22% of Washington Township’s homes were built before 1940
More historic than 89% of U.S. towns · #189 of 1,035 in Pennsylvania. What drives it
Its Register listings are the Pettit's Ford, the Bridge in Washington Township and the Henry and Elizabeth Berkheimer Farm. Below: 18 old photos and papers, maps from 1906 on, and the census since 1810.
On its age, its old homes and the National Register, Washington Township is more historic than 89% of U.S. towns, #189 of 1,035 in Pennsylvania. All 2 inputs are above most U.S. towns; its National Register listings ranks highest and its share of homes from before 1940 lowest.
A
HistoryA character grade: shown, never part of Washington Township’s overall grade.
Pennsylvania towns list about as much on the Register as the country (a typical Pennsylvania town has 2.1 per 10,000 residents, the U.S. 2.4), so Washington Township’s 42.3 sits above most of its state (85% of Pennsylvania towns have fewer) while its 11 historic buildings outnumber those of 76% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±6.8 points).
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Washington Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Peaked at 26,280 in 1950; 13,176 people lived here in 2020.
22 censuses, 1810–2020.
U.S. Census Bureau decennial counts, from the census table on Washington Township’s Wikipedia page.
On the map
Washington Township on the map, 1906 to 1999
Every edition of the U.S. Geological Survey’s map of Washington Township. Tap a year, or press play to watch the town change.
1906New Cumberland 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 Washington Township.
The French labeled the area "Wissameking", meaning "catfish place", as early as 1757.
The area of Washington was settled by many immigrants from Scotland and the north of Ireland along with settlers from eastern and central parts of the Colony of Virginia, first settled around 1768.
The Pennsylvania General Assembly passed an act on March 28, 1781, establishing the County of Washington and naming "Catfish Camp" as the place for holding the first election.
Passages that mention Washington Township, cut from the printed page as they were published.
History of York County Pennsylvania From the Earliest Time to the Present1886 · page 672Read the page →
Read the text
east of the Bermudian was settled by the Quakers, and the portion southeast of the same stream by the German Baptists as early as 1735. Washington Township has a variety of soil. A vein of black dolerite crosses it, and also a small vein of copper ore. Iron ore has been taken out at two or three places in large quantities: Most of the land is now
Text read by machine from the scan; it may contain errors.
History of York County, Pennsylvania1886 · page 672Read the page →
Read the text
east of the Bermudian was settled by the Quakers, and the portion southeast of the same stream by the German Baptists as early as 1735. Washington Township has a variety of soil. A vein of black dolerite crosses it, and also a small vein of copper ore. Iron ore has been taken out at two or three places in large quantities. Most of the land is now
Text read by machine from the scan; it may contain errors.
History of York County Pennsylvania From the Earliest Time to the Present1886 · page 107Read the page →
Read the text
1881, took charge of the business himself, at which he has since been very prosperous. In the spring of 1884 he and J. S. Bentz, of Carroll Township, went into business in Washington Township, thus making him one of the four leading business men of this section of the county. In 1880 he was licensed enumerator of Franklin and Washington Townships, and in 1863 was appointed mercantile appraiser of York
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.
Timeline
Washington Township, 1865 to 1950
Woven from the archive, old maps, post office records, the National Register and the people born here.
Washington Township is more historic than 89% of U.S. towns, #189 of 1,035 in Pennsylvania. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Washington Township?
Three places: the Pettit's Ford (listed 1983), the Bridge in Washington Township (1988) and the Henry and Elizabeth Berkheimer Farm (2000).
How old are the homes in Washington Township?
22% of Washington Township’s homes were built before 1940 (Census estimate, ±6.8 points), against a typical 18% for a Pennsylvania town; the median home was built in 1978.
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).
From Wikimedia Commons (18), the National Register of Historic Places (3), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System 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.