New Mexico

San Miguel

27,201
2020 population
1850
first census record
18
census records

About San Miguel

San Miguel, New Mexico, first appears in the United States federal census in 1850, when it recorded a population of 7,074. At the most recent census, in 2020, its population stood at 27,201.

Its recorded population peaked at 30,126 in 2000, and has since declined by roughly 10 percent.

On the ground today, 14 documented military engagements have been recorded within the county, among them Pecos Pueblo Inter-Tribal Raiding, Pecos Pueblo Warfare Evidence, Pecos Pueblo Early Conflicts, and 107 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202027,201
201029,393
200030,126
199025,743
198022,751
197021,951
196023,468
195026,512
194027,910
193023,636
192022,867
191022,930
190022,053
189024,204
188020,638
187016,058
186013,714
18507,074
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in San Miguel

Military engagements that took place in San Miguel, New Mexico.

Pecos Pueblo Inter-Tribal Raiding
1300
Pecos Pueblo Warfare Evidence
1300
Pecos Pueblo Early Conflicts
1300
Pecos Pueblo Early Fortification
1350
Pecos Pueblo Conflicts — New Mexico
1400
Pecos Pueblo Early Conflict
1400
Coronado at Pecos Pueblo 1541
1541
Kearny's Occupation of Las Vegas NM
1846
Las Vegas New Mexico Proclamation
1846
Las Vegas NM – Kearny's Annexation Address
1846
Battle at Las Vegas NM approach
1846
Battle of Apache Canyon (New Mexico)
1862
Las Gorras Blancas — Land Grant Raids New Mexico 1889
1889
Las Gorras Blancas Night Rides — San Miguel County 1889
1889

Historic places in San Miguel

National Register of Historic Places listings in San Miguel, New Mexico.

Ilfeld, Charles, Memorial Chapel
Las Vegas
First Baptist Church
Las Vegas
AT & SF Roundhouse
Las Vegas
Glorieta Pass Battlefield
Santa Fe
Montezuma Hotel Complex
Las Vegas
Building at 1214 Bridge
Las Vegas
Acequia Madre
Las Vegas
Las Vegas Plaza
Las Vegas
Pecos National Historical Park
Pecos
Old Town Residential Historic District
Las Vegas
Angel, Arturo, House
Las Vegas
Bell Ranch Headquarters
Bell Ranch
Conchas Dam Historic District
Conchas Dam
Pecos National Monument
Pecos
Douglas-Sixth Street Historic District
Las Vegas
Distrito de las Escuelas
Las Vegas
Library Park Historic District
Las Vegas
Shawn-Guerin House
Las Vegas
Ilfeld, Adele, Auditorium
Las Vegas
House at 913 2nd
Las Vegas
House at 931 Prince
Las Vegas
Gatignole, Eugenio, House
Las Vegas
House at 16 Grand
Las Vegas
House at 915 2nd
Las Vegas
Browse all New Mexicohistoric sites ›

Other counties in New Mexico

Explore census history and historic records for more New Mexico counties.

Los AlamosLunaMcKinleyMoraOteroQuayRio ArribaRooseveltSan JuanSandovalSanta AnaSanta FeSierraSocorroTaosTorranceUnionValenciaBernalilloCatron
Unlimited access

Everything a full report reveals about San Miguel County, New Mexico

This page charts the census history of San Miguel County, New Mexico. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your San Miguel County, New Mexico report
Or see a real report first

Explore New Mexico records

New Mexicohistory ›NRHP historic sites ›Notable people from New Mexico›

Frequently asked about San Miguel

When does San Miguel first appear in the US census?
San Miguel, New Mexico first appears in the federal census in 1850, with a recorded population of 7,074.
What is the population of San Miguel?
At the most recent federal census (2020), San Miguel had a recorded population of 27,201.
When did San Miguel's population peak?
San Miguel's recorded population peaked at 30,126 in 2000.
Were any battles fought in San Miguel?
14 documented military engagements took place in San Miguel, including Pecos Pueblo Inter-Tribal Raiding, Pecos Pueblo Warfare Evidence, Pecos Pueblo Early Conflicts.
How many historic places are in San Miguel?
107 sites are listed on the National Register of Historic Places in San Miguel, New Mexico.
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report