| Index | Terril | Iowa | National |
| Income per capita | $31,977 | $42,672 | $44,883 |
| Median household income | $50,456 | $81,387 | $81,333 |
| Median income owner occupied | $55,515 | $98,724 | $106,172 |
| Median income renter occupied | $49,201 | $45,890 | $52,080 |
| Median earnings male | $0 | $54,047 | $54,343 |
| Median earnings female | $32,525 | $36,462 | $38,439 |
| Unemployment rate | 1.1% | 3.2% | 4.9% |
| Poverty level | 30.1% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 9.8% | 9.8% |
| Manufacturing sector | 9.8% | 9.8% |
| Financial & insurance services | 14.3% | 14.3% |
| Wholesale & retail services | 15.8% | 15.8% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 3.0% | 3.0% |
| Education, health & social services | 9.0% | 9.0% |
| Other | 36.1% | 36.1% |
| City | Population | Household Income | National Avg. |
| Wahpeton, IA | 429 | $139,031 | 70.9% |
| Fostoria, IA | 186 | $112,508 | 38.3% |
| West Okoboji, IA | 356 | $106,784 | 31.3% |
| Arnolds Park, IA | 999 | $97,490 | 19.9% |
| Orleans, IA | 539 | $92,110 | 13.3% |
| Terril, IA | 356 | $50,456 | 38.0% |
| City | Population | Household Income | National Avg. |
| Belk, AL | 356 | $54,740 | 32.7% |
| Okolona, AR | 356 | $0 | 100.0% |
| West Okoboji, IA | 356 | $106,784 | 31.3% |
| Leonard, MI | 356 | $88,671 | 9.0% |
| Howardville, MO | 356 | $44,718 | 45.0% |
| Terril, IA | 356 | $50,456 | 38.0% |