| Index | Round Lake | Minnesota | National |
| Income per capita | $40,168 | $49,588 | $44,883 |
| Median household income | $81,556 | $92,370 | $81,333 |
| Median income owner occupied | $100,488 | $117,544 | $106,172 |
| Median income renter occupied | $74,383 | $52,026 | $52,080 |
| Median earnings male | $57,221 | $60,747 | $54,343 |
| Median earnings female | $35,255 | $42,223 | $38,439 |
| Unemployment rate | 1.4% | 3.6% | 4.9% |
| Poverty level | 9.9% | 10.8% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 16.4% | 16.4% |
| Manufacturing sector | 20.5% | 20.5% |
| Financial & insurance services | 0.7% | 0.7% |
| Wholesale & retail services | 27.4% | 27.4% |
| Public administration | 0.7% | 0.7% |
| Transportation, warehousing & utilities | 10.3% | 10.3% |
| Education, health & social services | 6.8% | 6.8% |
| Other | 17.1% | 17.1% |
| City | Population | Household Income | National Avg. |
| Wahpeton, IA | 429 | $139,031 | 70.9% |
| Bigelow, MN | 287 | $112,462 | 38.3% |
| Okabena, MN | 215 | $107,787 | 32.5% |
| Lake Park, IA | 1,235 | $94,175 | 15.8% |
| Ocheyedan, IA | 581 | $89,922 | 10.6% |
| Round Lake, MN | 434 | $81,556 | 0.3% |
| City | Population | Household Income | National Avg. |
| Bend, CA | 434 | $0 | 100.0% |
| Bennett, IA | 434 | $106,860 | 31.4% |
| Sigel, IL | 434 | $125,195 | 53.9% |
| North Salem, IN | 434 | $75,950 | 6.6% |
| Arbyrd, MO | 434 | $51,470 | 36.7% |
| Round Lake, MN | 434 | $81,556 | 0.3% |