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CHistory
History · Baldwin

Half of Baldwin’s homes were built after 1959

More historic than 27% of U.S. towns · #962 of 1,035 in Pennsylvania. What drives it

Most of Baldwin was built recently: 10% of its homes predate 1940 and the median home dates from 1959. Below: maps from 1904 on and the census since 1960.

0on the National Register
10%homes built before 1940
1famous people
Quick answers

About Baldwin’s history

How historic is Baldwin?

C

More historic than 27% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
History grade

What drives Baldwin’s History grade

On its age, its old homes and the National Register, Baldwin is more historic than 27% of U.S. towns, #962 of 1,035 in Pennsylvania. 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 Baldwin’s overall grade.
All U.S. towns we grade (21,289)Ahead of 27%
NewerOlder
Pennsylvania towns of 2,500+ (1,035)Ahead of 7%

Pennsylvania towns list about as much on the Register as the country (a typical Pennsylvania town has 2.1 per 10,000 residents, the U.S. 2.4), so Baldwin’s 0.0 sits below most of its state (25% of Pennsylvania towns have fewer) while its 0 listings outnumber those of 23% 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 (±2.8 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 Baldwin’s past

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

★ What stands out · Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Four other post offices opened and closed inside today’s town.

Surgeon's Hall
1830–1907
Option
1884–1920
Willock
1891–1953
Horning
1905–1941
18301930today
Hamlets and corners on the map
CurryHorningOptionSurgeon HallWillock
Gone or out of use
Option Post Officepost office
3cemeteries and burying grounds inside Baldwin
North Zion Lutheran ChurchSaint John The BaptistSaint Paul Lutheran

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

Help out

Start Baldwin’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
On the map

Baldwin on the map, 1904 to 1988

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

Baldwin on the 1904 USGS mapBaldwin on the 1953 USGS mapBaldwin on the 1960 USGS mapBaldwin on the 1979 USGS mapBaldwin on the 1988 USGS map1904Pittsburgh 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 Baldwin.

The story

How Baldwin came to be

From Wikipedia’s history of Baldwin.

Read it all →

The borough was named for Henry Baldwin (1780–1844), a U.S. Congressman from Pennsylvania and Associate Justice of the Supreme Court. Baldwin Borough was incorporated on October 27, 1950, from Baldwin Township.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Baldwin, 1879–1889

Passages that mention Baldwin, cut from the printed page as they were published.

Baldwin has five churches. The Meth¬ odist Episcopal Church was organized about 1868. The first building was erected on the grounds of the Steel Company, oppo¬ site the blast furnace, on the road leading from Baldwin to the depot. While the building was in course of construction, there was preachin…
A history of the Pennsylvania steel works located at Baldwin Penna. R.R. Station, Dauphin Co., Pa., from their origin to the present time / by J.H. Wood1879 · page 29Read the page →
Read the text

Baldwin has five churches. The Meth¬ odist Episcopal Church was organized about 1868. The first building was erected on the grounds of the Steel Company, oppo¬ site the blast furnace, on the road leading from Baldwin to the depot. While the building was in course of construction, there was preaching in the dining room of

Text read by machine from the scan; it may contain errors.
The territory now occupied by the town of Baldwin was once the site of an Indian encampment. In making excavations for the railroad switches, Indian skeletons have been exhumed. Indian arrow-heads and darts of flint stone are frequently turned up by the ruthless ploughshare and are quickly gathered…
A history of the Pennsylvania steel works located at Baldwin Penna. R.R. Station, Dauphin Co., Pa., from their origin to the present time / by J.H. Wood1879 · page 23Read the page →
Read the text

The territory now occupied by the town of Baldwin was once the site of an Indian encampment. In making excavations for the railroad switches, Indian skeletons have been exhumed. Indian arrow-heads and darts of flint stone are frequently turned up by the ruthless ploughshare and are quickly gathered and securely pre¬

Text read by machine from the scan; it may contain errors.
reduced to 17,750 acres. In 1832 the boundary line between the two was so changed as to take from Jefferson 202 acres in favor of Mifflin. In 1844 a small portion of Jefferson was united with contiguous portions of the adjoining township to form the new township of Baldwin, and in the following yea…
History of Allegheny county, Pennsylvania1889 · page 78Read the page →
Read the text

reduced to 17,750 acres. In 1832 the boundary line between the two was so changed as to take from Jefferson 202 acres in favor of Mifflin. In 1844 a small portion of Jefferson was united with contiguous portions of the adjoining township to form the new township of Baldwin, and in the following year about one-third of its territory became part of Snowden. The present area is about twelve thousand acres. The names are remembered of the following residents prior to 1830: James and Jesse Lobb, John McNutt, James Greer, Washington Robinson, Thomas

Text read by machine from the scan; it may contain errors.
reduced to 17,750 acres. In 1832 the boundary line between the two was so changed as to take from Jefferson 202 acres in favor of Mifflin. In 1844 a small portion of Jefferson was united with contiguous portions of the adjoining township to form the new township of Baldwin, and in the following yea…
History of Allegheny county, Pennsylvania1889 · page 78Read the page →
Read the text

reduced to 17,750 acres. In 1832 the boundary line between the two was so changed as to take from Jefferson 202 acres in favor of Mifflin. In 1844 a small portion of Jefferson was united with contiguous portions of the adjoining township to form the new township of Baldwin, and in the following year about one-third of its territory became part of Snowden. The present area is about twelve thousand acres. The names are remembered of the following residents prior to 1830: James and Jesse Lobb, John McNutt, James Greer, Washington Robinson, Thomas

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

Timeline

Baldwin, 1830 to 1953

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

  1. 19th century
  2. 1830Post officeThe Surgeon's Hall post office opens
  3. 1884Post officeThe Option post office opens
  4. 1891Post officeThe Willock post office opens
  5. 20th century
  6. 1904On the mapFirst mapped by the U.S. Geological Survey
  7. 1907Post officeThe Surgeon's Hall post office closes
  8. 1920Post officeThe Option post office closes
  9. 1952Born hereDave Wannstedt is born here
  10. 1953Post officeThe Willock post office closes
By decade

Baldwin, decade by decade

People over time

Baldwin, census by census

05,00010,00015,00020,00025,0001960198020002020Peak: 26,729

Between 19,767 and 26,729 people in every census since 1960.

7 censuses, 1960–2020.

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

Stories next door

History across the town line

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

Questions about Baldwin’s history

How does Baldwin rank for history?

Baldwin is more historic than 27% of U.S. towns, #962 of 1,035 in Pennsylvania. 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 Baldwin?

10% of Baldwin’s homes were built before 1940 (Census estimate, ±2.8 points), against a typical 18% for a Pennsylvania town; the median home was built in 1959.

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 (4), 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 old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.