Thanks, everyone, and good morning and welcome to the Simpson Manufacturing Co., Inc's. First Quarter 2012 Earnings Call. Our earnings press release was issued yesterday. It's available on our website at simpsonmfg.com.
Today's call is also being webcast, and that webcast will be available on our website, as will a replay of this call. Joining me in Pleasanton for today's call are Karen Colonias, Simpson's Chief Executive Officer; and Brian Magstadt, Simpson's Chief Financial Officer. I will lead off, followed by Karen and Brian, and then we will be delighted to take your questions.
Revenue for the quarter was up in most areas where the company operates. We think we benefited from some relatively nice weather in many parts of our operations, but mostly from the outstanding efforts of our people. First quarter sales increased 19.8% for the company, with sales increasing throughout our operations. Total U.S., up 23%; California, up 15%; the west, excluding California, up 20%; the Midwest, up 33%; south -- southeast, up 23%; Northeast, up 22%.
Total international was up 10%; Canada, up 9%; Europe was up 10%; Asia-Pacific, which is China, Australia and New Zealand, is up 26%. By the way, China sales increased, but we still lost some money in China. As a percent of sales, Q1 international sales were 79% -- I mean, 27% versus 29% last year. In actual dollars, international sales increased, but because there was a larger U.S. increase, the relative international percentage amount decreased.
Our home center sales were up 7%, and our largest customer was flat for the quarter. Net income for the quarter was $7.2 million compared to $7.1 million net income last year.
Operating income by segment for the first quarter was as follows: North America, which includes U.S. and Canada, $17.9 million profit, which was an increase of 18% compared to the same quarter last year; Europe, $2.4 million loss compared to $1.5 million loss last year. The change was due primarily to integration costs, increased intangible amortization expenses and fair value adjustments of the inventory; Asia-Pacific had a $0.7 million operating loss, which was flat compared to the prior year.
From a production standpoint, our manufacturing plant in China is producing both imperial- and metric-sized anchors now and is supplying the company's operations worldwide.
The operating environment we are in continues to be very challenging, but our branches are excited about the prospects we see in front of us. Every day, we face competitors that are trying, and sometimes succeeding, in taking away our customers with price. We continue to work every day to earn our customer's business and our products -- with our products and excellent customer service. And we look forward to updating you with the progress we are making to that end.
With that, I'll turn the call over to Karen, who will discuss some of those new opportunities and the progress of our latest acquisitions, all of which are focused on our long-term strategy. Karen?