Most of Ehrenberg was built recently: 0.0% of its homes predate 1940 and the median home dates from 1987. Below: 4 old photos and papers, maps from 1951 on, and the census since 2000.
In 1863, German mining engineer Herman Ehrenberg was hired to survey a new townsite along the Colorado River, approximately 6 miles (10 km) from La Paz, Arizona. The town, named Mineral City, began to grow in 1866, after a new landing was established there, supported by the steamboat captains of the George A. Johnson Company. Mineral City attracted miners and many businessmen away from La Paz and by September 20, 1869, had grown large enough to win a post office. The same year it was renamed "Ehrenberg".
Over the next several years the town continued to grow, surpassing La Paz. By 1875 there were 500 residents. The population of La Paz dwindled, and many storekeepers relocated to Ehrenberg.
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). How TownRatings grades history →
From Wikimedia Commons (6), 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.