KEY REAPPORTIONMENT BATTLES FOLLOWING 1990 CENSUS

19 congressional seats will change hands, with eight states gaining and 13 states losing representatives. Here’s where the battles will be most intense over redrawing of district lines:

CALIFORNIA: Republicans, still smarting from the congressional redistricting imposed by Democrats 10 years ago, are positioned to do better with Pete Wilson holding the governorship. Democrats still control the Legislature but are unlikely to match their gain of six U.S. House seats after the 1980 census.

FLORIDA: Democrats hold both houses of the Legislature and recaptured the governorship with the election of Lawton Chiles. But the strong growth in Republican voter registration will work against a Democratic sweep of new seats.

TEXAS: Ann Richards’ victory in the governor’s race gave Democrats complete control of redistricting. Republicans worry that Democrats may be able to capture all three new seats.

NEW YORK: Democrats control the governorship and the state Assembly, but Republicans firmly hold the state Senate, guaranteeing that both parties will feel the pain of the state’s three-seat loss. Some incumbent U.S. representatives could be forced to run against each other.

MICHIGAN: Republicans narrowly hold the state Senate, Democrats maintain a large majority in the state House, and the GOP regained the governorship in November. A major complication: pressure to maintain two black congressional seats, despite population losses in Detroit.

The new U.S. House of Representatives: Where the changes are

Number of House members in 1991, with change from 1980 in parentheses. Arizona 6 (+1) California 52 (+7) Florida 23 (+4) Georgia 11 (+1) Illinois 20 (-2) Iowa 5 (-1) Kansas 4 (-1) Kentucky 6 (-1) Louisiana 7 (-1) Massachusetts 10 (-1) Michigan 16 (-2) Montana 1 (-1) New Jersey 13 (-1) New York 31 (-3) North Carolina 12 (+1) Ohio 19 (-2) Pennsylvania 21 (-2) Texas 30 (+3) Virginia 11 (+1) Washington 9 (+1) West Virginia 3 (-1) Source: U.S. Census Bureau