[2] The county is named for George Wilkins Kendall, a journalist and Mexican–American War correspondent.

Kendall County is part of the San Antonio–New Braunfels, TX metropolitan statistical area.

Progressive Farmer rated Kendall County fifth in its list of the "Best Places to Live in Rural America" in 2006.

This is largely due to the heavily German American heritage of the county and that the area Kendall County occupies was the center of Texas’ small Unionist movement during the Civil War.

Most Texas Germans acquiesced to secession, but Fredericksburg and surrounding areas were still self-sufficient and sold surplus food to the army.

Since then, only Lyndon Johnson in 1964 and Jimmy Carter in 1976 have managed over 30% for the Democratic Party in Kendall County.

[43] Count Castell[44] of the Adelsverein negotiated with the separate Darmstadt Society of Forty to colonize two hundred families on the Fisher–Miller Land Grant territory in Texas.

The colonies failed after the Adelsverein funding expired, and also due to conflict of structure and authorities.