History · Hillsboro

Hillsboro’s history is
mostly unwritten

The public archives hold no old photos of Hillsboro. The rest are in attics, shoeboxes and the historical society. Help start the collection.

0old images & papers
9historic places
6recent photos

The story so far

from Wikipedia & the U.S. Census

Hillsboro is an unincorporated community in Sierra County, New Mexico, United States, located in the southwestern part of the state. It was founded in 1877, following the discovery of gold. The community was the county seat of Sierra County from 1884 until 1936, when Hot Springs (now called Truth or Consequences) became the county seat. As of the 2020 census, Hillsboro had a population of 140. The town was named Hillsborough by prospectors in December 1877, but later shortened to Hillsboro. By 1880, the town had four companies of soldiers and 400 miners, but the population soon grew to 700. A county courthouse was built in 1892. By 1907, the population was 1200. A flood on 10 June 1914 caus…

Between the 2010 and 2020 censuses its population grew from 124 to 140 (+13%). Half of its homes were built before 1976.

Wikipedia doesn’t have a history of Hillsboro yet — the old photos, dates and memories neighbors add here are how it gets written.

Intro from Wikipedia, licensed CC BY-SA 4.0. Population and housing: U.S. Census Bureau.

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

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Famous people close to Hillsboro

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By decade

Hillsboro, decade by decade

National Register of Historic Places

9 historic places in Hillsboro

9 places in Hillsboro are on the National Register of Historic Places, the country’s official list of buildings and places worth saving.

#17
In New Mexicoby listings · most towns there have none
9places listed8 buildings · 1 other
0National Historic LandmarksNone here yet
12historic buildings protectedcounting each building in a district
1993first listedHillsboro High School · newest: Percha Creek Bridge, 1997

When they were listed

The Register began in 1966. Hillsboro’s busiest decade was the 1990s.
National Park Service, National Register of Historic Places (05/22/2026) · styles from the National Archives catalog · photos from Wikimedia Commons, credited on each place

Then & now

When neighbors add old photos, retakes from the same spot appear here side by side.

From Wikimedia Commons (4) and the Library of Congress (2). Images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.

We left the porch light on

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/19 · 2025-01-01