| Index | Langford | South Dakota | National |
| Income per capita | $35,621 | $41,166 | $44,883 |
| Median household income | $78,131 | $77,914 | $81,333 |
| Median income owner occupied | $76,441 | $100,475 | $106,172 |
| Median income renter occupied | $82,350 | $45,187 | $52,080 |
| Median earnings male | $56,283 | $52,540 | $54,343 |
| Median earnings female | $29,845 | $36,073 | $38,439 |
| Unemployment rate | 2.1% | 2.9% | 4.9% |
| Poverty level | 9.3% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.8% | 0.8% |
| Manufacturing sector | 27.1% | 27.1% |
| Financial & insurance services | 3.4% | 3.4% |
| Wholesale & retail services | 16.9% | 16.9% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 5.9% | 5.9% |
| Education, health & social services | 25.4% | 25.4% |
| Other | 20.3% | 20.3% |
| City | Population | Household Income | National Avg. |
| Groton, SD | 1,915 | $116,300 | 43.0% |
| Britton, SD | 1,372 | $101,722 | 25.1% |
| Pierpont, SD | 198 | $89,051 | 9.5% |
| Claremont, SD | 52 | $61,065 | 24.9% |
| Andover, SD | 81 | $60,703 | 25.4% |
| Langford, SD | 538 | $78,131 | 3.9% |
| City | Population | Household Income | National Avg. |
| Fox River, AK | 538 | $64,574 | 20.6% |
| Elma, IA | 538 | $40,890 | 49.7% |
| Keithsburg, IL | 538 | $55,701 | 31.5% |
| Thompsonville, IL | 538 | $54,248 | 33.3% |
| Elizabethtown, IN | 538 | $79,252 | 2.6% |
| Langford, SD | 538 | $78,131 | 3.9% |