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C−History
History · Washington Park

Washington Park’s post office opened in 1912, and 14% of its homes were built before 1940

More historic than 22% of U.S. towns. What drives it

Below: 1 old photo or paper, maps from 1935 on, and the census since 1920.

1912first post office
0on the National Register
14%homes built before 1940
1old photo or paper
Quick answers

How Washington Park began

When was Washington Park founded?

1912

The Washington Park post office opened in 1912, the earliest record of the town by name. Wikidata gives 1923.

First census: 1,516 in 19202020 census: 2,592114 years

How historic is Washington Park?

C−

More historic than 22% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Washington Park post office (Blevins & Helbock, CC0). Wikidata: 1923.The full story ↓
History grade

What drives Washington Park’s History grade

On its age, its old homes and the National Register, Washington Park is more historic than 22% of U.S. towns. Its share of homes from before 1940 holds the grade up; its age pulls it down.

C−
HistoryA character grade: shown, never part of Washington Park’s overall grade.
All U.S. towns we grade (21,289)Ahead of 22%
NewerOlder

Few Illinois towns list much on the Register (a typical Illinois town has 0.5 per 10,000 residents, the U.S. 2.4), so Washington Park’s 0.0 sits below most of its state (28% of Illinois 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 C+. The pre-1940 share is a Census survey estimate (±6.2 points). The founding year is the first post office, not a stated founding date; Wikidata’s 1923 falls in the same era, so the grade doesn’t depend on which one is used.

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 Washington Park’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 Washington Park’s collection

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

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

Washington Park, census by census

02,0004,0006,0008,00010,000192019401960198020002020Peak: 9,524

Peaked at 9,524 in 1970; 2,592 people lived here in 2020.

11 censuses, 1920–2020.

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

The story

How Washington Park came to be

From Wikipedia’s history of Washington Park.

Read it all →

Washington Park filed for Chapter 9 bankruptcy protection in July 2009, citing assets of less than $50,000 and debt of more than $1 million. U.S. Bankruptcy Judge Pamela Pepper threw out the filing in December 2010 after finding there was no state law enabling a municipality to declare bankruptcy. Washington Park filed for bankruptcy in 2004 as well, claiming a $1.6 million debt, but that filing was dismissed when the village briefly emerged from insolvency.

In 2010, the mayor of Washington Park, John Thornton, was found to have been fatally shot; he was discovered in his car injured on the morning of April 1, and died at a hospital at 6 AM.

On July 25, 2012, the chief of police called for the disbanding of the police force.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Washington Park, 1880 to 1970

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

  1. 19th century
  2. 1880In the archive1950 Census Enumeration District Maps - Illinois (IL) - St. Clair County - Washington Par…
  3. 20th century
  4. 1912Post officeThe Washington Park post office opens
  5. 1918Post officeThe Washington Park post office closes
  6. 1935On the mapFirst mapped by the U.S. Geological Survey
  7. 1970CensusPopulation peaks at 9,524
By decade

Washington Park, decade by decade

One decade in the archive so far: the 1880s. Scroll each row; tap a photo for its story.

1890s–1990snothing yet
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.
Add from your album
On the map

Washington Park on the map, 1935 to 1993

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

Washington Park on the 1935 USGS mapWashington Park on the 1954 USGS mapWashington Park on the 1968 USGS mapWashington Park on the 1974 USGS mapWashington Park on the 1993 USGS map1935Monks Mound sheet · 1:24,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Washington Park.

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.

1950 Census Enumeration District Maps - Illinois (IL) - St. Clair County - Washington Park - ED 82-52 to 57
Retake this view1950 Census Enumeration District Maps - Illinois (IL) - St. Clair County - Washington Park - ED 82-52 to 57, 1880

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

Retake this view · +15
Famous people

Famous people close to Washington Park

Nobody well known was born in Washington Park itself, so here are the best known from just nearby.

See all →
Places that used to be

Lost post offices and old corners

Washington Park had its own post office from 1912 to 1918.

Washington Park
1912–1918
19101970today
Hamlets and corners on the map
Rosemont

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Washington Park’s history

What year was Washington Park founded?

The Washington Park post office opened in 1912, the earliest record of the town by name (U.S. post office records). Wikidata gives 1923.

How does Washington Park rank for history?

Washington Park is more historic than 22% of U.S. towns. 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 Washington Park?

14% of Washington Park’s homes were built before 1940 (Census estimate, ±6.2 points), against a typical 11% for an Illinois town; the median home was built in 1953.

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 (2), Wikipedia, 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.