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CHistory
History · Unadilla

Unadilla’s post office opened in 1890, and 17% of its homes were built before 1940

More historic than 35% of U.S. towns · #156 of 263 in Georgia. What drives it

Below: 1 old photo or paper, maps from 1915 on, and the census since 1900.

1890first post office
0on the National Register
17%homes built before 1940
1old photo or paper
1famous people
Photo: Michael Rivera · CC BY-SA 4.0
Quick answers

How Unadilla began

When was Unadilla founded?

1890

The Unadilla post office opened in 1890, the earliest record of the town by name.

First census: 524 in 19002020 census: 3,118136 years

How historic is Unadilla?

C

More historic than 35% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Unadilla post office (Blevins & Helbock, CC0).The full story ↓
History grade

What drives Unadilla’s History grade

On its age, its old homes and the National Register, Unadilla is more historic than 35% of U.S. towns, #156 of 263 in Georgia. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.

C
HistoryA character grade: shown, never part of Unadilla’s overall grade.
All U.S. towns we grade (21,289)Ahead of 35%
NewerOlder
Georgia towns of 2,500+ (263)Ahead of 41%

Georgia towns list more on the Register than most of the country (a typical Georgia town has 10.0 per 10,000 residents, the U.S. 2.4), so Unadilla’s 0.0 sits below most of its state (16% of Georgia towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from D to B−. The pre-1940 share is a Census survey estimate (±11.7 points). The founding year is the first post office, not a stated founding date.

Founding year: the first post office (other dates in Quick answers). 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 Unadilla’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Unadilla’s collection

The first neighbors to add old photos shape how Unadilla’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
1 of 10 decades. The empty ones are waiting for someone’s album.
People over time

Unadilla, census by census

05001,0001,5002,0002,5003,0003,5004,00019001920194019601980200020202,019 in 1920Low: 1,098

Lost half of its people between 1920 and 1950, then more than doubled.

13 censuses, 1900–2020.

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

The story

How Unadilla came to be

From Wikipedia’s history of Unadilla.

Read it all →

Unadilla is a name derived from the Iroquois language meaning "council place". The Georgia General Assembly incorporated Unadilla as a town in 1891. On December 31, 2006, an F2 tornado hit the outskirts of the city. Due to the implementation of the Enhanced Fujita Scale the next day this was the last tornado to be rated using the Fujita scale in the United States.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Unadilla, 1890 to 2010

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

  1. 19th century
  2. 1890Post officeThe Unadilla post office opens
  3. 20th century
  4. 1940In the archiveFlorida [Sarasota County (part) - Washington County] -- Georgia [Appling County - Effingh…
  5. 1956On the mapFirst mapped by the U.S. Geological Survey
  6. 1985Born hereDavid Ragan is born here
  7. 21st century
  8. 2010CensusPopulation peaks at 3,796
By decade

Unadilla, decade by decade

One decade in the archive so far: the 1940s. Scroll each row; tap a photo for its story.

On the map

Unadilla on the map, 1956 to 1973

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

Unadilla on the 1956 USGS mapUnadilla on the 1973 USGS map1956Perry 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 Unadilla.

Every building

Unadilla, building by building, 1915

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 sheet.

Unadilla fire insurance map, 1915, sheet 11915Sheet 1 of 5

Sanborn Map Company, via the Library of Congress. Editions published in 1930 or earlier, which are in the public domain.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Florida [Sarasota County (part) - Washington County] -- Georgia [Appling County - Effingham County (part)]
Retake this viewFlorida [Sarasota County (part) - Washington County] -- Georgia [Appling County - Effingham County (part)], 1940

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Unadilla’s page.

Retake this view · +15

Questions about Unadilla’s history

What year was Unadilla founded?

The Unadilla post office opened in 1890, the earliest record of the town by name (U.S. post office records).

How does Unadilla rank for history?

Unadilla is more historic than 35% of U.S. towns, #156 of 263 in Georgia. 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.

How old are the homes in Unadilla?

17% of Unadilla’s homes were built before 1940 (Census estimate, ±11.7 points), against a typical 3.8% for a Georgia town; the median home was built in 1981.

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).

From Wikimedia Commons (12), Wikipedia, 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.