Data on illegal immigration from Mexico into Texas provide accurate information on the impact of this immigration on the generally underfunded and understaffed border school districts in the state. Immigration and Naturalization Service statistics show 20 million illegal immigrants in the United States. A more scientific estimate is 4 million, 2.7 million of which are from Mexico; 675,000 Mexican illegals are estimated to live in Texas. Recent studies suggest that most Mexican illegals are males seeking work. When employed, they earn less and work longer hours than legal workers. Over 70 percent of these illegal workers pay federal income and social security taxes. In contrast, only 1 percent or less receive welfare payments, food stamps, or federally funded job training. Texas Education Agency estimates suggest that as many as 51,348 immigrant children were enrolled in Texas schools in 1976-1977. A more accurate figure is 25,000. This number places strains on school administrators, finances, programs, facilities, and personnel. Thus more resources are needed. Attached tables provide Texas Education Agency enrollment statistics for 1975 to 1977 and the author's estimates of immigrant enrollment for 1981. (PB)