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Lathrop, California facts for kids

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City of Lathrop
Location in San Joaquin County and the state of California
Location in San Joaquin County and the state of California
Country  United States
State  California
County San Joaquin
Incorporated July 1, 1989
 • Total 23.033 sq mi (59.655 km2)
 • Land 21.931 sq mi (56.800 km2)
 • Water 1.102 sq mi (2.854 km2)  4.79%
23 ft (7 m)
 • Total 22,112
 • Estimate 
 • Density 960.01/sq mi (370.665/km2)
Time zone UTC-8 (PST)
 • Summer (DST) UTC-7 (PDT)
ZIP code
Area code(s) 209
FIPS code 06-40704
GNIS feature ID 1658948

Lathrop is a city located in San Joaquin County, California, United States. At the 2010 census Lathrop’s population was 18,023. The city is located in Northern California at the intersection of Interstate 5 and SR 120.


Lathrop was platted when the railroad was extended to that point. A post office has been in operation at Lathrop since 1871. The city was named for the maiden name of the wife of Leland Stanford. In September 1869, four months after the railheads of the transcontinental railroad met at Promontory, Utah, the completion of the San Joaquin River Bridge at Mossdale crossing at Lathrop actually completed the west coast link.

On August 14, 1889 Chief Justice of California David S. Terry assaulted United States Supreme Court Justice Stephen J. Field, at the train station in Lathrop. Field's bodyguard United States Marshal David Neagle (formerly assigned to Tombstone, Arizona) shot and killed Terry. The events led the United States Supreme Court decision In re Neagle.


Lathrop is located at 37°49′1″N 121°17′19″W / 37.81694°N 121.28861°W / 37.81694; -121.28861 (37.816904, -121.288633). The San Joaquin River is on the west side of Lathrop and has elevation of 20 feet (7 m).

Neighboring towns include Manteca, Ripon, French Camp, and Tracy.

According to the United States Census Bureau, the city covers an area of 23.0 square miles (60 km2), 21.9 square miles (57 km2) of it land, and 1.1 square miles (2.8 km2) of it (4.79%) water.

Public transportation

The City of Lathrop is served by The San Joaquin Regional Transit District.


Historical population
Census Pop.
1890 577
1960 1,123
1970 2,137 90.3%
1980 3,717 73.9%
1990 6,841 84.0%
2000 10,445 52.7%
2010 18,023 72.6%
Est. 2015 20,866 15.8%
U.S. Decennial Census


The 2010 United States Census reported that Lathrop had a population of 18,023. The population density was 782.5 people per square mile (302.1/km²). The racial makeup of Lathrop was 7,410 (41.1%) White, 1,300 (7.2%) African American, 231 (1.3%) Native American, 3,968 (22.0%) Asian (mostly Filipino), 144 (0.8%) Pacific Islander, 3,735 (20.7%) from other races, and 1,235 (6.9%) from two or more races. Hispanic or Latino of any race were 7,674 persons (42.6%).

The Census reported that 18,011 people (99.9% of the population) lived in households, 6 (0%) lived in non-institutionalized group quarters, and 6 (0%) were institutionalized.

There were 4,782 households, out of which 2,738 (57.3%) had children under the age of 18 living in them, 2,973 (62.2%) were opposite-sex married couples living together, 719 (15.0%) had a female householder with no husband present, 379 (7.9%) had a male householder with no wife present. There were 376 (7.9%) unmarried opposite-sex partnerships, and 35 (0.7%) same-sex married couples or partnerships. 484 households (10.1%) were made up of individuals and 128 (2.7%) had someone living alone who was 65 years of age or older. The average household size was 3.77. There were 4,071 families (85.1% of all households); the average family size was 3.99.

The population was spread out with 5,819 people (32.3%) under the age of 18, 1,814 people (10.1%) aged 18 to 24, 5,324 people (29.5%) aged 25 to 44, 3,897 people (21.6%) aged 45 to 64, and 1,169 people (6.5%) who were 65 years of age or older. The median age was 30.5 years. For every 100 females there were 99.7 males. For every 100 females age 18 and over, there were 97.7 males.

There were 5,261 housing units at an average density of 228.4 per square mile (88.2/km²), of which 3,604 (75.4%) were owner-occupied, and 1,178 (24.6%) were occupied by renters. The homeowner vacancy rate was 3.7%; the rental vacancy rate was 5.5%. 13,191 people (73.2% of the population) lived in owner-occupied housing units and 4,820 people (26.7%) lived in rental housing units.


As of 2008, the city had a population of 17,429. The population density was 637.6 people per square mile (246.2/km²). There were 2,991 housing units at an average density of 182.6 per square mile (70.5/km²). The racial makeup of the city was 50.92% White, 4.49% African American, 1.21% Native American, 13.36% Asian (mostly Filipino), 0.54% Pacific Islander, 21.11% from other races, and 8.38% from two or more races. Hispanic or Latino of any race were 38.59% of the population.

Sister city

Lathrop participates in the Sister City program and is tied to Bacarra, Ilocos Norte, Philippines.

Economic potential

The City of Lathrop has a seven-mile (11 km) radius population of 105,893 with an average household income of $63,072.

Lathrop is centered between the Stockton and Tracy submarkets – both within a 20 miles (32 km) radius.

In April 2014, electric car maker Tesla Motors (based in Palo Alto, CA, about an hour southwest) announced that it would be opening a factory in Lathrop, in a 430,000 sq-ft facility that was once a DaimlerChrysler distribution center. The Tesla website showed 34 positions it was looking to fill to start.

Lathrop large development

  • Mossdale Village-Located west of I-5 and east of the San Joaquin River is Mossdale Village- consists of 2375 units. Of unique historical significance, the development abuts the site of the San Joaquin River Bridge, the final link to the west coast for the Transcontinental Railroad, actually completed 4 months after the official completion celebration and the driving of the "final" golden spike at Promontory Utah. (California State Historical Marker number 781-7 is at Mossdale Crossing Park.)
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