Updated 1:03 p.m. CST

With all precincts reporting, Republican McCaul is now the final unoffocial winner of District 10 with 60.55 percent of the vote.

Updated 6:41 a.m. CST

With 99 percent of precincts reporting, District 10 Republican incumbent Michael McCaul leads Tawana Cadien with 60.61 percent of the vote.

In District 21, Republican incumbent Lamar Smith is the front-runner, taking 60.51 percent of the vote with 100 percent of precincts reporting.

In District 25, Republican Roger Williams is ahead by a smaller margin than in earlier tallies, with 58.47 percent of the vote, with all precincts reporting.

All precincts are reporting for District 31, where Republican incumbent John Carter is winning with 61.29 percent of the vote.

In District 35, Democrat incumbent Lloyd Doggett leads with 63.95 percent of the vote and all precincts reporting.

All results are unofficial until canvassed.

Updated 10:24 p.m. CST

Republican Incumbent John Carter now leads Democratic challenger Tawana Cadien in the race for District 31, carrying 62.94 percent of the vote. He is one of four republicans leading in Central Texas congressional districts.

Democrat Lloyd Doggett is ahead in his fight for District 35, with 63.82 percent of the vote against Susan Narvaiz.

In District 10, Republican McCaul leads Democrat Cadien with 61.43 percent of the vote.

In District 21, Republican Smith is winning against Democrat Duval with 61.92 percent of the vote.

In District 25, Republican Williams is ahead with 60.41 percent of the vote against Democrat Henderson.

Posted: 8:09 p.m. CST

Based on early voting totals, Republicans lead in three of five contested Central Texas elections for the U.S. House of Representatives. Incumbent Republicans Michael McCaul (District 10), Lamar Smith (District 21) and Roger Williams (District 25) lead their Democratic challengers.

Longtime Democratic Congressman Lloyd Doggett (District 35) leads former San Marcos Mayor and Republican Susan Narvaiz in that race.

Early voting totals for District 31, a contest between John Carter and Stephen Wyman, have not been posted by the Secretary of State.

District 10

Incumbent Republican McCaul leads Democrat Tawana Cadien and Libertarian Richard Priest with 61.60 percent of the vote. McCaul has held the seat since 2005.

The district covers parts of Austin and Pflugerville and extends along Hwy. 290 into Northwest Houston.

District 21

Incumbent Smith is ahead with 63.05 percent of the vote, compared with Democrat challenger Candace Duval, Libertarian candidate John-Henry Liberty and Bill Stout of the Green Party, based on early voting totals.

Smith has been elected to the House with at least 60 percent of the vote every year since his inaugural term in 1986. The district spans from Southwest Austin to northern San Antonio along the west side of I-35, and includes parts of Kerrville, Boerne and Fredericksburg.

District 25

Williams leads the District 25 race with 59.15 percent of the vote over Democrat Elaine Henderson, Libertarian Betsy Dewey and Green Party candidate Roger Quannah Settler.

A Democrat has been elected to represent District 25 for at least the past 20 years. Austin native Rep. Lloyd Doggett, who is now running in the newly realigned District 35, has represented District 25 since 2005. The district stretches from Wimberly to Cedar Park, northward west of Killeen and to just south of Fort Worth, and includes a small segment of Central Austin including the University of Texas campus.

District 31

Early voting totals have not been reported for District 31.

The district includes parts of Belton, Cedar Park, Georgetown, Leander, Round Rock and Temple.

District 35

Democratic incumbent Doggett is ahead of Narvaiz—as well as Libertarian Ross Lynn Leone and Green Party candidate Meghan Owen—with 62.64 percent of the vote.

The district was established by legislators in 2011. It spans from Southeast San Antonio along the I-35 corridor into the east side of Austin surrounding Toll 45.

Each representative elected serves a two-year term. Redistricting in 2011 met controversy from minority and other interest groups throughout the state who claim the new districts disproportionately favor Republicans. In August, a federal court ruled that the new district lines violate the Voting Rights Act, and therefore the districts in the 2012 election must be redrawn by 2014.

All results are unofficial until canvassed.