More historic than 15% of U.S. towns · #584 of 847 in California. What drives it
Most of Lathrop was built recently: 0.7% of its homes predate 1940 and the median home dates from 2007. Below: 2 old photos and papers, maps from 1884 on, and the census since 1890.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1871.The full story ↓
History grade
What drives Lathrop’s History grade
On its age, its old homes and the National Register, Lathrop is more historic than 15% of U.S. towns, #584 of 847 in California. Its age holds the grade up; its share of homes from before 1940 pulls it down.
C−
HistoryA character grade: shown, never part of Lathrop’s overall grade.
Few California towns list much on the Register (a typical California town has 0.0 per 10,000 residents, the U.S. 2.4), so Lathrop’s 0.0 sits below most of its state (31% of California towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from D to C−. The pre-1940 share (±0.7 points) is firm at this size. Two sources give 1868.
Founding year: Wikidata (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Lathrop’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
1884Sheet 1 of 1
Edition
Sheets
BrickWoodStone
Sanborn Map Company, via the Library of Congress. Editions published in 1930 or earlier, which are in the public domain.
On the map
Lathrop on the map, 1915 to 1996
Every edition of the U.S. Geological Survey’s map of Lathrop. Tap a year, or press play to watch the town change.
1915Lathrop sheet · 1:31,680
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Lathrop.
Lathrop was developed around railroad interests. The town was founded around 1868 when the first transcontinental railroad was extended to the area after a dispute between the president of the Central Pacific Railroad, Leland Stanford, and the City of Stockton. The two parties had struck a right-of-way agreement to build a railroad through Stockton, but when city officials delayed in deciding where the alignment should go, Stanford decided to instead build the railroad around Stockton and set up a new town along the route.
Passages that mention Lathrop, cut from the printed page as they were published.
History of San Joaquin County, California1923 · page 653Read the page →
Read the text
Coming back to Lathrop, Mr. Southwell became assistant agent for the Wells Fargo Express Companj", and then went on the road as a messenger for the company, later becoming the agent at Lathrop, and then assistant agent at Santa Cruz. Returning again to his old home town of Lathrop, he purchased an interest in the store where he had worked as a boy, at this time being conducted by S. W. Reynolds, and
Text read by machine from the scan; it may contain errors.
History of San Joaquin County, California1923 · page 1607Read the page →
Read the text
The father, Charles Mauro, was a shoemaker in his native country who came to Lathrop, San Joaquin County, in 1894, where he followed his trade successfully and also owned profitable vegetable gardens near Lathrop. In 1901 Salvador Mauro came to America with his mother and joined the husband and father at Lathrop. When the father passed away in 1908 the vegetable gardens were sold. The mother
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
Timeline
Lathrop, 1868 to 2001
Woven from the archive, old maps, post office records, the National Register and the people born here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
In 1868, according to Wikidata and Wikipedia’s history of the town. Lathrop’s post office opened in 1871, and the census of 1890 counted 577 people here.
How does Lathrop rank for history?
Lathrop is more historic than 15% of U.S. towns, #584 of 847 in California. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
How old are the homes in Lathrop?
0.7% of Lathrop’s homes were built before 1940 (Census estimate), against a typical 3.4% for a California town; the median home was built in 2007.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (10), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System, Sanborn fire insurance maps (Library of Congress) and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
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