California

Solano

453,491

2020 population

1850

first census record

census records

About Solano

Solano, California, first appears in the United States federal census in 1850, when it recorded a population of 580. At the most recent census, in 2020, its population stood at 453,491.

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

On the ground today, 34 places are listed on the National Register of Historic Places.

Population by decade

Census Year	Population	Chart
2020	453,491
2010	413,344
2000	394,542
1990	340,421
1980	235,203
1970	169,941
1960	134,597
1950	104,833
1940	49,118
1930	40,834
1920	40,602
1910	27,559
1900	24,143
1890	20,946
1880	18,475
1870	16,871
1860	7,169
1850	580

Source

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

Historic places in Solano

National Register of Historic Places listings in Solano, California.

USCGC STORIS (cutter)

Benicia Capitol State Historic Park

Benicia

LCS-102 (landing craft support)

Vallejo

Pleasants Ranch

Vacaville

Mare Island Naval Shipyard

Vallejo

Brown, Jackson Fay, House

Suisun Masonic Lodge No. 55

Suisun City

Fischer, Joseph, House

Benicia

Sacramento Northern Railway Historic District

Suisun City

Benicia Southern Pacific Railroad Passenger Depot

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Everything a full report reveals about Solano County, California

This page charts the census history of Solano County, California. 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 Solano

When does Solano first appear in the US census?

Solano, California first appears in the federal census in 1850, with a recorded population of 580.

What is the population of Solano?

At the most recent federal census (2020), Solano had a recorded population of 453,491.

How many historic places are in Solano?

34 sites are listed on the National Register of Historic Places in Solano, California.

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