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B−History
History · Philo

Philo’s post office opened in 1860, and 28% of its homes were built before 1940

More historic than 47% of U.S. towns. What drives it

Below: maps from 1957 on and the census since 1870.

1860first post office
0on the National Register
28%homes built before 1940
Quick answers

How Philo began

When was Philo founded?

1860

The Philo post office opened in 1860, the earliest record of the town by name.

First census: 291 in 18702020 census: 1,392166 years

How historic is Philo?

B−

More historic than 47% of U.S. towns, on its age, its old homes and the National Register.

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

What drives Philo’s History grade

On its age, its old homes and the National Register, Philo is more historic than 47% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.

B−
HistoryA character grade: shown, never part of Philo’s overall grade.
All U.S. towns we grade (21,289)Ahead of 47%
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 Philo’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 C− to B. The pre-1940 share is a Census survey estimate (±9.4 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 Philo’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 Philo’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The story so far

Philo, in brief

Wikipedia doesn’t have a history of Philo yet. The photos, dates and memories neighbors add here are how it gets written.

Philo is a village in Champaign County, Illinois, United States. The population was 1,392 at the 2020 census.

Its first post office opened in 1860. Between the 2010 and 2020 censuses its population fell from 1,466 to 1,392 (-5%).

Intro from Wikipedia. Population: U.S. Census Bureau.

By decade

Philo, decade by decade

On the map

Philo on the map, 1957 to 1970

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

Philo on the 1957 USGS mapPhilo on the 1970 USGS map1957Urbana 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 Philo.

People over time

Philo, census by census

02004006008001,0001,2001,4001,60018801900192019401960198020002020Peak: 1,466

Between 291 and 1,466 people in every census since 1870.

16 censuses, 1870–2020.

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

Famous people

Famous people close to Philo

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

See all →

Questions about Philo’s history

What year was Philo founded?

The Philo post office opened in 1860, the earliest record of the town by name (U.S. post office records).

How does Philo rank for history?

Philo is more historic than 47% 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 Philo?

28% of Philo’s homes were built before 1940 (Census estimate, ±9.4 points), against a typical 11% for an Illinois town; the median home was built in 1968.

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 (6), 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.