WASHINGTON — Four failures late Friday cost the government an additional $1 billion.

Among the closings, which brought the year's total to 20, was that of $3.6 billion-asset La Jolla Bank in La Jolla, Calif. The Federal Deposit Insurance Corp. sold La Jolla's operations to OneWest Bank in Pasadena in the second recent deal for the buyers of the failed IndyMac Bank.

Regulators also shuttered $413 million-asset George Washington Savings Bank in Orland Park, Ill., $120 million-asset Marco Community Bank in Marco Island, Fla., and $54 million-asset The La Coste National Bank in La Coste, Texas.

OneWest, launched early last year by a group of investors that had purchased the remains of IndyMac, agreed to buy roughly all of La Jolla's assets and assume its nearly $3 billion in deposits. The acquirer will share losses with the FDIC on more than 90% of the thrift's assets.

It was OneWest's second deal with the government in as many months. On Dec. 18, it took over the operations of $6 billion-asset First Federal Bank of California in Santa Monica.

La Jolla Bank's resolution was estimated to cost the FDIC $882 million.

The FDIC completed whole-bank deals as well in the three other takeovers Friday.

FirstMerit Bank in Akron, Ohio, agreed to assume all of George Washington's $395 million in deposits - paying a 0.3% premium - and acquire virtually all of its assets. The buyer agreed to a loss-sharing deal with the FDIC for $324 million of the assets. The failure was estimated to cost the government $141 million.

The agency announced the sale of Marco Community to Mutual of Omaha Bank, which will take over virtually all of the assets and pay a 1.5% premium for the failed bank's $117 million in deposits. The buyer and the FDIC agreed to share losses on about $105 million of the assets. The estimated cost to the Deposit Insurance Fund was $38 million.

Community National Bank in Hondo, Texas, agreed to buy roughly all of The La Coste's assets and pay a 0.5% premium for its $49 million in deposits. The estimated cost was nearly $4 million.