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Lamar is located in Aransas County in the state of Texas (TX).

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Lamar is a small, unincorporated community in Aransas County, Texas (USA), ten miles north of Rockport and forty miles north of Corpus Christi. The community was named for Mirabeau B. Lamar, the second president of the Republic of Texas. Lamar was founded in 1839 at Lookout Point, on the channel entrance to Copano Bay. President Lamar agreed to relocate the customhouse here, and the town thrived as a port and the site of a salt works. This prosperity ended abruptly on February 11, 1864 when the town was bombarded and practically obliterated by the Union Navy. For most of the 20th century the population was less than 200, but by the 2000 census it was assessed at 1,600. The restored cemetery is a Texas historical landmark.
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Lamar, TX Map (Interactive)

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Lamar Latitude: 28.2335 Longitude: -96.9422

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The Zip Code for Lamar, TX is: 78382


Facts & Data:

Lamar Texas Physical Characteristics:

Lamar has an area of 4.9 square miles
  • Land: 3.0611822393822 Sq. Mi. (62.42%)
  • Water: 1.8429274131274 Sq. Mi.(37.58%)
The Lamar CDP takes up 0.9% of the area of Aransas County.

Map Location Coordinates:

  • Latitude: +28.1403931
  • Longitude: -096.9883046
Lamar Land Water Pie Chart

Lamar, TX Climate Information:

  • Average Temperature: 69.7°F
*Based on annual average for Weather Station USW00023906 PORT ARANSAS 32 NNE
Latitude: 28.3044 Longitude: -96.8231 Elevation: 4.6 feet.

Lamar, TX Population Data:

According to the 2010 U.S. Census, the population of Lamar was 636 people, which is 2.7 % of the entire population of Aransas County.


  • 49.21% Male
  • 50.79% Female


  • 93.396% White
  • 0.157% Black
  • 1.572% Asian
  • 0.63% American Indian/Alaskan Native
  • 0.00% Pacific Islander
  • 1.101% Mixed
  • 3.145% Other


  • 88.99% Not Hispanic or Latino
  • 11.01% Hispanic or Latino
Lamar Race Population Ring Chart

Lamar, TX Housing Information:

Average Household Size: 2.1
Number of Residences: 607
  • Occupied: 304 (50.08%)
  • Vacant: 303 (49.92%)

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