San Diego, Texas

San Diego population, 2020 to 2024

San Diego lost 126 residents from July 2020 to July 2024, a change of -3.4%. In the latest year it moved by -11.

San Diego covers 1.90 square miles of land, for 1,905 people per square mile of land. The median Texas place of 5,000+ has 1,561, so San Diego is denser than the typical town.

The 2 counties San Diego spans

San Diego crosses county lines. The Census county-part estimates split its 3,620 residents as follows; Duval County holds 79.0% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

ZIP codes in San Diego

1 ZIP Code Tabulation Area (ZCTA) overlaps San Diego by at least 10% of the ZCTA's or the city's land: 78384. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where San Diego is

The Census internal point of San Diego is at 27.760900, -98.238900. Austin, the capital, is 176.2 miles N in a straight line. The nearest larger place is Alice, TX (17,595 people), 10.6 miles away. The nearest city of 100,000 or more is Corpus Christi, TX, 65.1 miles away.

Daylight in San Diego

At 27.76° N, San Diego gets about 13 h 54 min of daylight around the June solstice and 10 h 23 min around the December solstice, a swing of 3 h 31 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near San Diego

The eight nearest incorporated places of 1,000+ in Texas, measured between internal points. The closest is Alice, 10.6 miles away, with 17,595 people.