| Index | Gardner | North Dakota | National |
| Income per capita | $37,293 | $49,864 | $44,883 |
| Median household income | $0 | $89,503 | $81,333 |
| Median income owner occupied | $0 | $111,897 | $106,172 |
| Median income renter occupied | $0 | $53,273 | $52,080 |
| Median earnings male | $46,974 | $60,637 | $54,343 |
| Median earnings female | $56,565 | $38,077 | $38,439 |
| Unemployment rate | 4.0% | 2.0% | 4.9% |
| Poverty level | 0.0% | 11.2% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 13.6% | 13.6% |
| Manufacturing sector | 9.1% | 9.1% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 13.6% | 13.6% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 22.7% | 22.7% |
| Education, health & social services | 9.1% | 9.1% |
| Other | 31.8% | 31.8% |
| City | Population | Household Income | National Avg. |
| Brooktree Park, ND | 223 | $247,638 | 204.5% |
| Argusville, ND | 604 | $205,099 | 152.2% |
| North River, ND | 51 | $174,229 | 114.2% |
| Harwood, ND | 750 | $165,764 | 103.8% |
| Amenia, ND | 144 | $117,336 | 44.3% |
| Gardner, ND | 98 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Georgetown, AR | 98 | $25,883 | 68.2% |
| Campo, CO | 98 | $39,587 | 51.3% |
| The Rock, GA | 98 | $0 | 100.0% |
| Somers, IA | 98 | $61,528 | 24.4% |
| Culver, KS | 98 | $40,762 | 49.9% |
| Gardner, ND | 98 | $0 | 100.0% |