[2] The town is named for founder Edward Cunningham Lasater's ranch, La Mota de Falfurrias.

The biggest industry in Falfurrias is the United States Border Patrol interior checkpoint south of the city on U.S. Route 281.

[6] As an indirect consequence, many migrants seeking to bypass the checkpoint by setting off across the arid land die of exposure and dehydration.

[7] Falfurrias and Brooks County were featured in a 2014 Latino USA radio story on illegal immigration in South Texas.

[11] Sweet-cream butter and other products from Edward Lasater's creamery company made the town a familiar name across the state.

Don Pedro Jaramillo, a Mexican-born curandero known as the "Healer of Los Olmos", was buried in Falfurrias in 1907 and is venerated at a shrine there.

Irrigation methods introduced to the area in the 1920s brought in truck farming and the citrus fruit industry.

The area received another economic boost in the 1930s and 1940s when extensive oil and gas reserves were discovered around Falfurrias.

[14] According to an NPR report, the station has been increasingly busy due to a surge of migrants coming from Central America.

[9] Town founder Edward C. Lasater claimed that it was a Lipan word meaning "the land of heart's delight".

[9] According to the United States Census Bureau, the city has a total area of 2.9 sq mi (7.4 km2), all land.

[1] Falfurrias has a hot, semiarid climate (Köppen BSh), bordering on a humid subtropical climate (Cfa) and characterized by very hot, humid, but generally dry summers and warm, dry winters with cold mornings.

Occasionally, a strong easterly flow from the Gulf disturbs the normally dry winter conditions; 9.81 inches (249.2 mm) fell in January 1958, yet only 0.97 inches (24.6 mm) was recorded in 5 months from November 1970 to March 1971 – including a 115-day entirely rainless spell from October 6 to January 28.