South Dakota Gov. Dennis Daugaard will be able to recite a litany of numbers to make his case when he visits the Mall of America next week to try to persuade Minnesotans to move west. But the most recent Census migration figures between the two states show it may still be a tough sell.
The governor will make a case for a state with low taxes and a low cost of living. South Dakota has the second-lowest per capita taxation in America. It has no corporate income tax, no personal income tax, lower cost of unemployment insurance than Minnesota, lower cost of living, lower health care costs and cheaper energy. All that information is available here, on a state website where you can compare the costs of business in South Dakota and any other state.
Despite all this, South Dakota's success luring Minnesotans has been limited.
The state launched – a website designed to connect out-of-state workers with in-state careers – in October 2006. Some 534 people have found jobs and relocated their families from Minnesota to South Dakota through the website, the governor's office says. About 3,000 Minnesotans have registered with the site over the past seven years.
But South Dakotans have also been moving to Minnesota. Migration from Minnesota to South Dakota was, in 2011, a net of 37, according to U.S. Census data. 5,342 people left Minnesota for South Dakota, but 5,305 South Dakotans came east. 
North Dakota does a more brisk trade in residency with Minnesota, partly because of the border cities of Fargo and Grand Forks. The state with the oil boom netted 4,670 Minnesotans in 2011, the latest year for which the data is available. 12,244 moved from Minnesota to North Dakota, and 7,574 came back this way. 

Correction appended: An earlier version of this story was incorrect in saying that migration from Minnesota to South Dakota was a net of 339 in 2011, according to U.S. Census data. The actual net migration to South Dakota that year was 37.