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BHistory
History · New Berlin

New Berlin’s post office opened in 1837, and 4 of its places are on the National Register

More historic than 60% of U.S. towns · #158 of 362 in Wisconsin. What drives it

Most of New Berlin was built recently: 4% of its homes predate 1940 and the median home dates from 1978. Below: maps from 1891 on and the census since 1960.

1837first post office
4on the National Register
4%homes built before 1940
3famous people
Quick answers

How New Berlin began

When was New Berlin founded?

1837

The New Berlin post office opened in 1837, the earliest record of the town by name. Wikidata gives 1840. Three smaller post offices, Prospect Hill (1851), Calhoun (1882) and Prospect (1883), opened inside today’s city and later closed.

First census: 15,788 in 19602020 census: 40,451189 years

How historic is New Berlin?

B

More historic than 60% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first New Berlin post office (Blevins & Helbock, CC0). Wikidata: 1840.The full story ↓
History grade

What drives New Berlin’s History grade

On its age, its old homes and the National Register, New Berlin is more historic than 60% of U.S. towns, #158 of 362 in Wisconsin. Its age holds the grade up; its share of homes from before 1940 pulls it down.

B
HistoryA character grade: shown, never part of New Berlin’s overall grade.
All U.S. towns we grade (21,289)Ahead of 60%
NewerOlder
Wisconsin towns of 2,500+ (362)Ahead of 57%

Wisconsin towns list more on the Register than most of the country (a typical Wisconsin town has 3.0 per 10,000 residents, the U.S. 2.4), so New Berlin’s 1.5 sits near the middle of its state (59% of Wisconsin towns have fewer) while its 6 historic buildings outnumber those of 72% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from C+ to A−. The pre-1940 share (±1.2 points) is firm at this size. The founding year is the first post office, not a stated founding date; Wikidata’s 1840 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 New Berlin’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 New Berlin’s collection

The first neighbors to add old photos shape how New Berlin’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

New Berlin on the map, 1891 to 1994

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

New Berlin on the 1891 USGS mapNew Berlin on the 1901 USGS mapNew Berlin on the 1959 USGS mapNew Berlin on the 1971 USGS mapNew Berlin on the 1994 USGS map1891Muskego 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 New Berlin.

Places that used to be

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

New Berlin had its own post office from 1837 to 1971. Three other post offices opened and closed inside today’s town.

New Berlin
1837–1971
Prospect Hill
1851–1883
Calhoun
1882–1918
Prospect
1883–1903
18301930today
Hamlets and corners on the map
CalhounProspect
Gone or out of use
New Berlin Memorial Hospitalhospital
5cemeteries and burying grounds inside New Berlin
Highland Memorial ParkHoly ApostlesNew BerlinSaint Pauls LutheranSunnyside

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

The story

How New Berlin came to be

From Wikipedia’s history of New Berlin.

Read it all →

The first settlers, Sidney Evans and P.G. Harrington, arrived in the northeastern part of what is now New Berlin in 1836. The area first came under local government in 1838 as part of the Town of Muskego, which at the time was composed of New Berlin and Muskego. The area that is now New Berlin was separated from Muskego in 1839 and named the Town of Mentor.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

New Berlin, 1837 to 1992

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

  1. 19th century
  2. 1837Post officeThe New Berlin post office opens
  3. 1842Born hereWilliam Henry Seaman is born here
  4. 1851Post officeThe Prospect Hill post office opens
  5. 1858BuiltFreewill Baptist Church is built
  6. 1868BuiltEnoch Gardner and Mary Caroline Koch Needham House is built
  7. 1882Post officeThe Calhoun post office opens
  8. 1883Post officeThe Prospect Hill post office closes
  9. 1891On the mapFirst mapped by the U.S. Geological Survey
  10. 20th century
  11. 1918Post officeThe Calhoun post office closes
  12. 1971Post officeThe New Berlin post office closes
  13. 1984Born hereMeghan Coffey is born here
  14. 1992Born hereT. J. Bray is born here
By decade

New Berlin, decade by decade

On the National Register

4 historic places in New Berlin

The country’s official list of buildings and places worth saving.

places listed
4
National Historic Landmarks
0
none yet
historic buildings protected
6
each building in a district counts
first listed
1980
Gredler-Gramins House
All 4 listings

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

People over time

New Berlin, census by census

05,00010,00015,00020,00025,00030,00035,00040,00045,000196019802000202040,451

Grew from 15,788 people in 1960 to 40,451 in 2020.

7 censuses, 1960–2020.

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

Famous people

3 famous people were born in New Berlin

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
Stories next door

History across the town line

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

Questions about New Berlin’s history

What year was New Berlin founded?

The New Berlin post office opened in 1837, the earliest record of the town by name (U.S. post office records). Wikidata gives 1840.

How does New Berlin rank for history?

New Berlin is more historic than 60% of U.S. towns, #158 of 362 in Wisconsin. 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 New Berlin?

4 listings: 3 buildings, among them the Gredler-Gramins House (listed 1980, the first), and 1 site. 6 historic buildings in all.

How old are the homes in New Berlin?

4% of New Berlin’s homes were built before 1940 (Census estimate, ±1.2 points), against a typical 12% for a Wisconsin town; the median home was built in 1978.

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 (10), Wikidata (2), the National Register of Historic Places (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) 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.