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San Diego, TX Demographics

San Diego, TX is the 495th most populous of 1862 cities in Texas, with 3,748 residents across 2 square miles. That is about 1,972 people per square mile.

At the 2020 census

Population 3,748
Land area 2 sq mi
Density 1,972 / sq mi

Data: 2020 Decennial Census · land area from Census TIGER/Line

How San Diego, TX compares to the US

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About this page

City statistics cover the municipal boundary only, not the wider metro area.

Figures come from the 2020 census and the American Community Survey, compared against national averages.

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