| Index | Armstrong | Iowa | National |
| Income per capita | $37,883 | $42,672 | $44,883 |
| Median household income | $66,424 | $81,387 | $81,333 |
| Median income owner occupied | $69,979 | $98,724 | $106,172 |
| Median income renter occupied | $0 | $45,890 | $52,080 |
| Median earnings male | $63,834 | $54,047 | $54,343 |
| Median earnings female | $31,118 | $36,462 | $38,439 |
| Unemployment rate | 2.9% | 3.2% | 4.9% |
| Poverty level | 12.5% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 16.7% | 16.7% |
| Manufacturing sector | 44.5% | 44.5% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 5.3% | 5.3% |
| Public administration | 1.0% | 1.0% |
| Transportation, warehousing & utilities | 5.3% | 5.3% |
| Education, health & social services | 5.7% | 5.7% |
| Other | 21.5% | 21.5% |
| City | Population | Household Income | National Avg. |
| Lone Rock, IA | 184 | $89,955 | 10.6% |
| Graettinger, IA | 1,084 | $89,602 | 10.2% |
| Ringsted, IA | 483 | $74,094 | 8.9% |
| Burt, IA | 534 | $73,948 | 9.1% |
| Gruver, IA | 58 | $71,483 | 12.1% |
| Armstrong, IA | 880 | $66,424 | 18.3% |
| City | Population | Household Income | National Avg. |
| Dyer, AR | 880 | $79,914 | 1.7% |
| New Preston, CT | 880 | $157,237 | 93.3% |
| Andover, NY | 880 | $83,539 | 2.7% |
| Taconic Shores, NY | 880 | $205,422 | 152.6% |
| Tetherow, OR | 880 | $264,683 | 225.4% |
| Armstrong, IA | 880 | $66,424 | 18.3% |