The story so far
from Wikipedia & the U.S. CensusDennis is an unincorporated community and census-designated place (CDP) in Delaware County, Oklahoma, near Grand Lake. As of the 2020 census, Dennis had a population of 221. The Dennis Post Office existed from March 25, 1914, until January 31, 1956. It is said to be named for a local resident, Peter Dennis.
Between the 2010 and 2020 censuses its population grew from 195 to 221 (+13%). Half of its homes were built before 1987.
Wikipedia doesn’t have a history of Dennis yet — the old photos, dates and memories neighbors add here are how it gets written.
Intro from Wikipedia, licensed CC BY-SA 4.0. Population and housing: U.S. Census Bureau.
Start Dennis’s collection
The first neighbors to add old photos shape how Dennis’s history is told.
0 of 10 decades since 1900 have photos 📦Share a family photoSign in to add one+10Dennis, decade by decade
2000
Nothing in Dennis is on the National Register yet
That’s true of most small towns. It doesn’t mean Dennis has no history, only that no one has written up a nomination. The closest listed place is Delaware School, District No. 64 in White Water, 6.1 miles away.
Dennis and the nearest listed places
How a place gets listed
Then & now
When neighbors add old photos, retakes from the same spot appear here side by side.