Maryland

Montgomery

1,062,061

2020 population

1790

first census record

census records

About Montgomery

Montgomery, Maryland, first appears in the United States federal census in 1790, when it recorded a population of 18,003. At the most recent census, in 2020, its population stood at 1,062,061.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 34 documented military engagements have been recorded within the county, among them Battle of Bloody Run Maryland, Beallsville Skirmish, Battle of Poolesville Maryland, and 82 places are listed on the National Register of Historic Places.

Population by decade

Census Year	Population	Chart
2020	1,062,061
2010	971,777
2000	873,341
1990	757,027
1980	579,053
1970	522,809
1960	340,928
1950	164,401
1940	83,912
1930	49,206
1920	34,921
1910	32,089
1900	30,451
1890	27,185
1880	24,759
1870	20,563
1860	18,322
1850	15,860
1840	15,456
1830	19,816
1820	16,400
1810	17,980
1800	15,058
1790	18,003

Source

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

Battles & engagements in Montgomery

Military engagements that took place in Montgomery, Maryland.

Battle of Bloody Run Maryland

1675

Beallsville Skirmish

1861

Battle of Poolesville Maryland

1861

Edwards Ferry Skirmish

1861

Battle of Ball's Bluff Oct 21 1861

1861

Leesburg-Potomac River Crossing Skirmishes 1861-1862

1861

Poolesville Skirmish 1861

Seneca Mills Skirmish

1861

Newtown (Veracruz) Skirmish 1861

1861

Poolesville MD Picket Engagement August 1861

1861

C&O Canal Skirmish at Edwards Ferry

1861

Ball's Bluff 1861

1861

Nolan's Ferry Skirmish

1862

Conrad's Ferry Skirmish

1862

White's Ferry Operations

1862

Barnesville Skirmish

1862

Conrad's Ferry / White's Ford Skirmish

1862

Hyattstown Skirmish

1862

Poolesville MD — White's Ford Operations (1862)

1862

Poolesville Area Skirmishes 1862

1862

Rockville Cavalry Skirmish (Stuart's Ride to Gettysburg via Maryland, 1863)

1863

Stuart's Gettysburg Campaign Maryland Crossing June 1863

1863

Poolesville Skirmish 1863

1863

Mosby's Raid: The Miskel Farm Fight (Loudoun County, 1863)

1863

Rockville Skirmish

1864

White's Ford Crossing (Early's Retreat, July 14, 1864)

1864

Poolesville Skirmish (Early's Retreat, July 1864)

1864

Fort Stevens — Skirmish (July 11–12 1864)

1864

Rockville Wagon Train Capture 1864

1864

Silver Spring Engagement (Early's Raid, July 1864)

1864

Silver Spring / Blair House Skirmish 1864

1864

Early's Raid on Washington

1864

Historic places in Montgomery

National Register of Historic Places listings in Montgomery, Maryland.

Polychrome Historic District

Silver Spring

Sandy Spring Friends Meetinghouse

Brookeville Woolen Mill and House

Brookeville

Bethesda Meetinghouse

Bethesda

Beale, Edward, House

Potomac

Poolesville Historic District

Poolesville and

Garrett Park Historic District

Garrett Park

Clifton

Ednor

Brookeville Historic District

Brookeville

Frieda Fromm-Reichmann Cottage

Rockville

Oaks II

Laytonsville

Walker Prehistoric Village Archeological Site

Poolesville

Takoma Park Historic District

Takoma Park

Rockville Railroad Station

Rockville

Milton

Bethesda

Browse all Marylandhistoric sites ›

Other counties in Maryland

Explore census history and historic records for more Maryland counties.

Prince George's Queen Anne's Somerset St. Mary's Talbot Washington Wicomico Worcester Allegany Anne Arundel Baltimore Baltimore city Calvert Caroline Carroll Cecil Charles Dorchester Frederick Garrett

Unlimited access

Everything a full report reveals about Montgomery County, Maryland

This page charts the census history of Montgomery County, Maryland. 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.

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Frequently asked about Montgomery

When does Montgomery first appear in the US census?

Montgomery, Maryland first appears in the federal census in 1790, with a recorded population of 18,003.

What is the population of Montgomery?

At the most recent federal census (2020), Montgomery had a recorded population of 1,062,061.

Were any battles fought in Montgomery?

34 documented military engagements took place in Montgomery, including Battle of Bloody Run Maryland, Beallsville Skirmish, Battle of Poolesville Maryland.

How many historic places are in Montgomery?

82 sites are listed on the National Register of Historic Places in Montgomery, Maryland.

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