Each edition grades its towns against each other only.
Below: 1 old photo or paper, maps from 1946 on, and the census since 2000.
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Duncan Township’s history is told.
Two other post offices opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Wikipedia doesn’t have a history of Duncan Township yet. The photos, dates and memories neighbors add here are how it gets written.
Duncan Township is a township in Tioga County, Pennsylvania, United States. The population was 188 at the 2020 census.
Between the 2010 and 2020 censuses its population fell from 208 to 189 (-9%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Woven from the archive, old maps, post office records, the National Register and the people born here.
In the archive1940 Census Enumeration District Maps - Pennsylvania - Tioga County - Duncan - ED 59-12
On the mapFirst mapped by the U.S. Geological SurveyOne decade in the archive so far: the 1880s. Scroll each row; tap a photo for its story.
Every edition of the U.S. Geological Survey’s map of Duncan Township. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Duncan Township.
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Duncan Township’s page.
Retake this view · +15Between 188 and 213 people in every census since 2000.
3 censuses, 2000–2020.
U.S. Census Bureau decennial counts, from the census table on Duncan Township’s Wikipedia page.
Nobody well known was born in Duncan Township itself, so here are the best known from just nearby.
Each neighbor’s History grade, on the same three inputs.
What the archives can’t tell you, neighbors can.
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 (2), 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.
2012