California

San Joaquin

779,233
2020 population
1850
first census record
18
census records

About San Joaquin

San Joaquin, California, first appears in the United States federal census in 1850, when it recorded a population of 3,647. At the most recent census, in 2020, its population stood at 779,233.

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

On the ground today, 35 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020779,233
2010685,306
2000563,598
1990480,628
1980347,342
1970290,208
1960249,989
1950200,750
1940134,207
1930102,940
192079,905
191050,731
190035,452
189028,629
188024,349
187021,050
18609,435
18503,647
Source

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

Historic places in San Joaquin

National Register of Historic Places listings in San Joaquin, California.

Gew, Wong K., Mansion
Stockton
Ohm, John, House
Tracy
Nippon Hospital
Stockton
Hotel Stockton
Stockton
Woodbridge Masonic Lodge No. 131
Woodbridge
Elks Building
Stockton
Locke House and Barn
Lockeford
Philomathean Clubhouse
Stockton
Tretheway Block
Stockton
Lodi Arch
Lodi
IOOF Lodge #355
Clements
Bank of Italy
Tracy
U.S. Post Office
Stockton
I.O.O.F. Hall
Woodbridge
Woman's Club of Lodi
Lodi
Hotel Lodi
Lodi
Rodgers, Moses, House
Stockton
Fox California Theater
Stockton
Bank of Tracy
Tracy
Holt, Benjamin, House
Stockton
Harmony Grove Church
Lockeford
El Dorado Elementary School
Stockton
Stockton Savings and Loan Society Bank
Stockton
Tracy City Hall and Jail
Tracy
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Other counties in California

Explore census history and historic records for more California counties.

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Everything a full report reveals about San Joaquin County, California

This page charts the census history of San Joaquin 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 San Joaquin

When does San Joaquin first appear in the US census?
San Joaquin, California first appears in the federal census in 1850, with a recorded population of 3,647.
What is the population of San Joaquin?
At the most recent federal census (2020), San Joaquin had a recorded population of 779,233.
How many historic places are in San Joaquin?
35 sites are listed on the National Register of Historic Places in San Joaquin, California.
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