In the first of a series that I'll be working on, because I haven't seen any in state publications as of yet, here is a map of Prop 2 results by County, the Texas Gay Marriage Amendment. Be aware this one is colored differently than future ones will be.  Because Travis County was the only county to vote against the Amendment, the blue v. red coloring is based off of the degree below or above the statewide "YES" vote of 76%.

As can be seen here, support for the amendment increases the farther away one gets from an urban area.  (Lubbock, Abilene, Midland/Odessa, and Laredo all have an impact, even in heavily Pro-Prop 2 areas.  A secondary effect at play would be density of Hispanic population (i.e. border) having a moderating effect on support for the Amendment.  In fact, other blogs have reported on pockets of outright opposition to Prop 2 in certain Hispanic areas.  Here in Austin, African-American and Hispanic precincts went against Prop 2, counter to what many thought would happen. I'm working on a Travis map as well, but until then...