"NCTCOG http://www.nctcog.org/ serves a 16-county region of North Central Texas, which is centered around the two urban centers of Dallas and Fort Worth. NCTCOG has over 230 member governments including 16 counties, numerous cities, school districts, and special districts. Click here for more information about membership in NCTCOG."
Geographic Information Systems (GIS) at the North Central Texas Council of Governments Research Service: http://gis.dfwinfo.com/
"The Office of the State Demographer was created in 2001, during the 77th legislative session. Our office disseminates demographic and socioeconomic data to the public, informs the Legislature of the impact of the demographic and socioeconomic changes on the demand of state services, and provides population projections and estimates for the state, counties and municipalities."
Texas State Data Center http://txsdc.utsa.edu/
We've moved! Several of the links listed below will not work yet. We'll try to get that corrected ASAP.