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C+History
History · Denmark

Denmark’s post office opened in 1857, and 20% of its homes were built before 1940

More historic than 40% of U.S. towns · #243 of 362 in Wisconsin. What drives it

Below: 6 old photos and papers, maps from 1954 on, and the census since 1920.

1857first post office
0on the National Register
20%homes built before 1940
6old photos & papers
1famous people
From Denmark’s archive · credits on each photo
Quick answers

How Denmark began

When was Denmark founded?

1857

The Denmark post office opened in 1857, the earliest record of the town by name. Wikidata gives 1915.

First census: 735 in 19202020 census: 2,408169 years

How historic is Denmark?

C+

More historic than 40% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Denmark post office (Blevins & Helbock, CC0). Wikidata: 1915.The full story ↓
History grade

What drives Denmark’s History grade

On its age, its old homes and the National Register, Denmark is more historic than 40% of U.S. towns, #243 of 362 in Wisconsin. 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 Denmark’s overall grade.
All U.S. towns we grade (21,289)Ahead of 40%
NewerOlder
Wisconsin towns of 2,500+ (362)Ahead of 33%

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 Denmark’s 0.0 sits below most of its state (28% of Wisconsin 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 (±7.5 points). The founding year is the first post office, not a stated founding date; Wikidata gives 1915.

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 →

The story

How Denmark came to be

From Wikipedia’s history of Denmark.

Read it all →

In 1846, a Prussian immigrant, John Herbes, purchased 40 acres of land in the area of what is now Denmark.

In 1848, the second settler, and the first Danish immigrant, a man named Niels Gotfredsen, bought 160 acres in the area. He and his wife were referred to as the 'King and Queen of Denmark', because they were the first Danish settlers of the town of Denmark.

In 1854, the residents of Brown County, Wisconsin voted on whether Green Bay or De Pere would be the county seat. This was also the year that the residents of Denmark wanted to build a church, but they did not have any money. A man from De Pere came to the town, and offered to pay two dollars for every vote the people of Denmark would cast in favor of De Pere.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Denmark in 1913

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

advantages along this line were limited, for he was obliged to walk two miles to the schoolhouse and he worked upon the farm when not engaged with his books. His childhood was spent amid scenes of pioneer settlement for his father came to New Denmark at a time when the district was but slightly dev…
History of Brown County, Wisconsin, past and present1913 · page 492Read the page →
Read the text

advantages along this line were limited, for he was obliged to walk two miles to the schoolhouse and he worked upon the farm when not engaged with his books. His childhood was spent amid scenes of pioneer settlement for his father came to New Denmark at a time when the district was but slightly developed and most of the land was covered with heavy timber in which a great deal of wild game could be found. When he grew older Peter Olsen went to Michigan, where he spent three years working in the mines, returning at the end of that time and settling upon his father's

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

Denmark, 1857 to 1954

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

  1. 19th century
  2. 1857Post officeThe Denmark post office opens
  3. 20th century
  4. 1917In the archiveIndustries of War - Canning - DENMARK CONDENSED MILK CO
  5. 1917Born hereJean Sutton is born here
  6. 1954On the mapFirst mapped by the U.S. Geological Survey
By decade

Denmark, decade by decade

One decade in the archive so far: the 1910s. Scroll each row; tap a photo for its story.

On the map

Denmark on the map, 1954 to 1978

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

Denmark on the 1954 USGS mapDenmark on the 1978 USGS map1954Denmark 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 Denmark.

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.

Industries of War - Canning - DENMARK CONDENSED MILK CO
Retake this viewIndustries of War - Canning - DENMARK CONDENSED MILK CO, 1917

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

Retake this view · +15
People over time

Denmark, census by census

05001,0001,5002,0002,5001920194019601980200020202,408

Grew from 735 people in 1920 to 2,408 in 2020, 3 times over.

11 censuses, 1920–2020.

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

Places that used to be

Old corners

Denmark’s post office has been open since 1857.

Hamlets and corners on the map
Olympic Village

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

Help out

Finish Denmark’s story

Most archives stop around 1920. The photos from after that are in family albums, not libraries.

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

Questions about Denmark’s history

What year was Denmark founded?

The Denmark post office opened in 1857, the earliest record of the town by name (U.S. post office records). Wikidata gives 1915.

How does Denmark rank for history?

Denmark is more historic than 40% of U.S. towns, #243 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.

How old are the homes in Denmark?

20% of Denmark’s homes were built before 1940 (Census estimate, ±7.5 points), against a typical 12% for a Wisconsin 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 (6), 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.