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History · San Miguel

San Miguel’s post office opened in 1917

Most of San Miguel was built recently: 0.0% of its homes predate 1940 and the median home dates from 1987. Below: maps from 1941 on.

1917first post office
0on the National Register
0.0%homes built before 1940
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Quick answers

How San Miguel began

When was San Miguel founded?

1917

The San Miguel post office opened in 1917, the earliest record of the town by name.

2020 census: 205109 years
Founding year: the first San Miguel post office (Blevins & Helbock, CC0).

What stands out about San Miguel’s past

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

A history waiting to be writtenNo old photos of San Miguel are in the public archives yet. The rest are in attics and albums.
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Start San Miguel’s collection

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

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

San Miguel, in brief

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

San Miguel is a census-designated place in Pima County, in the U.S. state of Arizona. The population was 207 as of the 2020 census. San Miguel is located near the border with Mexico on the Tohono O'odham Nation reservation.

Its first post office opened in 1917. Between the 2010 and 2020 censuses its population grew from 197 to 205 (+4%).

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

Timeline

San Miguel, 1917 to 1941

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

  1. 20th century
  2. 1917Post officeThe San Miguel post office opens
  3. 1918Post officeThe San Miguel post office closes
  4. 1941On the mapFirst mapped by the U.S. Geological Survey
By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

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On the map

San Miguel on the map, 1941 to 1996

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

San Miguel on the 1941 USGS mapSan Miguel on the 1979 USGS mapSan Miguel on the 1984 USGS mapSan Miguel on the 1996 USGS map1941Vamori 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 San Miguel.

Places that used to be

Lost post offices

San Miguel had its own post office from 1917 to 1918.

San Miguel
1917–1918
19101970today

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

Questions about San Miguel’s history

What year was San Miguel founded?

The San Miguel post office opened in 1917, the earliest record of the town by name (U.S. post office records).

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
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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). How TownRatings grades history →

From U.S. Geological Survey historical maps, 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.