25 of Middletown’s places are on the National Register
More historic than 54% of U.S. towns · #19 of 37 in Delaware. What drives it
Most of Middletown was built recently: 3% of its homes predate 1940 and the median home dates from 2005. Below: 19 old photos and papers, maps from 1884 on, and the census since 1850.
On its age, its old homes and the National Register, Middletown is more historic than 54% of U.S. towns, #19 of 37 in Delaware. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
B−
HistoryA character grade: shown, never part of Middletown’s overall grade.
Delaware towns list more on the Register than most of the country (a typical Delaware town has 29.4 per 10,000 residents, the U.S. 2.4), so Middletown’s 112 sits above most of its state (68% of Delaware towns have fewer) while its 276 historic buildings outnumber those of 95% 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 (±1.7 points) is firm at this size.
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 Middletown’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.
Every edition of the U.S. Geological Survey’s map of Middletown. Tap a year, or press play to watch the town change.
1931Smyrna 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 Middletown.
Every building
Middletown, building by building, 1884–1922
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
Middletown’s post office has been open since 1793.
Gone or out of use
Noxontownlocale
2cemeteries and burying grounds inside Middletown
ForestOld Saint Anne's Church
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Middletown’s history
How does Middletown rank for history?
Middletown is more historic than 54% of U.S. towns, #19 of 37 in Delaware. 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 Middletown?
25 listings: 22 buildings, among them the Middletown Academy (listed 1972, the first), 3 historic districts, the Middletown Historic District, the Achmester and the Odessa Historic District, with 233 contributing buildings, and 1 site. 276 historic buildings in all.
How old are the homes in Middletown?
3% of Middletown’s homes were built before 1940 (Census estimate, ±1.7 points), against a typical 5.9% for a Delaware town; the median home was built in 2005.
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 the Library of Congress (19), Wikidata (1), the National Register of Historic Places (26), 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), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.