapped by the U.S. Geological Survey
  7. 1930CensusPopulation peaks at 457
  8. 1956Born hereRon Nyswaner is born here
By decade

Clarksville, decade by decade

Today1 recent
Center near South in2015Center near South in
People over time

Clarksville, census by census

010020030040050018801900192019401960198020002020Peak: 457

Peaked at 457 in 1930; 203 people lived here in 2020.

13 censuses, 1880–2020.

U.S. Census Bureau decennial counts, from the census table on Clarksville’s Wikipedia page.

Stories next door

History across the town line

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

East Bethlehem Township1 historic placeAJefferson Township3 historic placesAMorgan Township2 historic placesA

Questions about Clarksville’s history

What year was Clarksville founded?

In 1769, according to Wikidata. Clarksville’s post office opened in 1815, and the census of 1880 counted 205 people here.

Memory lane

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

Town Square →
Start a conversation
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 (1), Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.