Cory finds some interesting stats from the IRS;
How can Rapid City and Sioux Falls be gaining taxpayers but seeing a net loss in income from migration? I’ll speculate much of the difference comes from age. Young people head for the big cities, where they can find more jobs. Young people earn less money. Older workers accumulate promotions, raises, investment income, and new business ventures. They can afford to buy bigger houses out in South Dakota’s suburbs. They take their higher incomes up the road from Rapid or down the river from Sioux Falls.
| County | Total Net Migration AGI | Total In-Migration AGI | Total Outmigration AGI | Net Change in # Returns |
| Lincoln | $96,177,000 | $210,545,000 | $114,368,000 | 884 |
| Meade | $34,593,000 | $100,979,000 | $66,386,000 | 367 |
| Lawrence | $5,471,000 | $67,995,000 | $62,524,000 | 62 |
| Brown | $5,285,000 | $41,843,000 | $36,558,000 | 227 |
| Pennington | -$5,022,000 | $158,617,000 | $163,639,000 | 126 |
| Minnehaha | -$39,516,000 | $263,095,000 | $302,611,000 | 228 |